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ipn [44]
3 years ago
11

GIVING BRAINLIEST FIVE STARS AND HEART!

Chemistry
1 answer:
iren [92.7K]3 years ago
4 0

Explanation:

When an object is at rest, the body is said to possess potential energy. In another case, when the object is in motion, then it is said to possess kinetic energy. Potential energy tends to affect the object within the environment if and only when it gets transformed to other kinds of energy.

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A chemist determined by measurement that 0.0450 moles of iron participated in a chemical reaction. Calculate the mass of iron th
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Answer:

2.51 g

Explanation:

The mass of 1 mol of iron is 55.84 g.

For 0.0450 mol,

\text{Mass of Fe} = \text{0.0450 mol} \times \dfrac{\text{55.84 g Fe}}{\text{1 mol Fe}} = \textbf{2.51 g Fe}

5 0
3 years ago
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Write the following number in Standard (Numeric) Form. 5.8x10-5
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Answer:

the answer of this question is 0.000058

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3 years ago
The temperature of a sample of gas at 8.5 atm and 59.2 °C increases to 140.0 °C. If the
labwork [276]

Answer:

since that's the closest option we have

10.6atm

Explanation:

Since volume is constant

P1/T1 = P2/T1

P1 =8.5atm

T1 = 59.2°C = 332.2k

T2 = 140°C = 413k

P2 = ?

8.5/332.2 = P2/413

0.026 = P2/413

P2 = 0.026 x 413

P2 = 10.74atm

5 0
3 years ago
The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils?
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the answer is body fossils which is B) body

4 0
4 years ago
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3.544g of hydrogen gas contains
Free_Kalibri [48]

Answer:

1.772 mols

Explanation:

Because hydrogen exists as a diatomic molecule in gaseous state, that's (H2), so then it's molecular mass is 1 ×2= 2g/mol.

we can now calculate for the number of moles, so

n=m/Mr

n=3.544/2

n=1.772mols

4 0
3 years ago
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