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QveST [7]
3 years ago
9

1. How many particles are present in 800 grams of copper (II) sulfide, CuS? The molar mass of CuS is 95.611 g/mol.

Chemistry
1 answer:
wel3 years ago
8 0
1-5.037077324x10^23

Use these magic triangles they will help you a lot

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Marizza181 [45]

Answer:

That's simple it's the caca of 54 32 x (5) b ÷ 5683jvl done so your answer is 0

6 0
3 years ago
The substrate is the same in parts a and b, however the mechanism that proceeds is different. Explain how the choice of solvent
GenaCL600 [577]

Answer:

See explanation

Explanation:

The reaction of a benzyl bromide with a nucleophile may proceed by SN1 or SN2 mechanism depending on the nature of the solvent used.

Since SN1 reaction involves the formation of a carbocation, it usually predominates in the presence of a poor nucleophiles and protic solvents. Hence when methanol is used as solvent and a poor nucleophile is used, SN1 mechanism predominates.

However, when acetone which is an aprotic solvent is used in the presence of a good nucleophile, SN2 reaction mechanism predominates.

3 0
3 years ago
What are properties that metals all have? I need 3
krok68 [10]

Answer:

solid at room temperature (with the exception of mercury)

usually shiny.

high melting point.

good conductor of heat.

good conductor of electricity.

low ionization energies.

low electronegativities.

malleable – able to be pounded into sheets.

Explanation:

8 0
3 years ago
Read 2 more answers
A tissue that has the ability to contract is
bonufazy [111]
Muscle tissue

Explanation: Muscle tissue is a soft tissue that makes up most of the tissues in the muscles of the human muscular system. It is the only type of tissue that has cells with the ability to contract. Skeletal muscle tissue is attached to bones by tendons.
8 0
3 years ago
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What is the main reason metals such as silver and copper are used in making coins
Tanya [424]

Answer:

The alloys used to make coins are usually Copper, Zinc and Nickel. There are several reasons: The alloy must be very hard to withstand the use and circulation of the coin to not wear out soon. Then, the alloy must have a value less than the value of the currency to avoid that are founded and sold as mere metals.

Explanation:

7 0
4 years ago
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