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2 years ago

COMPLETE

Chemistry

1 answer:

Mademuasel [1]2 years ago

5 0

Answer:

I can't understand any thing

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3<br>Solve and derive the unit for Power

Mars2501 [29]

Answer:

Unit of power is watt

Explanation:

Power = rate of doing work

Power, P = W/t

Where

W is work done and t is time

The unit of work done is Joules and that of time is seconds.

Power, P = J/s

We know that, J/s = watts

Hence, the unit of power is watts.

7 0

2 years ago

When you place a glass over a candle and the flame goes out, the limiting reactant is, oxygen wax energy water

jeka57 [31]

Answer: oxygen

Explanation:

4 0

2 years ago

Help with number 20-22 please

SSSSS [86.1K]

18. c
19. A
20. decomposition reaction
21. 4
22. 0.04%

4 0

3 years ago

Find mass of 3 moles of water

EleoNora [17]

Answer:

54 g

Explanation:

1 mole of water = H2O

mass of 1 mole of H2O= mass of h2 + mass of o

= 2× mass of h +mass of o

= 2×1+16 =18 g

1 mole of water = 18g

3moles of water = 18×3g= 54g

6 0

2 years ago

Oxygen gas is collected over water. The total pressure (the O2 pressure the water vapor pressure) is 736 torr. The temperature o

tigry1 [53]

Answer:

The value of the partial pressure of the oxygen $P_{O_{2} }$ = 690 torr

Explanation:

Total pressure of the mixture of gases = 736 torr

The partial pressure of water vapor = 46 torr

From the law of pressure we know that

Total pressure = The partial pressure of water vapor + The partial pressure of oxygen $O_{2}$

Put the values of pressures in above equation we get,

⇒ 736 = 46 + $P_{O_{2} }$

⇒ $P_{O_{2} }$ = 736 - 46

⇒ $P_{O_{2} }$ = 690 torr

This is the value of the partial pressure of the oxygen.

3 0

3 years ago