Answer:
Newton's law also states that the strength of gravity between any two objects depends on two factors: the masses of the objects and the distance between them.
Explanation:
Answer is A.
Plz mrk me brainliest.Katie's teacher has asked her to identify an unknown
substance. She thinks about the properties of matter that will
help her identify the substance. She knows it is a colorless
liquid. She thinks it may be water but knows there are many
colorless liquids that are not water.
Which of the following statements would inform Katie that the
liquid is NOT water?
a The liquid freezes at 32°C.
b The liquid is clear.
C The liquid boils at 100°C.
d The volume of the sample is 100 ml.
Subtract to find the temperature changes
for the water and the metal.
I
°C
AT (water) =
AT (metal) = -1
°C
Copper
Answer In picture
Answer:
1.9
Then
-75.4 C
Explanation:
In tHe PiCtuRe
(3.6 x 104) / (4 x 10-6)
Answer:
930 pls mark me branilest
Answer:
11.0117647
Explanation:
What is the formula of the compound in which the atom combining ratios are:
magnesium : bromine = 1:2
Enter elements in the order given:
Please help me with this
Answer:MgBr2
Explanation:
A galvanic cell is constructed of one half cell in which a silver wire is placed into a 1.00 Maqueous solution of silver nitrate and the other half cell is made of a zinc wire in a 1.00 M aqueous solution of zinc nitrate. calculate gibbs free energy
Answer:
https://www.plps-k12.org/site/handlers/filedownload.ashx?moduleinstanceid=2482&dataid=3257&FileName=Ch%2017%20Electrochemistry%20Practice%20Problems%20I%20-%20key.pdf
Explanation: This is all the answers just go to this link to help is a bunch of pages to help and with answers on them too! Can I get brianliest plz
why the nucleus is the densest part of atom
Answer:
it is where the dna is
Explanation:
Difference between heavy chemicals and fine chemicals
Answer:
Fine chemicals are used as starting materials for specialty chemicals, particularly pharmaceuticals, biopharmaceuticals and agrochemicals. ... The term "fine chemicals" is used in distinction to "heavy chemicals", which are produced and handled in large lots and are often in a crude state.
Explanation:
What does it mean if your hypothesis is wrong? What do you do?
Answer:
The purpose of a science experiment is to prove or deny a hypothesis. One's experiment is not a failure if the results do not match the hypothesis. When the data does not support the hypothesis, record it as though it did.
Answer:
when the findings do not aligh with the hypothesis
Salt solution is homogeneous mixture.Give reason
Answer:
because mixed particles are invisible in this mixture.
Latanya brown is a nine-year old african american who is hospitalized with acute sickle cell crisis. the pharmacist is preparing intravenous fluids for this patient. she adds 2 grams of potassium chloride to 1 l of d5w/1/2 normal saline. what is the estimated osmolarity per liter (mosm/l) of this solution assuming the final volume is 1L (mw of sodium =23, potassium=39, chloride=35.5, and dextrose is 198)?
Answer:nb mhvj
Explanation:
hvvmjhv
Determine the mass in grams of 2.25 × 10²¹ atoms of copper.
Answer:
0.373 g
hope i helped yaWhen copper is changed to copper(II) nitrate by the nitric acid, it is an example of a(n) ______-_______ reaction. (two words, include the hyphen with no spaces)
Answer:
oxidation- reduction
Explanation:
where gaining electronic reduces one element and losing them oxidize the other nitric acid is not only strong it is also a oxidizing agent
Oxidize: copper = Cu+2When copper is changed to copper(II) nitrate by the nitric acid, it is an example of an oxidation-reduction.
What is molecule?
Molecule is defined as number of atoms combined together, that shows the most smaller chemical compound's fundamental unit that participate in chemical reaction. In the combination of atoms attractive forces play a vital role and it helps to bound the atoms by a chemical bond.
Liquid consist of small range of order and the reason behind this is intermolecular attractive force which is very strong and due to this reason molecules are packed together tightly. Due to presence of high kinetic energy the molecules present in the liquid move rapidly and fastly with one another.
Water is considered to be the simpler molecule and it consist of hydrogen and oxygen atom bounded together and due to the reason of high electronegativity of the oxygen's atom the bonds present are polar as well as covalent. Due to presence of high kinetic energy the molecules present in the liquid move rapidly and fastly with one another.
Therefore, When copper is changed to copper(II) nitrate by the nitric acid, it is an example of an oxidation-reduction.
Learn more about chemical and physical property here:
https://brainly.com/question/1935242
#SPJ2
A cylinder fitted with a movable piston and filled with a gas has a volume of 188.5mL at 26.7 °C when the applied pressure is 755.2 torr. The temperature of the oil bath surrounding the cylinder was increased to 165.2 °C, and the load on the piston was changed. Careful measurement now gave a value of 210.5mL for the volume. What was the final pressure in the system, in torr? Select one:
O a. 715.5 tor O b. 576.9 torr Oc. 988 6 torr O d. 1233 torr 462.6 tor
Answer:
C
Explanation:
To find the new pressure, we will use this formula: P₁V₁/T₁ = P₂V₂/T₂
P₁ = Original pressure (755.2)
V₁ = Original volume (188.5)
T₁ = Original temperature in kelvins (26.7 + 273.15 = 299.85)
P₂ = Final Volume (?)
V₂ = Final volume (210.5)
T₂ = Final temperature in kelvins (165.2 + 273.15 = 438.35)
Here is our equation
(755.2)(188.5)/(299.85) = (210.5)P₂/(438.35)
Hopefully, you have a calculator handy because this equation will end up looking like this:
474.75471 = (0.48021)P₂
Divide both sides by the coefficient
474.75471/0.48021 = (0.48021)P₂/0.48021
P₂ = 988.64
The factor in an experiment that is being tested and measured is known as the:
Answer:
The dependant variable
Explanation:
The dependent variable is the factor that is being tested and measured in an experiment.
Anyone know the answer ?
The correct answer is: Avogadro
The Avogadro constant (NA or L) is the proportionality factor that relates the number of constituent particles (usually molecules, atoms or ions) in a sample with the amount of substance in that sample. Its SI unit is the reciprocal mole, and it is defined as NA = 6.02214076×1023 mol−1.
The answer is Avogadro.
Explanation:
Here are the examples :
The mass of a single carbon-12 atom has been found to be 1.992×10^-23 g using a mass spectrometer. The number of atoms in exactly one mole of 12C is 6.02×10^23. This can be shown by the following calculation.
Na = Mass per mole of 12C ÷ Mass of one atom of 12C
= 12g/mol ÷ 1.992×10^-23
= 6.02 × 10^23 mol^-1
Thus one mole of any substance contains 6.02×10^23 particles. This number is called the Avogadro constant.
So that 12g of the element carbon , 1 g of the element hydrogen and 32g of the element sulphur contains 6.02×10^23 atoms even though the element carbon exist as atoms, and Hydrogen and sulphur exist as molecules.
I hope it can help you
We are driving to Orlando. The sign says
that it is 145 kilometers to Orlando.
How many meters is it to Orlando?
A: 0.145
B: 145,000
C: 14.5
D: 14,500
Answer:
b
Explanation:
there is 1000m in 1 km so the ans is literally just 145x1000 m which is 145000m
Answer:
B! 145,000
Explanation:
your welcome love!
Using the ruler, what is the value of A considering significant
figures?
Answer:
13.7 cm
Explanation:
If the number is between two whole numbers then that means it is going to be a decimal, how to determine the decimal is by how many ticks/lines are between it, so if you count from 13 cm and count each line as 1 you get to the number 7 and since that number is between the whole number it becomes 13.7
. Why is it necessary to carry out melting point on a finely powdered sampLe
1. . Are these physical or chemical changes? a) slicing cheese
b) acid reacting with baking soda to make carbon dioxide
c) emptying a gas cylinder of air
d) cooking eggs
Answer:
physical change
slicing cheese
acid with baking soda
.......cookoing eggs
Please help me please find the answer
Please do this
Please do this
Plzz
Total distance=60m+40m=100m
Total Time=6+4=10s
#a
[tex]\boxed{\sf Speed=\dfrac{Distance}{Time}}[/tex]
[tex]\\ \sf\longmapsto Speed=\dfrac{100}{10}[/tex]
[tex]\\ \sf\longmapsto 10m/s[/tex]
#b
Displacement=AC=60m
[tex]\\ \sf\longmapsto Velocity=\dfrac{Displacement}{Time}[/tex]
[tex]\\ \sf\longmapsto Velocity=\dfrac{60}{10}[/tex]
[tex]\\ \sf\longmapsto 6m/s[/tex]
#C
Distance=60mtime=5s[tex]\\ \sf\longmapsto Velocity=\dfrac{60}{5}=12m/s[/tex]
#d
The velocity of A to C is greater than Velocity from C to A
A student was adding NaOH to two different acid solutions, HCl and HF, until a pH of 7 was reached in both solutions. The acids had the same initial volume, and both had an initial pH of 4.5. Which statement is true regarding the amount of NaOH added to each acid?
You are starting a new item and after reading the first part you realize you have no idea how to go about answering it. What should you do
1) Guess randomly and hope for some useful feedback.
2) Request the solution immediately.
3) Use the available hints.
Answer: 3
Explanation: You may not always get feedback that would be helpful and requesting the answer would be cheating
Differentiate between. Melting and freezing point. Elements and compounds . Evaporation and condensation. Compound and mixture.
Answer:
Melting poing is the temperature at which a solid changes to liquid under atmospheric pressure. Freezing point is the temperature at which liquid changes to solid under atmospheric pressure.
Elements are substances that are made from one type of atom. An element cannot be broken down into any other substance. ... Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.
Compounds are formed because of chemical bonding between two elements. Mixtures are formed when substances are physically mixed with one another. Compounds are basically of three kinds : Ionic, metallic and covalent
Which of the following symbolic representations of matter signifies a mixture of elements?
Answer:
[tex]{ \sf{A \: and \: C \: \: only }}[/tex]
1.3499999995 rounded to three significant figures.
After rounding off to three significant figures :
[tex] \boxed{ \boxed{1.35}}[/tex]What is the product of the unbalanced combustion reaction below?
C3H2(g) + O2(g) →
The Periodic Table
A. 04Hg(s) + C(s)
B. C(s) + H2(g) + O2(g)
C. CO2(g) + H2O(g)
D. C3H802(s)
Describe what each letter and number
means in the chemical formula below.
C.H₂O
Answer: c is carbon h is hydrogen with the 2 means 2 hydrogen and o is oxygen
In conclusion alphabets represent elements and numbers represent how many elements
Which statement describes a physical property of steel? O A. Steel is formed from an alloy of iron and carbon. O B. Steel has a density of 8050 kg/m3. O C. Steel is oxidized by air to form rust. O D. Steel reacts with sulfuric acid to form hydrogen gas.
Answer:
A
Explanation:
I’m so confused somebody help lol
Answer:
lol☺️☺️☺️☺️☺️☺️☺️☺️
Who believed and tested his idea that microorganisms are carried through the air?
