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Sergeu [11.5K]
3 years ago
11

a scientist heats 30 grams of calcium carbonate (caco3) in the chemical reaction shown. what is the total mass of the products?

SAT
1 answer:
masya89 [10]3 years ago
6 0

The question is incomplete, the complete question is;

Use the chemical reaction to answer the question. ​CaCO3 → CO2 ​+ CaO A scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?

A. 10 grams B. 15 grams C. 30 grams D. 60 grams  

When a scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction, the total mass of the products is 30 grams.

According to the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction.

The simple interpretation of this law is that the total mass of reactants should necessarily be the same as the total mass of products obtained in the reaction.

We had 30grams of Calcium Carbonate (CaCO3) reacting hence we must have a total mass of 30 grams of CaO and CO2 obtained after reaction.

Learn more: brainly.com/question/14236219

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2 years ago
A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. He started at 90 kilograms and gained
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Answer:

90(Initial Weight) + <em>W*t = 138 Kg </em>

So the Weight increased per month is 6Kg

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The Wrestler started at 90Kg weight

After 8 months, Wrestler had a weight of 138Kg.

The weight gained by the wrestler in '<em>t'</em> months is:

138(Kg) - 90 (Kg) = 48 (Kg)

From above equation we can see that a difference of 48Kg was attained by Wrestler.

Since the question stated that, the weight increased at a constant rate, so we can calculate the weight gained each month over a period of 8 months.

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