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il63 [147K]
2 years ago
6

What is true about energy?

Chemistry
2 answers:
xeze [42]2 years ago
7 0
The correct answer is option A. Energy cannot be created during an ordinary chemical reaction. There is no such thing as an ordinary chemical reaction. Energy cannot be created or destroyed this is according to the law of conservation of energy. It can only be transformed from one form to another form.
kirill [66]2 years ago
7 0
Among these statements, the correct notion about energy is that energy cannot be created during an ordinary chemical reaction. this follows the law of conservation of mass which states that energy is neither created nor destroyed in any processes.
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Which direction does thermal energy flow in the following diagram? the picture is of someone holding an ice cream cone
Sliva [168]
The answer is B. Heat flows from the hand to the ice cream. The state of equilibrium won't occur for this since the only reactant is heat.
8 0
3 years ago
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When a beverage is “carbonated” what is happening? How does it affect the acidity?
Ksju [112]

Answer:

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What is the enclosure act
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4 0
3 years ago
What element has 81 protons in the nuclei of its atoms?
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7 0
2 years ago
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A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are
Butoxors [25]
<h3>Answer:</h3>

82.11%

<h3>Explanation:</h3>

We are given;

  • Theoretical mass of the product is 137.5 g
  • Actual mass of the product is 112.9 g

We are supposed to calculate the percentage yield

  • We need to know how percentage yield is calculated;
  • To calculate the percentage yield we get the ratio of the actual mass to theoretical mass and express it as a percentage.

Thus;

% yield = (Actual mass ÷ Experimental mass) × 100%

            = (112.9 g ÷ 137.5 g) × 100%

            = 82.11%

Therefore, the percentage yield of the product is 82.11 %

7 0
3 years ago
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