3 years ago

Most atoms normally have a net charge that is _________.

Chemistry

1 answer:

Citrus2011 [14]3 years ago

7 0

Zero because there are so many electrons as protons.

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D is the correct option

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3 years ago

How much heat is transferred when during a reaction, 531 g of water increases from 22.7 ○C to 38.8 ○C?

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Answer:

8.55 × 10³ cal

Explanation:

Step 1: Given and required data

Mass of water (m): 531 g

Specific heat of water (c): 1 cal/g.°C

Initial temperature: 22.7 °C

Final temperature: 38.8 °C

Step 2: Calculate the temperature change (ΔT)

ΔT = Final temperature - Initial temperature = 38.8 °C - 22.7 °C = 16.1 °C

Step 3: Calculate the heat required (Q)

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3 years ago

Laughing gas, N2O, also known as nitrous oxide contains 28.01 g of nitrogen in every 44.01 g of nitrous oxide. What mass of nitr

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Answer : The mass of nitrous oxide formed from 85.20 g of nitrogen is, 133.9 grams.

Explanation :

As we are given that, 28.01 g of nitrogen is present in 44.01 g of nitrous oxide. Now we have to determine the mass of nitrous oxide formed from 85.20 g of nitrogen.

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