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Rina8888 [55]
4 years ago
13

2. Which of these objects has kinetic energy?

Chemistry
2 answers:
marishachu [46]4 years ago
3 0

Answer:

a. A ball moving through the air.

Explanation:

The ball has momentum which is a form of kinetic energy.

Ganezh [65]4 years ago
3 0
The answer is a because it has momentum
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The radius of a hydrogen atom is 37pm and its mass is 1.67*10^-24g.
kirill115 [55]

Answer:

V = 4/3 * 3.1416 * (37x10-10)3

V = 2.12x10-25 cm3

d = m/V

d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3

The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

6 0
3 years ago
Read 2 more answers
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yKpoI14uk [10]
Long wave I think is the correct answer
7 0
3 years ago
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?
mamaluj [8]
The answer is (2) 0.480M.
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5 0
3 years ago
Calculate the molarity of a solution containing 9.25 mol H2SO4 in 2.75 L of solution.
Akimi4 [234]

Answer:

THE MOLARITY OF THE SOLUTION IS 3.36 MOLE/L

Explanation:

First we must understand what molarity is.

Molarity is the number of mole per unit volume of solution. In this question, 9.25 mole of H2SO4 was given in 2.75 L of solution.

Molarity is written in mole per dm3 or L.

So we can calculate the molarity:

9.25  ole of H2SO4 = 2.75 L of solution

The number of mole in 1 L of solution will be:

= 9.25 mole / 2.75 L

= 3.3636 mole/ L

In conclusion, the molarity of the solution is approximately 3.36 mole/L

8 0
4 years ago
Phosphorous acid, H 3 PO 3 ( aq ) , is a diprotic oxyacid that is an important compound in industry and agriculture. p K a1 p K
Novay_Z [31]

Answer:

a. 0.60

b. 1.30

c. 4.00

d. 6.70

e. 10.20

Explanation:

The 3 attached files shows a comprehensive solution                                                            

to the problems with answers highlighted as above                                                          

4 0
3 years ago
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