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2 years ago

In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using?

1 answer:

7 0

Pretty much, if I were going to separate small solid particles, I could use like a piece of paper. I used some type of piece of paper when I was trying to separate some particles during science.

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An atom of calcium contains 20 protons how many electrons does it have

harina [27]

20.

Atomic number is equivalent to its protons and electrons. :)

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3 years ago

What bonds are broken and octane combustion?

dedylja [7]

Answer:

Common combustion reactions break the bonds of hydrocarbon molecules,

Explanation:

the resulting water and carbon dioxide bonds always release more energy than was used to break the original hydrocarbon bonds. That's why burning materials mainly made up of hydrocarbons produces energy and is exothermic.

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2 years ago

Which ecosystem is most resilient to change due to its high diversity?

devlian [24]

Answer:

coral reef

Explanation:

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3 years ago

6.) Choose all of the following that are TRUE regarding the Ideal Gas Law.

Cerrena [4.2K]

Answer:

All temperatures must be in Kelvins.

Explanation:

What you have to know;

When Pressure is in atm units

Temperature must be in Kelvins.
Volume must be in cubic centimetres.
R = 0.0813

When Pressure is in Pascals or N/m^2

Temperature must be in Kelvins.
Volume must be in cubic metres.
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4 0

3 years ago

PLEASE HELP!!!!!!!!! WILL MARK BRAINLIEST

frozen [14]

Answer:

19.278049929737628457607385688801

Explanation:

Volume = L * W * H

Volume = 17.78 * 9.21 * 4.45 = 728.70441

Density = Mass / Volume

Mass = 14,048

14,048 / 728.70441 = 19.278049929737628457607385688801

Density = 19.278049929737628457607385688801

7 0

3 years ago

Read 2 more answers