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PilotLPTM [1.2K]
4 years ago
5

Materials

Chemistry
1 answer:
nikitadnepr [17]4 years ago
8 0

Answer:

Limestone caves are formed when acid rain occurs.

Explanation:

When chalk pieces which is made of calcium carbonate react with acetic acid, it produces carbon dioxide, calcium acetate, and water. When calcium carbonate react with Carbonated Water produces calcium bicarbonate. Limestone cave forms when the dissolution of limestone occur when rainwater which is acidic due to the addition of carbondioxide in the air react with limestone. This dissolution removes the lime from the rock and caves are formed.

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How do volcanoes remind<br> us that god still cares for<br> This world
olga55 [171]

Answer:

I'm not really religious but I will take a shot looking from your perspective.

He shows that he is still acting around us by showing how powerful he is and that to remind us that he still does things on this earth and still acts around this earth.

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3 years ago
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What is the primary source of heat in the central cores of the giant planets?
Yanka [14]

Answer:

Each giant planet has a core of “ice” and “rock” of about 10 Earth masses. Jupiter, Saturn, and Neptune have major internal heat sources, obtaining as much (or more) energy from their interiors as by radiation from the Sun.

Explanation:

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PLEASE HELP! (IM GIVING BRAINLIEST) Iron is a transition metal and, as such, can form two types of "oxide" salt compounds, FeO a
belka [17]

Answer:

See explanation

Explanation:

Iron exhibits two stable oxidation states, +2 and +3 states. The difference between FeO and Fe2O3 is that, in FeO, Fe is in the +2 oxidation state while in Fe2O3, Fe is in the +3 oxidation state

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In Fe2O3, Fe looses six electrons while oxygen has gained six electrons as shown;

2Fe^3+ + 3O^2- ------>Fe2O3

7 0
3 years ago
Emma constructed a simple motor. When connected correctly, the coil of copper wire spins. Which of the following best describes
faltersainse [42]

Answer:

ok first your in my class and second im stuck too

Explanation:

3 0
3 years ago
If oxygen at 128 kpa is allowed to expand at constant temp until it's pressure is 101.3 kpa how much larger will the volume beco
LenaWriter [7]

which means that the volume increased by 26.4 mL in order to compensate for the decrease in pressure.

Like I said, depends on what your initial volume was, but that's how you think of it.

Hope this helped!

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