Energy changes form or is transferred through the action of forces. An example of kinetic energy changing to potential energy is?

A) a bolder sitting on a cliff.

B)a person running around a track.

C) a car being driven up a hill and being parked.

D) a rubber band being stretched and being broken.

Answer:

98 moles of H₂O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2HCl + CaCO₃ —> CaCl₂ + H₂O + CO₂

From the balanced equation above,

1 mole of CaCO₃ reacted to produce 1 mole of H₂O.

Finally, we shall determine the number of mole of H₂O produced by the reaction of 98 moles of CaCO₃. This can be obtained as follow:

From the balanced equation above,

1 mole of CaCO₃ reacted to produce 1 mole of H₂O.

Therefore, 98 moles of CaCO₃ will also react to produce 98 moles of H₂O.

Thus, 98 moles of H₂O were obtained from the reaction.

Answer:

You need 8 electrons to make a stable energy level. If you have any less, it won't make it "happy" per say, and with more it will make it happier but its probably safer to use the 8!

Explanation:

Hope this helps! Plz mark brainliest!

Per my research, it was said that each of the atoms of the carbon has over 6 protons, six neutrons, and 6 protons. Each atom of nitrogen has 7 protons, 7 electrons, and 7 neutrons. The atomic mass of carbon and nitrogen is 12 and 14 respectively. As the number of electrons in the atoms of the two elements is different they have different chemical properties.

As you may know, I did my research and this is what it gave me. I would suppose it is correct since it explains that the carob has over 6 protons and so on. Correct me if I am incorrect and I hope this helped. Have a good one!

Answer:

No, Micah is not correct. Since there are equal numbers of people in each group who drive and who do not drive, the relative frequency for each is 50%. Because the relative frequencies are the same, there is no association   between the variables.

Explanation:

Answer:1.2 picoseconds

Explanation:

Answer:

ANY KENITIC PARTICLE

Particles in both liquids and gases collectively called fluids

Please mark as brainliest

Have a great day, be safe and healthy

Thank u  

XD

the one main difference between a hurricane and a typhoon is the specific location where the storm takes place!!

typhoons and hurricanes can reach sustained winds of an averaging 74 mph.

Answer:

By cooling the gas in the container the partial pressure of the gas will cause the gas to condense.  Imagine water vapor in a bottle if you cool it down it will condense into droplets as the molecules of gas start to slow down to to lower temp

Explanation:

Answer:

reflection

Explanation:

wave reflection is when a sound bounces off something it cannot go through, like echoing

Answer: (C) the same

Here's what I'm thinkin: Since the bucket has a lid, then no water was evaporated thus the mass wouldn't decrease. Also, Jacob didn't add any substances to the bucket of ice, so the mass wouldn't increase. You know? Sorry if this is wrong, but that's how I figured the answer.

Explanation:

Trust Milky. Milky smart.

Answer:

1 mol

Explanation:

Using the general gas law equation as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the provided information in the question;

V = 22.4L

T = 273K

P = 1 atm

R = 0.0821 Latm/molK

n = ?

Using PV = nRT

n = PV/RT

n = (1 × 22.4) ÷ (0.0821 × 273)

n = 22.4 ÷ 22.4

n = 1mol

Answer:

0.3991

Explanation:

so lets get the molar mass of MgCl2

(Mg=24.305 and Cl=35.453) so the molar mass of MgCl2= 24.305+(2*35.453)

molar mass of MgCl2= 95.211

no of moles=38g/95.211=0.3991

Answer:

20m/s

Explanation:

Given that :

Time, t = 2 seconds

Using the relation :

v = u + at

a = g is positive (downward)

V = final velocity

u = initial velocity = 0

v = u + gt

v = 0 + 10(2)

v = 20 m/s

Answer:

hello

Explanation:

answer is oxido nitrate please follow me

Explanation:

magnetization

coz it will still have two pols that is north and south pole

Answer:

6.31x10¹¹s⁻¹ = Frequency

Explanation:

To convert frequency to energy or vice versa we must use the equation:

e = h*f

Where e is energy in joules (4.18x10⁻²²J)

h is Planck's constant (6.626x10⁻³⁴Js)

Replacing:

4.18x10⁻²²J = 6.626x10⁻³⁴Js*f

Boiling water on a stove is an example of thermal energy. Thermal energy is produced when the atoms and molecules in a substance vibrate faster due to a rise in temperature.

Answer: hydrogen and oxygen

Explanation:

Answer:

3,1,2

Explanation:

3 bc u go get liters

1 because ur going from C3H8 to CO2

2 because ur getting CO2 liters

Explanation:

all are a good example of plant tissue but from my side I think it is B.

your well-wisher

Answer:

0.0554 moles of NaCl are produced from the reaction of 1.67*10²² molecules of Na₂CO₃ with excess HCl.

Explanation:

The balanced reaction is:

Na₂CO₃ + 2 HCl → 2 NaCl + CO₂ + H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

On the other hand, Avogadro's Number is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

In this case, you can apply the following rule of three: if 6.023*10²³ molecules of Na₂CO₃ are contained in 1 mole, 1.67*10²² molecules will be contained in how many moles?

[tex]amount of moles=\frac{1.67*10^{22}molecules*1mole }{6.023*10^{23}molecules}[/tex]

amount of moles= 0.0277 moles

In this case, you can apply the following rule of three: if by stoichiometry 1 mole of Na₂CO₃ produces 2 moles of NaCl, 0.0277 moles of Na₂CO₃ will produce how many moles of NaCl?

[tex]amount of moles of NaCl=\frac{0.0277 moles of Na_{2} CO_{3}*2 moles of NaCl }{1 mole of Na_{2} CO_{3}}[/tex]

amount of moles of NaCl= 0.0554 moles

0.0554 moles of NaCl are produced from the reaction of 1.67*10²² molecules of Na₂CO₃ with excess HCl.

Answer:

Nuclear decay is also called radioactive decay, and it occurs in a series of sequential reactions until a stable nucleus is reached. Nuclear reactions release much more energy—orders of magnitude more—than exothermic chemical reactions.

Explanation:

Answer:

A

Explanation:

It has the lowest ionisation energy

Answer:

Beryllium

Explanation:

Answer:

Organelles; role.

Explanation:

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life. A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells. Generally, cells have the ability to independently replicate themselves. In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles with their respective functions in all living organisms such as trees, birds, and bacteria include;

1. Nucleus : it controls all the activities taking place in the cell and the synthesis of proteins.

2. Mitochondria : it provides all the energy required in the cell by transforming energy forms.

3. Lysosomes : they are responsible for absorbing materials and breaking the materials taken in by the cells.

4. Chromosomes : they give sets of instructions for the synthesis of products.

5. Ribosomes : they are involved in the build up of proteins.

6. Endoplasmic Reticulum : this is where the ribosomes perform their tasks.

7. Cytoskeleton : they help to maintain and support the shape of the cells.

8. Vesicles : they ensure proteins are properly transported to the right and exact location.

9. Golgi apparatus : it prepares the protein for export by chemically tagging them.

10. Cell membrane : is the wall of the cell and typically controls what leaves and enters the cell.

Hence, cells are made of many parts, or organelles, that help the cell do its job. Each cell organelle has a specific function, or role.

Answer:

latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.

Explanation:

1.47 J/g°C is the specific heat capacity of a 70 g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C.

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

q = mCpΔT

Solve for Cp —> Cp = q/mΔT

q = -6700 J (negative because it released heat)

m = 70 g

ΔT = Final temp - initial temp = 25 - 90 = -65°C

Cp = (-6700 J) ÷ (70 g)(-65°C)

= 1.47 J/g°C

Hence, 1.47 J/g°C is the specific heat capacity of a 70 g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C.

Learn more about specific heat capacity here:

https://brainly.com/question/16952828

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Answer:

c=-1+x=varible+a=(5)^3

Explanation:

facts