3 years ago

Why is silicon dioxide a suitable material for lining furnaces

Chemistry

1 answer:

joja [24]3 years ago

7 0

It has a very high melting point

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marysya [2.9K]

Answer:

The equation is already balanced. There's an equal number of materials on each side of the equation.

4 0

3 years ago

How many formula units make up 19.0 g of magnesium chloride (MgCl2)?

professor190 [17]

To convert the mass of a compound to formula units, the conversion factor is Avogadro's number, 6.022 x10^23 formula units/ mol and its molar mass. In this case, we are given with 19.0 grams of magnesium chloride which has a mass of 95.21 g/mol. Hence the answer is 1.20 x 10^23 formula units.

5 0

3 years ago

What is the pH of a solution in which [H 3O +] = 3.8 × 10 -8 M?

7nadin3 [17]

Answer:

<h3>The answer is 7.42 </h3>

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ { H_3O}^{+}]$

From the question we have

$pH = - log(3.8 \times {10}^{ - 8} ) \\ = 7.420216...$

We have the final answer as

Hope this helps you

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2 years ago

What mass of a 0.583 molar solution of iron(III) nitrate is needed to obtain a) 0.0200 moles of iron(III) nitrate, b) 0.0500 mol

geniusboy [140]

Answer:

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Explanation:

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3 years ago

The ratio of x to y is 4 to 12. Fill in numbers to<br>form a table with the given ratio,

murzikaleks [220]

Answer:

Explanation:

x y

4 12

8 24

12 36

16 48

20 60

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3 years ago