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yKpoI14uk [10]
2 years ago
9

The theory of _______ of matter states that cannot be created or destoryed

Chemistry
1 answer:
Nostrana [21]2 years ago
7 0

Answer:

mass pic is explanation hope it helps

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When electrons flow through a conductor such as a wire, it is called, "Electricity".

Explanation:

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Which of the following is true of gases?
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Answer:  A. Gases are easily compressed because of the low density.

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How many moles of Na2Cr2O7 contain 14 moles of oxygen atoms?
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The number of moles of sodium dichromate from the number of moles of oxygen atoms can be determined through stoichiometry. Using the molecular formula of the compound, Na2Cr2O7, 1 mole of the compound contains 7 moles of oxygen. Hence, 14 moles O2*(1 mole Na2Cr2O7/ 7 mole O2) is equal to 2 moles <span>Na2Cr2O7.</span>
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3 years ago
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What is the final concentration if a 50.0 mL sample of a 15% H2SO4 solution is added to water to give a final volume of 250 mL?
Anna007 [38]

Answer:

The answer to your question is 3% H2SO4 solution

Explanation:

Data

Concentration 2 = C₂ = ?

Concentration 1 = C₁ = 15 %

Volume 1 = V₁ = 50 ml

Volume 2 = V₂ = 250 ml

Formula

             C₁V₁  = C₂V₂

Solve for C₂

             C₂ = C₁V₁ / V₂

Substitution

             C₂ = (15)(50) / 250

Simplification and result

             C₂  = 3 %

4 0
3 years ago
⚠️⚠️ ⚠️⚠️
Anastaziya [24]

Answer/Explanation: A weight lifted vertically to acquire gravitational potential energy. A weight lifted vertically to acquire gravitational potential energy. If the force were to be removed, the object would fall back down to the ground and the gravitational potential energy would be transferred to kinetic energy of the falling object.

3 0
2 years ago
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