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lana66690 [7]
3 years ago
5

3Solve and derive the unit for Power​

Chemistry
1 answer:
Mars2501 [29]3 years ago
7 0

Answer:

Unit of power is watt

Explanation:

Power = rate of doing work

or

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.

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The Arrhenius theory explains how the concentration of H
koban [17]

Answer:true

Explanation:

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2 years ago
If a mineral has a metallic shine and scratches, which of its properties are being measured? Choose the two correct answers.
zzz [600]
If a mineral has a metallic shine and scratches, which of its properties are being measured?
Choose the two correct answers.

magnetism

hardness

cleavage

luster

Answer: hardness and luster
8 0
3 years ago
Define reactivity of metals​
pochemuha
Reactivity metal is when a group of metal elements form recreation using acids, water.
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2 years ago
You have 100ml of a 12m solution of HCI, and you need to dilute it to 1.5m for an experiment. How many liters will your new solu
asambeis [7]

Answer:

0.8 liters.

Explanation:

By proportion  the volume of the new solution will be (12/1.5) * 100 ML

= 800 ml = 0.8 liters.

5 0
3 years ago
A solution is made by mixing equal masses of methanol, CH 4 O , CH4O, and ethanol, C 2 H 6 O . C2H6O. Determine the mole fractio
wariber [46]

Answer: The mole fraction of methanol

Xmeth= 0.59

The mole fraction of ethanol

Xeth = 0.41

Explanation:

Mole fraction of a component can be determined by:

Xi = moles of i / total moles of the components the components

Where i indicates the component

An equal mass of 100.0g is assumed for both methanol and ethanol

Molar mass of Methanol (CH4O)

= (1*12) + (4*1) +(1*16) =32g/mol

Mole of Methanol = mass of methanol /molar mass of methanol

=100/32 = 3.13mol.

Molar mass of ethanol ( C2H6O)

= (2*12)+(6*1)+(1*16) = 46.0g/mol

Mole of ethanol = 100/46

= 2.17mol.

Mole fraction of methanol (Xmeth)

= moles of methanol / total moles

Xmeth = 3.13/(3.13+2.17)

Xmeth = 0.59

Mole fraction of ethanol (Xeth)

= moles of ethanol /total moles

= 2.17/((3.13+2.17)

Xeth= 0.41

5 0
3 years ago
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