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3 years ago

What are the two main types of energy?

Chemistry

2 answers:

Sergio [31]3 years ago

7 0

kinetic and potential

Harlamova29_29 [7]3 years ago

3 0

Kinetic and potential energy, are the two main types of energy! Hope this helps:)

You might be interested in

How is a mixture such as a plate of pasta different from a mixture such as air

stealth61 [152]

Answer:

Well there is a lot of differences between the two. Its called homogeneous and Heterogeneous mixtures. Homogeneous mixtures are all the substances are evenly distributed throughout the mixture (salt water, air, blood). Heterogeneous mixtures are the substances that are not evenly distributed (chocolate chip cookies, pizza, rocks). So Pasta with sauce and meatballs is heterogeneous and air is homogeneous

HOPE THIS HELPS HAVE A GREAT DAY!!~

Explanation:

6 0

2 years ago

What is the pH of a buffer solution upon mixing 15.0 mL of 0.40 M HCl and 20.0 mL of 0.50 M NH? Kb (NH3) = 1.8 x 10 E. 7.00 A. 9

vladimir2022 [97]

Answer: The pH of resulting solution is 9.08

Explanation:

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}$ ........(1)

For HCl:

Molarity of HCl = 0.40 M

Volume of solution = 15.0 mL

Putting values in equation 1, we get:

$0.40M=\frac{\text{Moles of HCl}\times 1000}{15.0mL}\\\\\text{Moles of HCl}=0.006mol$

For ammonia:

Molarity of ammonia = 0.50 M

Volume of solution = 20.0 mL

Putting values in equation 1, we get:

$0.50M=\frac{\text{Moles of ammonia}\times 1000}{20.0mL}\\\\\text{Moles of ammonia}=0.01mol$

The chemical reaction for hydrochloric acid and ammonia follows the equation:

$HCl+NH_3\rightarrow NH_4Cl$

Initial: 0.006 0.01

Final: - 0.004 0.006

Volume of solution = 15.0 + 20.0 = 35.0 mL = 0.035 L (Conversion factor: 1 L = 1000 mL)

To calculate the pOH of basic buffer, we use the equation given by Henderson Hasselbalch:

$pOH=pK_b+\log(\frac{[salt]}{[base]})$

$pOH=pK_b+\log(\frac{[NH_4Cl]}{[NH_3]})$

We are given:

$pK_b$ = negative logarithm of base dissociation constant of ammonia = $-\log (1.8\times 10^{-5})=4.74$

$[NH_4Cl]=\frac{0.006}{0.035}$

$[NH_3]=\frac{0.004}{0.035}$

pOH = ?

Putting values in above equation, we get:

$pOH=4.74+\log(\frac{0.006/0.035}{0.004/0.035})\\\\pOH=4.92$

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

$pH+pOH=14\\pH=14-4.92=9.08$

Hence, the pH of the solution is 9.08

3 0

4 years ago

Where are the volcano located

Elza [17]

Answer:

In the ring of fire

Hope this acc helps

3 0

3 years ago

What is one condition that is necessary for a hurricane to form?

zhuklara [117]

Explanation:

Thunderstorms, warm ocean water and light wind are needed for a hurricane to form (A). Once formed, a hurricane consists of huge rotating rain bands with a center of clear skies called the eye which is surrounded by the fast winds of the eyewall (B).

8 0

3 years ago

Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each name.

jeka57 [31]

The name of the compound Na2SO4 is:
nitrogen sulfite
nitrogen sulfide
sodium sulfate
sodium sulfite
nickel sulfide

sodium sulfate

The formula of calcium phosphate is:
CaPO4
CaP
Ca3(PO4)2
Ca4(PO4)3
Ca(PO4)2

Ca3(PO4)2

The formula for calcium acetate is:
Ca2C2H3O2
CaC2O4
Ca(C2O4)2
Ca(C2H3O2)2
CaC2H3O2

Ca(C2H3O2)2

5 0

3 years ago