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Ivahew [28]
3 years ago
9

How much will 3 moles of Mg(OH)2 weigh?

Chemistry
1 answer:
Ymorist [56]3 years ago
4 0

Answer:

174.9591 Grams mate :) have a good day ily

Explanation:

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Some one help me please I'm stuck Show using two conversion factors how you would convert from 0.020 kg into mg.
julia-pushkina [17]

Answer:

=2.0x10^4mg

Explanation:

Hello there!

In this case, when performing units conversions involving two proportional factors we need to make sure we first convert to the base unit and then to the target one; thus, since 1 kg = 1000 g and 1 g = 1000 mg, we set up the following expression:

=0.020kg*\frac{1000g}{1kg} *\frac{1000mg}{1g} \\\\=2.0x10^4mg

Best regards!

4 0
3 years ago
S this statement true or false? All worms belong to the same phylum.
telo118 [61]

Answer:

FALSE.

Explanation:

The right answer is false. There are three different groups of phylum for worms.

Hope this helped!

8 0
3 years ago
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Which of the following characteristics is NOT associated with El Niño?
Evgesh-ka [11]

Answer:

I think it's Cooler waters rising to the surface of the ocean.

Explanation:

I've heard of all the others happening. :)

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2 years ago
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What are valance electrons
Leni [432]

valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

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What is the optimum pH to separate a mixture of lysine, arginine, and cysteine using electrophoresis
belka [17]

Answer:

9.5

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Electrophoresis is a separation technique which involves the passage and the use of electric current in separating amino acid mixtures. The positively charged protein moves to the negative electrode while the negatively charged protein moves to the positive electrode which is in accordance to the law of attraction.

Proteins however perform optimally at the right temperature and pH. Studies shows that the optimum pH to separate a mixture of lysine, arginine, and cysteine using the electrophoresis method of separation is around 9.5

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