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2 years ago

Balance the following equations

Chemistry

1 answer:

hoa [83]2 years ago

8 0

Answer:

Explanation:

2Al + 3Cl2 --> 2AlCl3

Ag2O + Be -----> 2Ag + BeO

4K + O2 ---> 2K2O

CoP + 3NaBr ---> CoBr3 + Na3P

Si + Hg2S ---> SiS2 + Hg

6Li + Ni3N2 --- > 2Li3N + 3Ni

3Ca + 2K3N --> Ca3N2 + 6K

SnS2 + 2F2 --> SnF4 + 2S

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bearhunter [10]

Answer:

1 temperature 2 weather 3 the stratosphere 4 decreases 5 increases

Explanation:

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3 years ago

Read 2 more answers

How many moles of Carbon are in 3.06 g of Carbon

natta225 [31]

Answer:

$\boxed {\boxed {\sf 0.255 \ mol \ C }}$

Explanation:

If we want to convert from grams to moles, the molar mass is used. This is the mass of 1 mole. They are found on the Periodic Table as the atomic masses, but the units are grams per mole (g/mol) instead of atomic mass units (amu).

Look up the molar mass of carbon.

Carbon (C): 12.011 g/mol

Set up a ratio using the molar mass.

$\frac {12.011 \ g \ C}{ 1 \ mol \ C}$

Since we are converting 3.06 grams to moles, we multiply by that value.

$3.06 \ g \ C*\frac {12.011 \ g \ C}{ 1 \ mol \ C}$

Flip the ratio. This way, the ratio is still equivalent, but the units of grams of carbon cancel.

$3.06 \ g \ C* \frac{1 \ mol \ C}{12.011 \ g\ C}$

$3.06 * \frac{1 \ mol \ C}{12.011 }$

$\frac {3.06}{12.011 } \ mol \ C$

$0.25476646 \ mol \ C$

The original measurement of grams (3.06) has 3 significant figures, so our answer must have the same. For the number we calculated, that is the thousandth place.

0.25476646

The 7 in the ten-thousandth place tells us to round the 4 up to a 5.

$0.255 \ mol \ C$

3.06 grams of carbon is approximately <u>0.255 moles of carbon.</u>

3 0

2 years ago

what is the greatest amount of bread rolls that can be made with 6 cups of flour And 3 cups of water? If this were a chemical re

forsale [732]

Answer:

if you tell me how much is needed and how much you have then i can answer it, but there is not enough information provided to answer to that question.

Explanation:

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2 years ago

Calculate the volume of a 0.200 M KCl solution containing 5.00 10-2 mol of solute. Enter your answer in the provided box. IL

Paul [167]

Answer:

The volume of a 0.200 M KCl solution containing 5.00 10-2 mol of solute is 0,25 L

Explanation:

Molarity (M) means: moles of solute which are contained in 1 L of solution.

In this case we have 0,2 moles which are in 1 L, so, as we have 5x10*-2 moles we have to apply a rule of three to find out the volume.

0,2 moles ........... 1 L

5x10*-2 moles ........... x

x= (5x10*-2 moles . 1 L) / 0,2 moles = 0.25L

(we can also say 250 mL)

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3 years ago

Fill in the chart to identify three parts of Dalton's model of the atom.

mamaluj [8]

The first part of Dalton's model is that all matter is made of atoms, and these atoms are indivisible.

The second part of this model is that atoms of an element have identical masses and identical propertes.

At last, the third part of Dalton's model is that all compounds are formed by two or more different type of atoms combined.

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1 year ago