Ask question

Ask question

All categories

3 years ago

9

The form of energy that holds atomic nuclei together is called _____. molecular energy chemical energy nuclear energy electromag

netic energy

2 answers:

expeople1 [14]3 years ago

7 0

The answer is nuclear energy.

Sergio [31]3 years ago

4 0

Answer:

nuclear energy

Explanation:

You might be interested in

How many grams of ferric oxide will you need to make 1.5 M solution?

Masteriza [31]

Answer:Stoichiometry calculations are about calculating the amounts of substances that react and form in a

chemical reaction. For example, based on the balanced chemical equation, we can calculate the

amount of a product substance that will form if we begin with a specific amount of one or more

reactants. Or, you may have a target amount of product to prepare. How much starting compounds

are needed to prepare this amount? These are practical calculations that are done frequently by

chemists.

The Method

For practically all stoichiometry problems, we want to use the. . . .

Fabulous Four Steps

Step 1: Write the balanced chemical equation for the reaction.

Step 2: Calculate the moles of "given" substance. If more than one reactant amount is given,

calculate the moles of each to determine which is the limiting reactant.

Step 3: Calculate the moles of "desired" substance from your answer in Step 2 using the

coefficients from the balanced chemical equation. If more than one reactant was given originally, you

can calculate the moles of product twice, based on the moles of each reactant. The reactant that

gives the smaller moles of product is the limiting reactant. Keep this answer for Step 4.

Step 4: Convert your answer in Step 3 to the units the problem asks for. Usually this is grams,

but it could be volume (for gases or liquid solutions) or concentration (such as molarity, for solutions).

Again in brief:

1. Balanced reaction

2. Moles of "given" substance(s)

3. Moles of "desired" substance such as a product

4. Convert Step 3 answer to the units asked fo

Explanation:

3 0

3 years ago

Why does the border between light and dark on the Moon change location?

Stella [2.4K]

The moon goes through it’s different phases so during these it changes it’s form from either a full moon to a waning crescent (the smallest of them all). if i’m wrong i’m sorry

3 0

3 years ago

Read 2 more answers

Which of the following statements about horizons is true?

Nana76 [90]

C is the answer. All soils have completely different horizon patterns.

4 0

4 years ago

Read 2 more answers

A sample of iron with a mass of 50.0 grams absorbs 2500 J of thermal energy. How much would the temperature of this sample chang

ella [17]

Temperature change would be 112.6° C.

<u>Explanation:</u>

We can find the amount or heat absorbed or emitted during any reaction by finding the product of their mass, specific heat, and change in temperature of the metal.

Mass of the iron, m = 50.0 g

Amount of heat absorbed, q = 2500 J

Change in temperature, ΔT = ?

Specific heat of Iron, C = 0.444 J/g °C

$\boldsymbol{q}=\boldsymbol{m} \times \boldsymbol{C} \times \boldsymbol{\Delta} \mathbf{T}$

Plugin the values and rearrange the equation to get the change in temperature as,

$\Delta \mathbf{T}=\frac{\mathbf{q}}{c \times m}$

$\Delta \mathrm{T}=\frac{2500 \mathrm{J}}{0.444 \frac{J}{\mathrm{g}^{\circ} \mathrm{C}} \times 50 \mathrm{g}}=112.6^{\circ} \mathrm{C}$

6 0

3 years ago

The molar mass of carbon dioxide (CO2) is 44.01 g/mol. The molar mass of water (H2O) is 18.01 g/mol. A reaction uses 528 g of CO

Black_prince [1.1K]

CO₂ + H₂O -------> H₂CO₃

moles of CO₂ = $\frac{MASS of Carbon}{ MOLAR MASS}$

= $\frac{528 g}{44.01 g / mol}$

= 11.997 mol

mole ratio of CO₂ : H₂O =   1 : 1

  ∴ moles of H₂O = (`11.997 mol ) * 1
= 11.997 mol
   ≈ 12 mol

6 0

3 years ago