1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nataly862011 [7]
2 years ago
5

Help:choose the correct statement ​

Chemistry
2 answers:
Vlad1618 [11]2 years ago
5 0
The answer is c or a I believe. Im leaning more towards c though
Leni [432]2 years ago
5 0

Answer:

I think the answer is b

Explanation:

because she started from A which is potential energy then transformed to motion which is B kinetic energy.

You might be interested in
A 3.301 mass % aqueous solution of potassium hydroxide has a density of 1.05 g/mL. Calculate the molality of the solution. Give
8_murik_8 [283]

<u>Answer:</u> The molality of potassium hydroxide solution is 0.608 m

<u>Explanation:</u>

We are given:

3.301 mass % of potassium hydroxide solution.

This means that 3.301 grams of potassium hydroxide is present in 100 grams of solution

Mass of solvent = Mass of solution - Mass of solute (KOH)

Mass of solvent = (100 - 3.301) g = 96.699 g

To calculate the molality of solution, we use the equation:

\text{Molality}=\frac{m_{solute}\times 1000}{M_{solute}\times W_{solvent}\text{ (in grams})}

Where,

m_{solute} = Given mass of solute (KOH) = 3.301 g

M_{solute} = Molar mass of solute (KOH) = 56.1 g/mol

W_{solvent} = Mass of solvent = 96.699 g

Putting values in above equation, we get:

\text{Molality of KOH}=\frac{3.301\times 1000}{56.1\times 96.699}\\\\\text{Molality of KOH}=0.608m

Hence, the molality of potassium hydroxide solution is 0.608 m

4 0
3 years ago
Please Helpp
jasenka [17]

Answer:

Mitochondria - energy production in plant and animal tissue

Explanation:

The mitochondria is the power house of a cell. it contains adenosine-tri- phosphate or ATP molecules that produce energy through active transport. The mitochondria is responsible for energy production in both plant and animal cells

5 0
2 years ago
Which of the following regarding atmospheric pressure is true?
butalik [34]

Answer:

1- Option (A)

2- Option (A)

Explanation:

The pressure is often defined as the force per unit area. In the atmosphere, the pressure is maximum at the troposphere and is tightly packed near the ground surface. The troposphere is the region where the temperature decreases with the increasing height. The atmospheric pressure at sea level is nearly 1013.2 millibar (mb). The difference in the pressure in this layer causes the wind that is responsible for the occurrence of different types of weather patterns.

The earth and the sun maintains the shortest distance at its Perihelion position, which takes place in the month of January during the winter season in the northern hemisphere. And on the other hand, the earth is far away from the sun at its Aphelion position that takes place in the month of July.

Hence, the correct answers are given above.

7 0
3 years ago
How many CH4 molecules are in 14.8 g of CH4
murzikaleks [220]
1.8021•1024 molecules
8 0
2 years ago
Read 2 more answers
A student neutralized 16.4 milliliters of HCl by adding 12.7 milliliters of 0.620 M KOH. What was the molarity of the HCl acid?
Katen [24]
V ( HCl ) = 16.4 mL / 1000 => 0.0164 L

M( HCl) = ?

V( KOH) = 12.7 mL / 1000 => 0.0127 L

M(KOH) = 0.620 M

Number of moles KOH:

n = M x V

n = 0.620 x 0.0127

n = 0.007874 moles of KOH

number of moles HCl :

<span>HCl + KOH = H2O + KCl
</span>
1 mole HCl ------ 1 mole KOH
<span>? mole HCl--------0.007874 moles KOH
</span>
moles HCl = 0.007874 * 1 / 1

= 0.007874 moles of HCl

M = n / V

M = 0.007874 / <span>0.0164

</span>= 0.480 M

Answer (2)

hope this helps!

4 0
3 years ago
Other questions:
  • How does Earth's rotation axis cause seasons to change?
    6·1 answer
  • A rock is found to contain 2.2 grams of uranium-235, a radioactive isotope. If the rock has undergone 2.75 half-lives, what was
    11·1 answer
  • A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper; the aluminum and the copper are in
    14·1 answer
  • Which is not a product of the fractional distillation of petroleum?
    7·1 answer
  • New substances formed during a chemical reaction are indicated -
    9·1 answer
  • Compare and contrast the sun's rotation to that of the Earth​
    9·1 answer
  • What does centripetal force mean?
    8·1 answer
  • Oxygen has an electronegativity of 3.5, and carbon has an electronegativity of 2.5. How is charge distributed on an oxygen atom
    13·1 answer
  • HELP FASTTT
    6·1 answer
  • If you go to the moon, what will happen to your weight and mass?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!