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3 years ago

Iron is impermeable to air and water true or false

Chemistry

1 answer:

BabaBlast [244]3 years ago

6 0

Answer:

Pure iron is impermeable to air and water, so True.

Explanation:

When corroding, the oxide layer becomes permeable, but water and air cannot pass through pure iron.

I hope this helps! :)

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Which statement describes what is gained or lost during radioactive decay?

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Answer:

The answer is

Atoms gain other atoms

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3 years ago

Iron (III) chloride + sodium carbonate → iron (III) carbonate + sodium chloride Which of these is the balanced equation for the

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3 years ago

Which of Graphs 1 correctly represents the relationship between the pressure and Kelvin temperature of a gas?

aliya0001 [1]

Answer:

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3 years ago

Na +H₂O- NaOH +H₂ balance

Whitepunk [10]

Hey there!

Na + H₂O → NaOH + H₂

First, balance O.

One on the left, one on the right. Already balanced.

Next, balance H.

Two on the left, three on the right. Let's add a coefficient of 2 in front of NaOH and a coefficient of 2 in front of H₂O, so we have 4 on each side.

Na + 2H₂O → 2NaOH + H₂

Lastly, balance Na.

One on the left, two on the right. Add a coefficient of 2 in front of Na.

2Na + 2H₂O → 2NaOH + H₂

This is our final balanced equation.

Hope this helps!

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3 years ago

Name at least two benefits of using models in science

STatiana [176]

Answer:

Viewing systems from multiple perspectives.

Discovering causes and effects using model tractability.

Improving system understanding through visual analysis.

Explanation:

Got this from google, lol. But, I put three here just in case you could get extra credit for more than two.

3 0

3 years ago

Read 2 more answers