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disa [49]
3 years ago
9

Full the blanks...

Chemistry
1 answer:
galben [10]3 years ago
5 0

Explanation:

NOO I KNOW..........................

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things required for life, including heat, water, nutrients, salts and oxygen are called "___________ substances."
Contact [7]

Answer:

Vital

Explanation:

Hello! The factors mentioned previously are essential substances for the life and health of our bodies. Not only in humans, but also for animals. They are factors that are linked and contribute to physical and mental energy, growth and life. Are essentials because humans can't live without that.

Thanks for your question! Feel free to ask more!

3 0
3 years ago
Which statements describe friction? Select four options.
Aleks04 [339]

Answer:

It results from microscopic bumps and ridges

It causes a change in motion

It is opposite to the direction of the motion.

It is parallel to the surfaces that rub together.

Explanation:

8 0
3 years ago
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Please help 10 points asap​
AnnyKZ [126]

Answer:

opposite

Explanation:

3 0
3 years ago
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How could you use
ExtremeBDS [4]

Answer:

The procedure with the  simple calorimeter to  compare the energy released  by different fuels is described below in detail.

Explanation:

If the response delivers heat (rxn < 0), then heat is consumed by the calorimeter (calorimeter > 0), and its temperature improves. Conversely, if the response consumes heat (rxn > 0), suddenly heat is carried from the calorimeter to the arrangement (calorimeter < 0), and the temperature of the calorimeter drops.

8 0
3 years ago
Sulfur hexafluoride, SF6, is a colorless, odorless, very unreactive gas. Calculate the pressure (in atm) exerted by 2.02 moles o
miss Akunina [59]

Answer:

9.15 atm

Explanation:

Ideal gas equation of state PV=nRT

P in hPa, V in L, n in mol, R is a constant which is 83.1 hpa*L/mol*k, T in kelvin.

Plug in all the number, and we will get:

P*6.21=2.02*83.1*343

P =9271.6(in hpa)=9.15 atm

8 0
3 years ago
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