2 years ago

Balanced equation: SiO2 + 4 HF --> SiF4 + 2H2O

1 answer:

3 0

C. 25 Miles

This is because you have 12.5 moles of water and using the ratio this is 2 (molar ratio). Therefore the molar ratio for HF is 4, so 12.5 x 2 = 25 moles

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11. Is this compound an acid or a base: H20?<br> both<br> base<br> neutral<br> acid

dolphi86 [110]

Answer:

Neutral

Explanation:

It has a pH of 7, so it is considered neutral, and neither an acid nor a base. This means it is a neutral!

6 0

2 years ago

Read 2 more answers

Consider the following reaction:

Goshia [24]

Answer:

2.01

Explanation:

First, let's convert grams to moles

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2 years ago

After isolating the pure crystals on a Hirsch funnel, wash them with solvent, but they dissolve and disappear into the funnel. W

AlladinOne [14]

Answer:

The pure crystals were soluble in the wash solvent.

Explanation:

The pure crystals on the funnel dissolved because they were soluble in the solvent used for washing. They were carried into the filter flask by the solvent.

3 0

3 years ago

Star A has a magnitude of 2. Star B has a magnitude of 5. What is the brightness ratio? A.6.3 : 1 B.15.8 : 1 C.5 : 2 D.2 : 5

Temka [501]

I think the answer is C

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2 years ago

25 g of a chemical is dissolved in 75 g of water. What is the percent by mass concentration of this chemical

Zanzabum

Answer:

300

Explanation:

4 0

2 years ago