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4 years ago

4/10 Identify the equation below as molecular or ionic. Mg2+(aq) + 20H-(aq) → Mg(OH)2(s)

Chemistry

1 answer:

Crank4 years ago

6 0

Answer:

Ionic

Explanation:

Magnesium hydroxide is an ionic compound and its formula is Mg(OH)2. An ionic bond is formed between two atoms when one is electron deficient and the other one is electron sufficient.

Here, Mg2+ is positively charged while OH- is negatively charged. Being oppositely charged strong ionic bonds are formed between these two elements.

An ionic molecule has high boiling and melting point and is stronger than molecules formed by covalent bonds.

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Which of the following has to remain constant to allow you to use the combined gas law for calculations?

Mazyrski [523]

Answer:

Amount of gas

Explanation:

The combined gas law has to do with pressure, volume, and temperature. All of them can be a variable that you have to solve for. However, amount of gas is not a variable you can solve for, which means it must remain constant.

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3 years ago

Sugar is stirred into water tp form a solution what names to we give to the sugar and water

Nina [5.8K]

Your answer would be, Sugar is the solute, and water is the solvent. a solution is the mixture of two, or more substances.

Hope that helps!!!

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4 years ago

H I 1 " C=C 1 I H What is the IUPAC name

geniusboy [140]

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3 years ago

If the pH of the solution is 10, what is the [OH-] concentration?

swat32

Answer:

1× $10^{-4}M$

Explanation:

To solve this, you will need to do multiple steps.

Firstly, you will have to convert to pOH from pH, which is done by simply subtracting 14-10 to get a pOH of 4.

Then, use the following formula to calculate the [OH-} concentration:

[OH-]= $10^{-pOH}$

When converted to Scientific Notation, you get a resulting answer of

1× $10^{-4}M$ .

5 0

4 years ago

What volume would be occupied bu 8.53 g of a substance whose density is 2.54 g/mL?

Marina86 [1]

Hey there!

Mass = 8.53 g

Volume = ?

Density = 2.54 g/mL

Therefore:

D = m / V

2.54 = 8.53 / V

V = 8.53 / 2.54

V = 3.35 mL

Hope that helps!

7 0

4 years ago