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2 years ago

How is energy transferred when objects are in contact A. Conduction B. Convection C. latent heat D. Radiation

1 answer:

7 0

Your answer is conduction, If there is a difference in temperature between two objects, energy is transferred from the hotter object to the cooler one. ... Energy can be transferred from a hot object to a cooler one.

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The "correct" mass of the cylinder had been previously determined to be 27.20 grams. What was the percent error on his first wei

Paraphin [41]

Answer:

Percent error = - 8.1 %

Explanation:

Given data:

Actual mass = 27.20 g

Theoretical mass = 25.01 g

Percent error = ?

Solution:

Formula:

Percent error = theoretical value- actual value/ actual value × 100

Now we will put the values in formula.

Percent error = 25.01 - 27.2 / 27.2 × 100

Percent error = -2.19 / 27.2 × 100

Percent error = -0.081 × 100

Percent error = - 8.1 %

5 0

3 years ago

Consider the balanced equation below.

Alexus [3.1K]

Answer : The mole ratios of Hydrazine to Hydrogen peroxide is 1 : 2 and

the mole ratios of Hydrazine to water is 1 : 4.

Explanation :

The balanced chemical equation is,

$N_{2}H_{4}+2H_{2}O_{2}\rightarrow N_{2}+4H_{2}O$

According to the given reaction,

1 mole of Hydrazine react with the 2 moles of Hydrogen peroxide.

Therefore, the mole ratios of Hydrazine to Hydrogen peroxide is 1 : 2

And in case of Hydrazine and water,

1 mole of Hydrazine gives 4 moles of water.

Therefore, the mole ratios of Hydrazine to water is 1 : 4

5 0

2 years ago

Read 2 more answers

Cual es la identidad de hierro?

Kaylis [27]

Answer:

what?

Explanation:

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6 0

2 years ago

A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work to

mixas84 [53]

Answer:

balance

Explanation:

4 0

2 years ago

What is the volume of an alka seltzer tablet

Delicious77 [7]

Answer:

Explanation:

Alka Seltzer tablet contains 325 mg of aspirin (acetylsalicylic acid), 1000 mg of citric acid, and 1916 mg of sodium bicarbonate. The acids originally contained in a tablet give only 17.4 mmol of H+, which is not enough to neutralize all of the sodium bicar- bonate (22.8 mmol).

3 0

3 years ago

Read 2 more answers

How is energy transferred when objects are in contact A. Conduction B. Convection C. latent heat D. Radiation​

How is energy transferred when objects are in contact A. Conduction B. Convection C. latent heat D. Radiation