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Tresset [83]
2 years ago
9

POINTS FOR HELP!!!!!

Chemistry
1 answer:
Fudgin [204]2 years ago
3 0
MgSO4, CO2, AlCl3 are the answer
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Which of these represents a compound ? *<br> Water<br> Hydrogen<br> Oxygen
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water

Explanation:

H2O

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Which of the following situations demonstrates balanced force
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i think i had the same question as you, I put "A car driving on a straight freeway at 60 miles per hour" which was correct for me.

Explanation:

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A.It is used to generate electricity
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4NH3+5O2=4NO+6H20 if 32.5 grams of NH3 react with enough oxygen, how many grams of water should form?
Aneli [31]

51.3 gram of water should form if 32.5 g of NH₃ react with enough oxygen.

<h3>How to find the Number of moles ?</h3>

To calculate the number of moles use the formula

Number of moles = \frac{\text{Given Mass}}{\text{Molar Mass}}

                              = \frac{32.5}{17}

                              = 1.9 mol

4NH₃ + 5O₂ → 4NO + 6H₂O

4 mol of NH₃ react with oxygen to given 6 mole of water.

So 1.9 mol of NH₃ produces = \frac{1.9}{4}\times 6

                                              = 2.85 mol of water

Mass of water = Molar Mass of water × Number of moles of water

                        = 18 × 2.85

                        = 51.3 gram

Thus from the above conclusion we can say that 51.3 gram of water should form if 32.5 g of NH₃ react with enough oxygen.

Learn more about the Moles here: brainly.com/question/15356425

#SPJ1

6 0
1 year ago
COMPLETE<br> How many grams of CaCl2 are in 250 mL of 2.0 M CaCl2?
saul85 [17]

Answer:

There are 55, 49 g of CaCl2

Explanation:

We calculate the weight of 1 mol of CaCl2:

Weight CaCl2=Weight Ca + 2x(Weight Cl)= 40,08g+ 2x 35, 45g=110,98 g/mol

1000ml-----2 mol of CaCl2

250ml------x= (250 ml x 2 mol of CaCl2)/1000ml= 0,5 mol of CaCl2

1mol -----110,98g

0,5mol ---x= (0,5molx110,98g)/1 mol= <em>55,49 g</em>

6 0
3 years ago
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