Answer:
Gas pressure is caused when gas particles hit the walls of their container. The more often the particles hit the walls, and the faster they are moving when they do this, the higher the pressure. This is why the pressure in a tyre or balloon goes up when more air is pumped in.
Evaluate the model. Select the statement that does NOT accurately identify the structures labeled in the picture.
Question 1 options:
DNA is found in C, the nucleus.
DNA is organized into chromosomes, D.
Genes, G, are segments of chromosomes that carry traits.
Genes are made of small segments of DNA, F, that code for particular traits.
Question 2 (0.4 points)
Chloroplasts and mitochondria are both involved in energy conversion in cells. Select the other similarity they share.
Question 2 options:
contain DNA
contain thylakoids
found in ALL cells
not surrounded by a membrane
Question 3 (0.4 points)
Plant and animal cells are both eukaryotic. Using the model, identify the similarities between the two cells.
Question 3 options:
Both have a plasma membrane, ribosomes, mitochondria, and centrioles.
Both have a plasma membrane, ribosomes, mitochondria, and golgi apparatus.
Both have a cell wall, ribosomes, mitochondria, and endoplasmic reticulum.
Both have a mitochondria, nucleus, endoplasmic reticulum, and chloroplasts.
Question 4 (0.4 points)
What is the chemical symbol for Nitrogen?
Question 4 options:
N
NI
Ne
Ni
Question 5 (0.4 points)
The shoes are green, a size 8, have white laces, made out of cotton, and have a rubber sole. The description given is a list of ___________ properities of the shoes.
Question 5 options:
chemical
mechanical
physical
structural
Answer:
#1 Is a
Explanation:
imagine you find a bowl filled with clear liquid in your kitchen list three liquids it might be
Answer: Three liquids that could fill a bowl with clear liquid in your kitchen could be alcohol, dish soap, juice (without pectin or pulp), sports drinks, and water (carbonated, coconut, flavored, or plain).
How to find out how many neutrons an isotope has
Answer:
To find the number of neutrons in an isotope, subtract the number of protons from the atomic mass of the isotope. The atomic number of the element equals the number of protons.
Natural gas is mostly methane, a substance that boils at a temperature of 109 K
. What is its boiling point in °C
and °F?
Kelvin is the absolute unit of temperature. Temperature values can be converted from one unit to another using conversion factors.
Given that;
[tex]T^oc =[/tex] temperature in °C
T(K) = temperature in kelvin
[tex]T^oc + 273 = T(K)\\T^oc = T(K) - 273\\T^oc = 109 K - 273 \\T^oc = -164^oc[/tex]
To convert from °C to °F
[tex]\frac{9}{5} ^oC = ^oF - 32[/tex]
°F = 9/5 * (-164 °C) + 32
= -263.2 °F
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write the symptoms of Tuberculosis
Answer:
Hi, There! Your Answer is Below!
Coughing for three or more weeks.
Coughing up blood or mucus.
Chest pain, or pain with breathing or coughing.
Explanation:
Tuberculosis (TB) is a disease caused by germs that are spread from person to person through the air. TB usually affects the lungs, but it can also affect other parts of the body, such as the brain, the kidneys, or the spine. A person with TB can die if they do not get treatment.
CH3NH2+ H2N-CH2-COOH
CH3NH2+ Alanin
Answer:
i don't understand
Explanation:
Ii don't understand
Two students prepare lab reports one for a chemistry class and the other for a biology class which of the following items will both reports contain!Helpppp
Answer:
the results of an investigation thank me later
Explanation:
How many grams of H2O will be produced by 58.2L of CH4 at STP?
Answer:
112 L O2.
Explanation:
Explanation:
CH4(g)+2O2(g)=CO2(g)+2H2O. 58.2l/22.4l=2.60moles CH4*2=5.20 moles H2O
What is the volume of the liquid in the graduated cylinder in mL?
what is meant by Orion? for grade 10
Answer:
[Latin (genitive Orionis)] : a constellation on the equator east of Taurus represented on charts by the figure of a hunter with belt and sword. 2 : a giant hunter slain by Artemis in Greek mythology.
Explanation:
Answer:
a constellation on the equator east of Taurus represented on charts by the figure of a hunter with belt and sword. 2 : a giant hunter slain by Artemis in Greek mythology
Orion constellation is one of the brightest and best known constellations in the night sky. It lies on the celestial equator. Orion has been known since ancient times. The constellation is also known as the Hunter, as it is associated with one in Greek mythology.
what is chemistry...
jab-njko-rzv
Answer:
Chemistry is the science of matter, its properties, structure, changes or reactions and the energy that accompanies these changes.
How do scientists take instruments for measurement up to about 100,000 feet of
elevation?
A.jet aircraft
B.rockets
C.satellites
D.weather balloons
Answer:B
Explanation: i got it right
The scientists use weather balloons to measure up to about 100,000 feet of elevation. The correct option is D.
What is weather balloon?A weather balloon, also known as a sounding balloon, is a balloon that carries instruments aloft to transmit data on atmospheric pressure, temperature, humidity, and wind speed using a small, disposable measuring device known as a radiosonde.
Weather balloons can travel up to 24 miles (39 kilometres) before bursting, and a payload can land (via parachute) up to 75 miles (120 kilometres) away, depending on wind conditions at the launch site.
If the balloon is flexible, it will expand as it rises to lower air pressure altitudes.
To prevent them from popping, weather balloons are only partially filled when released.
Thus, the correct option is D.
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#SPJ2
Bam added 8.91 g of CsCl to 34.29 mL of H2O. Calculate the concentration of Bam's solution in units of g solute/100 g solvent.
MWCsCl= 168.36 g/mol
MWH2O= 18.015 g/mol
Density of water= 0.9975 g/mL
The concentration of the solution is [tex]26.1 g CsCl/100 g H_2O[/tex].
We have 34.29 mL of water, whose density is 0.9975 g/mL. The corresponding mass of water is:
[tex]34.29 mL \times \frac{0.9975g}{mL} = 34.20 g[/tex]
8.91 g of CsCl (solute) are in 34.20 g of water (solvent). We can calculate the concentration of Bam's solution in units of g solute/100 g solvent, using the following expression.
[tex]C = \frac{mass\ solute }{mass\ solvent } \times 100 = \frac{8.91 g }{34.20 g } \times 100 = 26.1 g CsCl/100 g H_2O[/tex]
The concentration of the solution is [tex]26.1 g CsCl/100 g H_2O[/tex].
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Correct answer please i need it before 12:07
Answer:
xenon
Explanation:
Xenon is a non-metal, odorless gas, consist of single atoms, colorless, and 8 valence electrons out of everything else on this list.
What is best illustrated by wattson and crick's ball-and-stick model of DNA
Find the mass of an object with 30 cm3 and has a density of 2 g/cm3 (input number only)
[tex]\begin{gathered} {\underline{\boxed{ \rm{\red{Mass \: = \: Density × Volume}}}}}\end{gathered} [/tex]
Density = 2 g/cm³Volume = 30 cm³[tex]\large\bf\blue{ \diamond} \: \rm \: \: 30 \: \times \: 2 \\ \\ \large\bf\blue{ \diamond} \: \rm \: 60 \: kg[/tex]
Mass of object is 60 kg
Please help, due 7:00 AM
Which area of science is considered the central science?
chemistry
biology
physics
environmental science
Answer:
A. Chemistry.
Explanation:
Why is it important to use chemicals of high quality (purity) and exact(correct) concentrations in experiments?
Answer:
To produce good or targeted result
It is important to use chemicals of high quality and correct concentrations in experiment so that we can obtain the predictable result in an experiment
Purity of substances/chemicals is very important when performing experiments in the laboratories, because it plays an important role in the determination of the chemical properties of substances which will have a direct effect on the result obtained from the experiment. likewise using the correct concentration of reagents
During experiments to obtain the best/predictable result in an experiment it is of best practice to make use of chemicals of high quality and also at the exact(needed) concentrations, that way the predictable result of the experiment will be obtained.
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Consider equal mole samples of dinitrogen monoxide, aluminum nitrate, and potassium cyanide. Arrange these compounds in increasing order of number of nitrogen atoms in each sample.
a. aluminum nitrate
b. potassium cyanide
c. dinitrogen monoxide
Answer:
potassium cyanide, dinitrogen monoxide, aluminum nitrate
Explanation:
Calculate the corresponding weights of liquefied phenol and propylene glycol needed to prepare 24 15 ML - bottles of the following formula for a cood sore topical liquid:
liquefied phenol 0,4 mL
camphor 0,5 g
Benzocaine 2,2 g
Ethanol 65 mL
Propylene glycol 17 mL
Purified water ad 100 mL
Mass/corresponding weight of liquefied phenol = 1.5408 grams
Mass/corresponding weight of propylene glycol = 63.6 grams
Given that :
Total volume of the water bottles = 24 * 15 ml
= 360 ml
Volume of recipe after pure water is added = 100 ml
the number of units required = Total volume of water / volume of recipe
= 360 / 100 = 3.6 units
i) Determine the Mass ( weight ) of liquefied phenol
amount of liquefied phenol = 0.4 ml * 3.6 = 1.44 ml
given that density of liquefied phenol = 1.07 g/ml
∴ mass of liquefied phenol = density * volume
= 1.07 * 1.44 = 1.5408 grams
ii) Mass( weight ) of propylene glycol
amount = 17 * 3.6 = 61.2 ml
density of propylene glycol = 1.04 g/ml
∴ mass of propylene glycol = 61.2 * 1.04 = 63.648 grams
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if the rate of decomposition of ammonia, NH3, at 1150 K is 2.10×10^-6 M/s, what is the rate of production of nitrogen and hydrogen?
Answer:
the rate of decompositibro2o
Explanation:
the rate of decomposition is br02
What kind of science experiment idea should I do?
Answer:
do what you can do not what people tell you to do
Explanation:
Answer:
maybe with baking soda and vinegar
Explanation:
please mark me brainliest pleaseWhen performing an experiment, what situation are close-toed shoes and goggles required.
A - When actively working with chemicals
B - When working with acids, flame or heat
C - When the teacher suggests a lab requires them
Help ASAP, Please And Thank You
Answer: A
Explanation:
I would do all of them but A is the true answer because if you wear like slides the chemical can get on your body and it will be bad so wear sneakers when working with labs.
a graduated cylinder which contains 47.3 mL, weighs 89.62 grams. when a solid submerged in the water, the volume level rises to 55.4 ml and the mass to 123.79 grams. a) what is the volume of the solid? b) what is the mass of the solid? c) what is the density of the solid?
Explanation:
the mass of the object is 123.97-89.62=34.35g
the volume is 55.4-47.3=8.1ml
the density is 34.35/8.1=4.2g/ml
which
each these
A tame the
belong
a cha Cooth
group of Compounds to
acid
can boxylic
B) Catty
*
C2H4
Answer:
please I don't understand the question, rewrite it
Personal eyeglasses provide as much protection as Group of answer choices splash proof chemical goggles a face shield safety glasses none of the above
Answer:
none of the above
Explanation:
Which of the following sets of elements has the same chemical properties?
A) F, CI, Te
B) Li, Na, Ba
C) Cu, Ag, Au
D) U, P, Si
A popular car has a gas tank that holds a maximum of 14.5 gallons of fuel. What is
the size of the tank in liters ?
Answer:
54.883, so rougly about 54.9 liters.
Explanation:
To convert gallons to liters, multiply the amount of gallons by 3.785.
14.5 * 3.785 = 54.883
Taking into account the change of units, the size of the tank is 54.88 liters.
In first place, the rule of three is a tool used to quickly solve problems involving a proportional relationship between two variables.
The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three should be applied.
The rule of three is applied as follows, with A, B and C being known values and D being an unknown value: if A maintains a certain relationship with B, and it is known that C and D have the same relationship, it is possible to calculate the unknown value D using the following expression:
[tex]D=\frac{CxB}{A}[/tex]
In this case, the rule of three can be applied as follows: if 1 gallon is equal to 3.785 liters, 14.5 gallons are equal to how many liters?
[tex]D=\frac{14.5 gallonsx3.785 liters}{1 gallon}[/tex]
Solving:
D= 54.88 liters
In summary, the size of the tank is 54.88 liters.
Learn more with this example:
https://brainly.com/question/17839792?referrer=searchResultshttps://brainly.com/question/14586541?referrer=searchResultsWithout using a calculator, decide which would give a significantly smaller value than 2.71 x 10^-2, which would give a significantly larger value, or which would give essentially the same value.
A. 2.71 x 10^-2 + 1.00 x 10^-6
B. 2.71 x 10^-2 - 1.00 x 10^-6
C 2.71 x 10^-2 x 1.00 x 10^-6
D. 2.71 x 10^-2 / 1.00 x 10^-6
Using the laws of indices, the 2.71 x 10^-2 x 1.00 x 10^-6 would give a significantly smaller value while 2.71 x 10^-2 / 1.00 x 10^-6 will give a significantly larger value.
The laws of indices can be used to solve problems that involves a base and an index.
In this case; if we apply the multiplication law;
[tex]2.71 x 10^-2 x 1.00 x 10^-6 = 2.71 x 10^-8[/tex]
This result is significantly smaller than [tex]2.71 x 10^-2[/tex]
Using the division law;
[tex]2.71 x 10^-2 / 1.00 x 10^-6 = 2.71 x 10^4[/tex]
This result is significantly larger than [tex]2.71 x 10^-2[/tex].
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