Explain how atomic interactions determine a material to be transparent and opaque

Answers

Answer 1

Answer:

The materials are opaque or crystalline from a client to the orientation and type of union between their atoms, forming two types of structures.

These two structures can be crystalline or amorphous.

In the case of being crystalline, these unions do not allow light to pass through the medium of the object or body of said compound, making it totally refract and giving the appearance of OPAQUE.

On the other hand, in those compounds that we call amorphous, the atoms are located in a different way that makes light pass through them, without absorbing or identifying any light beam, so they look transparent.

Explanation:

Example: A glass cup has an amorphous structure, while a porcelain or porcelain plate has a crystalline structure.


Related Questions

Why is a telephone considered an example of matter?

Answers

Answer:

Matter is anything that is made up of atoms. Whether its a computer, a drink, a suitcase, a telephone, whatever.

If it has mass, if it occupies space, and if it has volume, then it is matter.

Also, matter comes in the form of solids, liquids, and gasses.

In this case, the telephone is a solid.

plzzz mark me brainliest if this helped :)

I need 3 more brainliests to become an expert

Answer:

Matter is anything that is made up of atoms.

Explanation:

If it has mass, occupies space, and has volume, then it is matter. Also, matter comes in the form of solids, liquids, and gasses. The telephone is a solid.

What is the formula for frequency?

Answers

Answer:

Frequency = Velocity / Wavelength

or

f = v / λ

For the reaction: 2 H3PO4 + 3 Ca(OH)2 → Ca3(PO4)2 + 6 H2O If you have 59.8 mL of 1.60 M phosphoric acid, how many mL of 0.500 M calcium hydroxide do you need to neutralize the acid?

Answers

Answer:

V = 127.57 mL

Explanation:

In this case, we are having an acid base titration, and this, according to the overall reaction:

2H₃PO₄ + 3Ca(OH)₂ -----> Ca₃(PO₄)₂ + 6H₂O

This reaction was neutralized, so, it's a neutralization reaction, therefore, we can use the following expression for neutralization reactions:

n₁ = n₂  (1)

This is because, in the equivalence point, both moles of the reagents are the same. Now we need to do a relation between this and the actual moles that we have according to the overall reaction.

In this case, we have 2 moles of acid reacting with 3 moles of base, so, the equation (1) is re-written like this:

2n₁ = 3n₂   (2)

Knowing this, and that we have values of concentrations and volume, we can write the expression of moles in terms of molarity and volume:

n = M * V    replacing in (2):

2M₁V₁ = 3M₂V₂   From here, we can solve for V₂ which is the volume of the base:

V₂ = 2M₁V₁ / 3M₂   (3)

Now, all we have to do is replace the given values to obtain the volume of the base:

V₂ = 2 * 1.6 * 59.8 / 3 * 0.5

V₂ = 127.57 mL

Answer:

[tex]V_{Ca(OH)_2}=0.287L=287mL[/tex]

Explanation:

Hello,

In this case, given the reaction:

[tex]2 H_3PO_4 + 3 Ca(OH)_2 \rightarrow Ca_3(PO_4)_2 + 6 H_2O[/tex]

We first compute the moles of phosphoric acid that are actually reacting given the volume (must be in litres) and the molarity:

[tex]n_{H_3PO_4 }=1.60\frac{mol}{L}*59.8mL*\frac{1L}{1000mL} =0.0957molH_3PO_4[/tex]

Next, we compute the moles of calcium hydroxide that are reacting by using the 3:2 molar ratio with phosphoric acid:

[tex]n_{Ca(OH)_2}=0.0957molH_3PO_4*\frac{3molCa(OH)_2}{2molH_3PO_4} =0.144molCa(OH)_2[/tex]

Finally, by knowing the 0.500 M of the calcium hydroxide solution we compute the required volume:

[tex]V_{Ca(OH)_2}=\frac{n_{Ca(OH)_2}}{M_{Ca(OH)_2}}=\frac{0.144mol}{0.500\frac{mol}{L} } \\ \\V_{Ca(OH)_2}=0.287L=287mL[/tex]

Best regards.

what does Reproducibility mean? Plz help me

Answers

Answer:

the ability to be reproduced or copied.

Explanation:

Answer:  the ability of an entire experiment or study to be reproduced, either by the researcher or by someone else working independently.

How much faster will Xenon escape out and opening than carbon dioxide gas?

Answers

gas with the smallest amount of molecular weight will effuse the quickest

Which type of plant used light, feathered seeds?
What would a zebra be?
consumer
decomposer
producer

Answers

Answer:

Zebra- consumer

Tiger- consumer

Worm- decomposer

Tree-Producer

Molded bread- decomposer

Plant- producer

Answer:

Type of plant - Dandelion .Zebra is a Consumer .

Explanation:

Dandelion plant produces light and feathery seeds .

Zebra consumes / eats grass so it is a consumer .

Picture of 2010 Todd Abronowitz Gas Laws problems, super fun if you’re in AP chem. Can you help a pre-AP struggling student out please?

Answers

Answer:

1. 0.422 atmospheres

2. 633281.25 Pascals

3. (a) Move up

(b) 868 mmHg

4. 868 mmHg

5. 775 mmHg

6. Partial pressure of He is 0.64 atm.

Partial pressure of oxygen is 1.29 atm.

Partial pressure of N is 2.57 atm.

7. 445.72 torr.

Explanation:

1. To convert 321  torr to atmospheres

1  atmosphere = 760 torr

∴ 1 torr = 1/760 atmospheres

Hence, 321 torr = 321 × 1/760 = 321/760 atmospheres = 0.422 atmospheres

2. To convert 6.25 atmospheres to Pascals, we have;

1 atmosphere = 101325 Pascals

∴ 6.25 atmospheres = 6.25 × 101325 Pascals = 633281.25 Pascals

3. (a) Here we have, given that the value of the pressure on the bottle = 830 mmHg, when the valve is opened, the mercury in the open-end arm will move up because the pressure of the gas inside the flask is more than the pressure on the other side of the open-end arm

(b) After the mercury stops moving the difference between the two columns will be the difference between the two pressures, that is 830 mmHg - 745 mmHg = 85 mmHg

4. From the diagram, it is seen that the differenc beteen the two columns is 123 mm, therefore, the pressure in the flask is 123 mmHg more than the external pressure, hence the pressure of the as in the flask = 745 mmHg + 123 mmHg = 868 mmHg

5. Here we have that the height of the mercury in the open-end is less than the height of the mercury on the arm closer to the flask, therefore, the pressure of the gas in the flask = 825 mmHg - 50 mmHg = 775 mmHg

6. Number of moles of He = 1 mole

Number of moles of oxygen, O = 2 mole

Number of moles of nitrogen, N = 4 mole

From Dalton's law of partial pressure we have that, the total pressure of a given mass of gas is equal to the partial pressure of the individual gases

[tex]That \ is \ \chi _i = \frac{n_i}{n_{total}} \ and \ P_i = \chi_i \cdot P_{total}[/tex]

Hence;

Total number of moles = 1 + 2 + 4 = 7 moles

Mole fraction of He = 1/7

Partial pressure of He = 1/7×4.5 = 0.64 atm.

Mole fraction of oxygen, O = 2/7

Partial pressure of oxygen= 2/7×4.5 = 1.29 atm.

Mole fraction of N = 4/7

Partial pressure of N = 4/7×4.5 = 2.57 atm.

7. From Boyle's law

P₁×V₁ = P₂×V₂

Hence;

P₂ = P₁×V₁/V₂

Where:

P₁ = Initial pressure = 2.57 atm

V₁ = Initial volume =1.57 liters

V₂ = New volume = 6.88 liters

P₂ = New pressure = 2.57×1.57/6.88  = 0.59 atm.

To convert 0.59 atm. to torr, we multiply by 760 thus;

0.59 atm. = 0.59 × 760 torr = 445.72 torr.

Stabiliţi numerele de oxidare ale tuturor elementelor prezente în următoarele substanţe chimice, ţinând cont de principalele reguli de stabilire a NO: ⦁ NaNO3 ⦁ AlPO4 ⦁ CaCO3 ⦁ KMnO4 ⦁ K2Cr2O7 ⦁ HClO4 (acid percloric) ⦁ HClO3 (acid cloric) ⦁ HClO2 (acid cloros) ⦁ HClO (acid hipocloros)

Answers

Answer:

a.

N = +2

O = -2

b.

Na = +1

O = -2

N = +5

c.

O = -2

Al = +3

P = +5

d.

O = -2

Ca = +2

C = +4

e

O = -2

Mn = +7

K = +1

f.

O = -2

K = +1

Cr = +6

g.

O = -2

Cl = +7

Cr = +1

h.

O = -2

H = +1

Cr = +5

i.

O = -2

H = +1

Cr = +3

k.

O = -2

H = +1

Cr = +1

Explanation:

A. NU

Numărul de oxidare a azotului = +2

Numărul de oxidare a oxigenului = -2

b. NaNO₃

Numărul de oxidare de Na = +1

Numărul de oxidare de O = -2

Numărul de oxidare de N = +5

c. AlPO₄

Numărul de oxidare de O = -2

Numărul de oxidare al Al = +3

Numărul de oxidare al P = +5

d. carbonat de calciu

Numărul de oxidare de O = -2

Numărul de oxidare de Ca = +2

Numărul de oxidare de C = +4

e. KMnO₄

Numărul de oxidare de O = -2

Numărul de oxidare al Mn = +7

Numărul de oxidare al lui K = +1

f. K₂Cr₂O₇

Numărul de oxidare de O = -2

Numărul de oxidare al lui K = +1

Numărul de oxidare al Cr = +6

g. HClO₄

Numărul de oxidare de O = -2

Numărul de oxidare al Cl = +7

Numărul de oxidare al Cr = +1

h. HClO₃

Numărul de oxidare de O = -2

Numărul de oxidare al lui H = +1

Numărul de oxidare al Cr = +5

i. HClO₂

Numărul de oxidare de O = -2

Numărul de oxidare al lui H = +1

Numărul de oxidare al Cr = +3

k. HClO

Numărul de oxidare de O = -2

Numărul de oxidare al lui H = +1

Numărul de oxidare al Cr = +1.

Given:
CH4 + 2O2 → CO2 + 2H2O, ΔH = -890 kJ/mol

How much energy is released when 59.7 grams of methane (CH4) reacts with oxygen?

The combustion of 59.7 grams of methane releases ____ kilojoules of energy

Answers

Answer:

The combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

Explanation:

Given;

CH₄ + 2O₂ → CO₂ + 2H₂O, ΔH = -890 kJ/mol

From the combustion reaction above, it can be observed that;

1 mole of methane (CH₄) released 890 kilojoules of energy.

Now, we convert 59.7 grams of methane to moles

CH₄ = 12 + (1x4) = 16 g/mol

59.7 g of CH₄ [tex]= \frac{59.7}{16} = 3.73125 \ moles[/tex]

1 mole of methane (CH₄) released 890 kilojoules of energy

3.73125 moles of methane (CH₄) will release ?

= 3.73125 moles x  -890 kJ/mol

= -3320.81 kJ

Therefore, the combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

Answer:

The combustion will release -3,321 KJ/mol of energy

Explanation:

Which question can be asked to determine if a wave is electromagnetic or mechanical

Answers

Answer: The Answer is

Does it require medium to travel

Explanation:

Answer:

does it require a medium

Explanation:

trust me

How many moles of gold are Cleveland to 1.204×1024 atoms

Answers

Answer:

10

Explanation:

ye

Answer:

2

Explanation:

HELP ME PLEASE 40 POINTS You may select a topic from the list below, or choose your own.

black hole
oort cloud
star types (supergiant, red dwarf, white dwarf)
supernovae
planetary nebulae
Andromeda galaxy
quasar
Use the library and other resource materials to research and understand your topic. Remember that nasa.gov is a web site that has reliable information as well that you may use for your research. Now write a 300-word report on what you have learned in the essay box below.

Answers

Answer:

Do black hole

Explanation:

A gas has a volume of 3.25 liters at 54 C and 231 kPa of pressure. At what temperature will the same gas take up 4.35 liters of space and have a pressure of 168 kPa?

Answers

Answer: 318 K

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 231 kPa

[tex]P_2[/tex] = final pressure of gas = 168 kPa

[tex]V_1[/tex] = initial volume of gas = 3.25 L

[tex]V_2[/tex] = final volume of gas = 4.35 L

[tex]T_1[/tex] = initial temperature of gas = [tex]54^oC=273+54=327K[/tex]

[tex]T_2[/tex] = final temperature of gas = ?

Now put all the given values in the above equation, we get:

[tex]\frac{231\times 3.25}{327}=\frac{168\times 4.35}{T_2}[/tex]

[tex]T_2=318K[/tex]

At 318 K of temperature will the same gas take up 4.35 liters of space and have a pressure of 168 kPa

A solution has a [H3O+] of 1x 10-5 M. What is the [OH-] of the solution? (5 points)
9M
14M
1x 10-'M
1x 10-14M

Answers

Answer:

1x10^–9 M

Explanation:

From the question given,

Concentration of hydronium ion, [H3O+] = 1x10^-5 M.

Concentration of Hydroxide ion, [OH-] =..?

The concentration of the hydroxide ion, [OH-] can be obtained as follow:

[H3O+] x [OH-] = 1x10^–14

1x10^-5 M x [OH-] = 1x10^–14

Divide both side by 1x10^-5

[OH-] = 1x10^–14 / 1x10^-5

[OH-] = 1x10^–9 M

The  [OH⁻] concentration of the solution is  1 * 10⁻⁹M.

What is pH value ?

pH value is the measure of the acidity and alkalinity of a solution , The pH value has the range of 0 to 14, where 0-7 is the range for acid , 7 is for neutral solution , 7-14 is for alkaline solution.

[H3O⁺] = 1* 10⁻⁵ M

We can calculate the value of OH⁻ concentration  by using the formula

[H⁺][OH⁻] = 1* 10⁻¹⁴

1* 10⁻⁵  * [OH⁻] = 1* 10⁻¹⁴

[OH⁻] = 1 * 10⁻⁹

Therefore the  [OH⁻] concentration is  1 * 10⁻⁹M .

To know more about pH value

https://brainly.com/question/1503669

#SPJ5

Several atmospheric gases contribute to global warming: carbon dioxide, methane, and nitrous oxide. Considering this, which choice would do the LEAST to directly reduce atmospheric carbon dioxide.

Answers

Answer:

A

help u and it's A

Explanation:


Ca(OH)2
Name this compound according to IUPAC nomenclature.
A) calcium hydroxide
B) calcum oxide hydride
C) calcium (II) hydroxide
D) calcium (II) oxide hydride

Answers

B I think but not 100% sure
a calcium hydroxide

Chloroform is a commonly used anesthetic with a density of 1.483 g/mL. Determine the volume of chloroform needed to deliver a 9.37 g sample of the anesthetic

Answers

Answer:

The correct answer is 6.32 ml

Explanation:

We have the following data:

Mass : m = 9.37 g

Density : d= 1.483 g/mL

The density a substance is equal to the mass of the substance divided into its volume. So, we calculate the volume (V) of chloroform from the mass and density as follows:

[tex]d=\frac{m}{V}[/tex]   ⇒  [tex]V = \frac{m}{d} = \frac{9.37 g}{1.483 g/ml} = 6.32 ml[/tex]

When does boiling occur?

Answers

Water boils at 100 Degrees Celsius or 212 degrees Fahrenheit

in a titration 20.0 mL of 0.150 M NaOH(aq) Solution exactly neutralize is 24.0 mL of an HCl solution what is the concentration of the HCl solution

Answers

Answer:

0.125

Explanation:

i took a test and got it right choosing this answer hopes this help

can someone Fing answer this PLEASE! NOW
Chemical Reactions Performance Task


Description: A student conducted two different demonstrations in their science class that started with copper chloride (CuCl₂). They have provided you with the following data tables to help you determine if a physical change or chemical reaction occurred during the demonstrations.


Demonstration 1:



Reactants

substances at beginning of reaction

Products

substances at the end of the reaction

Substance

(Chemical Formula)

Copper Chloride

(CuCl₂)

Water

(H₂O)

Copper Chloride

(CuCl₂)

Water

(H₂O)

Properties

Density: 2.51 g/cm³

Melting Point: 100ºC

Boiling Point: 993ºC

Density: 1 g/cm³

Melting Point: 0ºC

Boiling Point: 100ºC

Density: 2.51 g/cm³

Melting Point: 100ºC

Boiling Point: 993ºC

Density: 1 g/cm³

Melting Point: 0ºC

Boiling Point: 100ºC


Based on the patterns (similarities and differences) in the properties of the reactants and products in the table above, is this a physical or chemical reaction? Cite specific evidence from multiple properties in the data table to support your answer. (5pts)

Claim



Evidence



Reasoning





Demonstration 2:



Reactants

substances at beginning of reaction

Products

substances at the end of the reaction

Substance

(Chemical Formula)

Copper Chloride

(CuCl₂)

Iron

(Fe)

Iron Chloride

(FeCl₂)

Copper

(Cu)

Properties

Density: 2.51 g/cm³

Melting Point: 100ºC

Boiling Point: 993ºC

Density: 7.86 g/cm³

Melting Point: 1538ºC

Boiling Point: 2682ºC

Density: 3.16 g/cm³

Melting Point: 677ºC

Boiling Point: 1023ºC

Density: 8.96 g/cm³

Melting Point: 1085ºC

Boiling Point: 2562ºC


Based on the patterns (similarities and differences) in the properties of the reactants and products in the table above, is this a physical or chemical reaction? Cite specific evidence from multiple properties in the table to support your answer. (5pts)

Claim



Evidence



Reasoning





Using the data from Demonstrations 1 and 2, fill out the table below to describe the difference between a physical and chemical reaction in terms of the rearrangement and/or conservation of atoms and molecules. Choose conserved or not conserved for atoms. Choose rearranged or not rearranged for molecules. (4pts)




Physical Changes

Chemical Reactions

Atoms:

(conserved/not conserved)





Molecules

(Rearranged/Not rearranged)

Answers

Answer:

Need to broken down more.

Explanation:

Answer:

its FIND NOT fing

Explanation:

If the following weights have masses of 2, 4, 6 and 8 kg,
respectively, and they are at the same temperature, which one
will transfer more heat if they are all placed in cold water to
cool down? Explain.

Unit is calorimetry

Answers

Answer:

8 kg mass

Explanation:

As we can see in the image the weight of mass 8 kgs has a large surface area as compared to the surface area of other masses. In general, it has been observed that a wide surface area has more surface particle for heat conduction. Hence, the rate of heat transfer is directly proportional to the surface area of heat conducting surface. Thus, the larger the surface area, the faster is the rate of heat conduction.

Hence, weight of mass 8Kg wil transfer heat a fast rate.

Which of the following is the correct definition of conduction?
A.
the transmission of heat across empty space
B.
the electromagnetic radiation from the surface of an object which is due to the object's temperature
C.
the transfer of heat by currents within a liquid or gas
D.
the transmission of heat across matter

Answers

answer would be d the transmission of heat across matter

Answer:

the transmission of heat across matter

Explanation:

Conduction is the transmission of heat across matter. Even though heat flows across matter during conduction, the matter itself does not flow.

Which word describes the amount of matter an object contains?
O altitude
Odensity
O mass
O pressure

Answers

Mass would be the amount of matter an object contains.

HELP PLEASE You may select a topic from the list below, or choosese a topic about our solar system

Answers

Answer:

ok i see it

Explanation:

Answer: the planets, gravity, the galaxies

Explanation:

Write anything you want about it .

For example, there are 8 planets and their names

In a titration how much 0.50 M HCl is needed to neutralize 1 liter of a 0.75 M solution of NaOH?

1.5 L

2.25 L

1.0 L

0.75 L

Answers

Answer:

1.5 L

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

HCl + NaOH —> NaCl + H2O

From the balanced equation above, The mole ratio of the acid (nA) = 1

The mole ratio of the base (nB) = 1

Step 2:

Data obtained from the question. This includes the following:

Molarity of acid (Ma) = 0.5M

Volume of acid (Va) =..?

Volume of base (Vb) = 1L

Molarity of base (Mb) = 0.75M

Step 3:

Determination of the volume of the acid needed for the reaction.

Using the formula:

MaVa/MbVb = nA/nB

The volume of the acid needed for the reaction can be obtained as follow:

0.5 x Va / 0.75 x 1 = 1

Cross multiply

0.5 x Va = 0.75 x 1

Divide both side by 0.5

Va = 0.75 /0.5

Va = 1.5 L

Therefore, the volume of the acid, HCl needed for the reaction is 1.5L

Which of the following statements is NOT true?
A. The corn that we grow today has not changed since prehistoric times.
B. Early humans planted seeds from corn plants with large kernels.
C. It took many generations for corn plants to change.
D. Humans have selectively bred many different types of crops.

Answers

Answer:

A. Corn has changed over time due to selective breeding.

Hope this helps :)

Can someone help me with this?

Answers

Answer:

D) condensing C) boiling

A student following the reaction seen here calculated a theoretical yield of 38.3g C₆H₅Cl but when he did the experiment in the lab he actually produced 36.8 g of C₆H₅Cl. What is the percent yield? *

Answers

Answer:

96.1 %

Explanation:

Which teacher do you have lol

Where is the blood first filtered?

W
X
Y
Z

Answers

Answer:

in w

Explanation:

first blood enter renal artery which enter glomerous( where blood is filtrated) and then to Bowman carpusle(take the filtrated blood)

and then to proximal tubular(absorbed salt) and then to loop of hanle (y)(absorb water) and then to distal tubule then to ureter (z) and then to renal vein(x)(to go to urinary bladder)

The concentration of hydroxide ions is greater than the concentration of hydronium ions for acidic solution. True or false.

Answers

Answer: False

Explanation:

An acid is defined as the substance which looses hydrogen ion or hydronium ions when dissolved in water.

A base is defined as the substance which looses hydroxide ions when dissolved in water.

If the solution has higher hydronium ion concentration as compared to the hydroxide ion concentration, then the pH will be low and the solution will be acidic.

If the solution has low hydronium ion concentration as compared to the hydroxide ion concentration then the pH will be high and the solution will be basic.

Other Questions
Owen runs a delivery business and currently employs three drivers. He owns three vans that employees use to make deliveries, but he is considering hiring a fourth driver. If he hires a fourth driver, he can schedule breaks and lunch hours so that all three vans are in constant use, allowing him to increase deliveries per day from 60 to 75. It will cost an additional $75 per day to hire the fourth driver. The marginal cost per delivery of increasing output beyond 60 deliveries per day: chemistry neutralization Please help me I will give out the brain thing and extra points The Authorship Question of ShakespeareDanielle Toomer(1) Shakespeare the Bard, is known as the greatest English poet ever. (2) But ever since the great man's death, whispers have arisen about whether or not "the man from Stratford" wrote the plays attributed to the man called Shakespeare. (3) Many other people have been suggested as the "true author" of the unforgettable dramas: Christopher Marlowe, the Earl of Southhampton, and even Queen Elizabeth herself! (4) But the debate over authorship has never been fully resolved. (5) The plays of Shakespeare, the Swan of the Avon still remain popular--no matter who wrote them!How should sentence (1) be changed?A)Remove the word everB)Change is to areC)Add a colon after the word ShakespeareD)Add a comma after the word Shakespeare Amanda is a college student who just transferred to a new university to start the spring semester. She sees a flier for a student-run religious club and decides to attend the next meeting with the hopes of making some new friends. When she arrives, it soon becomes clear that the people there already know each other well, and that she is the only new face in the crowd. She plans to attend a few more meetings before she decides to make this club a routine part of her weekly schedule. (There are two parts to this question) A. How could each of the following help play a role in Amanda's desire for new friends? Use different examples for each concept. Be sure to relate your example to the situation. 1. Schachter two-factor theory2. The mere exposure effect3. Locus of controlB. How could each of the following hinder Amanda's desire for new friends? Use a different example for each concept. Be sure to relate your example to the situation. 1. Regression2. Circadian rhythm3. In-group bias. 56. Respond in a paragraph with complete sentences.(16 pointChoose one literary selection from this semester in which you think the setting has a greatimpact on the work. In a full paragraph, name the work, describe the setting, and explain whyit is so important to the overall story or poem.*I REALLY NEED HELP ON THIS QUESTION PLEASE HELP ME* :( The coordinates for a quadrilateral are A(3, 5), B(7, 5), C(8, 3) and D(4, 3). Determine the type of quadrilateral.Group of answer choicesRectangleParallelogramSquareRhombus Brandon brown chapter 9 ? The following units of an item were available for sale during the year: Beginning inventory8,100 units at $180 Sale5,300 units at $300 First purchase15,000 units at $185 Sale13,000 units at $300 Second purchase16,000 units at $192 Sale14,000 units at $300 The firm uses the perpetual inventory system, and there are 6,800 units of the item on hand at the end of the year. a. What is the total cost of the ending inventory according to FIFO? $ b. What is the total cost of the ending inventory according to LIFO? The point A(-2, 3) is translated using T: (x,y) = (x + 4, y + 2).What is the distance from A to A'?VO2/252/5 Let's say you are writing a summary of the news story. Which is most important to put in the summary?A The night sky above the Midwest is usually dark.B Some places in space are still unknown to scientists.C A meteor appeared over the Midwest in April 2010.D An unshelled peanut weighs 0.3 pounds. How many days in a year ? 62,394 to the nearest hundred A rebel is someone who...a.) fights for their country.b.) tries to find peaceful solutions. xc.)fights against the government.d.)runs for government office.x On the video Alike short film What do you think is the message this film is trying to portray? At A-1 Truck Dealership, a customer can order a red, turquoise, or green truck. The truck can have leather or cloth seats. A customer can also choose a black, tan, or grey interior color. From how many possible trucks can a customer choose? * Jos Mart empez a escribir cartas y poemas sobre el tema de la libertad y la justicia.TrueFalse How did explorers impact trade, the spread of religion, and technology throughout the world during the age of exploration? which of the following is/are sometimes included as an additional macronutrient resulting in a 3 in 1 formulation A. Lipids emulsionB. Amino acids C. Vitamins D. Dextrose Find the area. Will mark brainliest. 7.Professor Chauvet has 6 snake plants at her home. Two are small, two are medium, and two are large. She wants to see if the plants will grow taller if they are given water from her fish tank. She puts all the plants in her bay window at home so they receive equal amounts of sunlight. For the two small plants, she flips a coin to determine which one will get the water from the fish tank. She does the same for the medium, and large plants. She waters them this way weekly for 10 weeks. After 10 weeks she compares the difference in growth for each set of 2 plants. Which of the following is the best description of the method she is using for data collection?(A)An observational study(B)A double-blind observational study(C)An experiment with a completely randomized design(D)An experiment with a randomized block design(E)An experiment with a matched-pairs design