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Dmitrij [34]
3 years ago
9

SiO2 + 3C - SiC + 2CO

Chemistry
1 answer:
noname [10]3 years ago
6 0

Answer:

96g

Explanation:

To know the exact mass of carbon (C) to add to the reaction, we need to convert 8 moles of carbon (C) to grams.

This is illustrated below:

Molar mass of C = 12g/mol

Number of mole of C = 8 moles

Mass of C =..?

Mass = number of mole x molar mass

Mass of C = 8 x 12

Mass of C = 96g

Therefore, 96g of carbon (C) is needed.

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How many moles are 3.21×10^28 molecules of N2?
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Answer:5 to the 7th power

Explanation:

Divided 7 and y then add 4

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3 years ago
What causes the difference in bond angles in carbon dioxide and water?
egoroff_w [7]

Answer is: C) the fact that the number of lone pairs of electrons on the central atom is greater in the case of water.

Carbon(IV) oxide is nonpolar because CO₂ is linear molecule and the oxygen atoms are symmetrical (bond angles 180°).

Water is polar because of the bent shape of the molecule.

Oxygen atom in water molecule has sp3 hybridization. The bond angle between the two hydrogen atoms is approximately 104.45°.

Oxygen atom has atomic number 8, it means it has eight protons and eight electrons, so atom has neutral charge. Oxygen is a nonmetal.

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5 0
3 years ago
Read 2 more answers
What is the mass of 100 mL of corn oil?
prisoha [69]

Answer:

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hope this helps

5 0
3 years ago
Calculate the ratio of the mass ratio of SS to OO in SOSO to the mass ratio of SS to OO in SO2SO2. Consider a sample of SOSO in
Veronika [31]

Answer:

The ratio of the mass ratio of S to O; in SO, to the mass ratio of S to O; in SO₂, is  2:1

Explanation:

According to the consideration, let us first find the ratio of S and O in both the compounds

For SO:

\frac{m_{S} }{m_{O} }= \frac{32}{16}\\\\   \frac{m_{S} }{m_{O} }= 2

Let us express it as

SO_{\frac{m_{S} }{m_{O} }} = 2

For SO₂,

Due to two oxygen atoms in the molecule, the mass of oxygen will be taken two times

\frac{m_{S} }{m_{O} }= \frac{32}{(2)(16)}\\\\   \frac{m_{S} }{m_{O} }= 1

Let us express it as

SO_2_{\frac{m_{S} }{m_{O} }}= 1

Now, for the ratio of both the above-calculated ratios,

\frac{SO_{\frac{m_{S} }{m_{O} }}}{SO_2_{\frac{m_{S} }{m_{O} }}}=\frac{2}{1}

The required ratio is 2:1

3 0
3 years ago
How do you know what numbers in a chemical formula are significant
bulgar [2K]

Answer:

All the numbers in a chemical formula are significant, It is because the numbers in a chemical formula denote the number of different atoms present in the particular compound.

For example in H2SO4 there are 2 H 1 S and 4 O. This means 1 H2SO4 has 2 hydrogen 1 sulphur and 4 oxygen.

3 0
3 years ago
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