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3 years ago

1 What will happen if rock shifts at a fault in Earth's crust?

Chemistry

1 answer:

Evgen [1.6K]3 years ago

7 0

Answer:

An earthquake will happen

Explanation:

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Which is a pure substance?

Ad libitum [116K]

Pure substances are made of the same material and have almost the same properties such as: Carbon, Iorn, Water, Sugar, Salt, and Nitrogen.

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3 years ago

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2. Calculate the heat energy needed to raise the temperature of 30 grams of

Margaret [11]

Answer:

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3 years ago

What are the differences between proton, neutron, and electron

AysviL [449]

A proton is positive energy, a neutron is neutral, and an electron is negative charge. Protons and neutrons are in the nucleus of an atom and electrons are on the electron cloud.

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3 years ago

What kinds of evidence are scientists using to learn about how the moon came to be ?

slamgirl [31]

Answer:

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Explanation:

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3 years ago

If an acid is made from the anion SO42-, what would it's formula be?

KatRina [158]

<u>Answer:</u> The chemical formula of the compound formed is $H_2SO_4$

<u>Explanation:</u>

Acids are defined as the chemical species which donate hydrogen ions when dissolved in water.

$HA(aq.)\rightarrow H^+(aq.)+A^-(aq.)$

Ionic compound is formed by the complete transfer of electrons from 1 atom to another atom. The cation is formed by the loss of electrons by metals and anions are formed by gain of electrons by non metals.

We are given:

An anion having chemical formula $SO_4^{2-}$ named as sulfate ion

This will combine with 2 hydrogen ions to form a neutral compound. The neutral compound formed is sulfuric acid.

Hence, the chemical formula of the compound formed is $H_2SO_4$

3 0

3 years ago