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Karolina [17]
2 years ago
10

How many kJ of heat do you need to raise the temperature of 200 g of Aluminum from 80 °C to 100 °C?

Chemistry
1 answer:
marta [7]2 years ago
7 0

Answer:

0.01

Explanation:

100 -80=20

200/20=10/1000=0.01kj

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A student measures the volume of a solution to be 0.01370 l. How many significant digits are in this measurement?
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A student measures the volume of a solution to be 0.01370 have 5 significant digits in this measurement.

<h3>What are significant digits?</h3>

The significant digits are the minimum number from zero to nine for reporting any measurement where the digits are uncertain.

The significant digits starting from zero are not significant digits, decimal is not a significant digit, and ending zero after the decimal are significant digits.

Therefore, the student measures the volume of a solution to be 0.01370 5 significant digits are in this measurement.

Learn more about significant digits, here:

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2 years ago
You are walking in a clear-cut section of forest a few days after a heavy rainstorm. A nearby stream is very muddy and has many
zhuklara [117]

Answer:

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Explanation:

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3 years ago
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scoray [572]

Answer:

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According to our textbook, write the formula for the anhydrous compound that was part of the mixture called natron that was used
bearhunter [10]

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The formula for the anhydrous compound that was part of the mixture called natron that was used by the Egyptians is Na2(CO3)10(H2O).

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