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Chemistry

Demetrius Greene

Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electrons in its outer shell and chlorine has seven electrons in its outer shell. How are the electrons transferred between these atoms?

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Chemistry

Kyle Crane

What is formed during a chemical reaction when electrons are lost and gained?

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Chemistry

Kobe Villarreal

During a nuclear reaction, mass is converted into (1) charge (2) energy (3) isomers (4) volume

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Chemistry

Jared Atkins

The temperature reading of - 14°C corresponds to a Kelvin reading of:

-287 K.

287 K.

297.6 K

259 K.

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Chemistry

Guest

If element X consists of 64.6% of atoms with a mass of 34.0 u, 18.2% of atoms with a mass of 35.0 u, and 17.2% of atoms with a mass of 36.0 u, what is the average atomic mass of element X to the nearest hundredth?

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Chemistry

Joseph Blackwell

Water has a K, value of

1x 10-13

1x 10-10

1x 10-15

1x 10-14

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Chemistry

Philip

What evidence do scientists use to explain how the solar system formed? A) All the planets were a result of solar flares from the sun. B) All the planets are made of the same material, mainly helium. C) All the planets orbit in an elliptical pattern in the same direction. D) All the planets were a result of meteorites that were pulled together by gravity

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Chemistry

Jonas Norton

Ta, Os, Th are from metal?

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Chemistry

Kael Miller

The formula for Na2 O

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Chemistry

Izabelle Pace

The following chemical equation:

NaBr-

CL

NaCl-

Brg

Watch a video or use a hint.

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Chemistry

Guest

How does a decrease in temperature affect the pressure of a contained gas

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Chemistry

Hobbs

Give your determination of the stoichiometric formula of copper sulfide. a. Show the work detailing the proof of your assertion for the formula of the copper sulfide that you synthesized. The work should be included within your typed report in digital format.

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Chemistry

Jared

Which of the following measures the energy transferred from one object to another?

volume

mass

heat

temperature

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Chemistry

Adam Lowe

Which statements are true? na + is formed from the reduction of na (s). the oxidation number for hg (?) is 0. the oxidation number for cu (s) is + 2. zn2 + is formed from the oxidation of zn (s). a reducing agent gains electrons. an oxidizing agent gains electrons?

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Chemistry

Simeon Warren

An apple pudding is prepared by combining apples, sugar, butter, and lemon juice. To which category does it belong?

A) Compound

B) Mixture

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