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stepan [7]
3 years ago
5

If you have 1kg of carbon and 1 kg of gold, they will weigh the same.

Chemistry
1 answer:
Mekhanik [1.2K]3 years ago
8 0
This would be be true
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nirvana33 [79]
I believe the answer is C !
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2 years ago
Which forces can be classified as intramolecular?
just olya [345]

Answer:

D) Covalent Bonds

Explanation:

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What conclusion can you make about a hypothesis that contradicts an existing theory?
Naddika [18.5K]
What are you making a hypothesis for 
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3 years ago
When you apply 1000 joules of energy to 50 grams of water its temperature changes to 30 degrees . What was the initial temperatu
expeople1 [14]

Answer:

25.2°C

Explanation:

Given parameters:

Energy applied to the water  = 1000J

Mass of water  = 50g

Final temperature  = 30°C

Unknown:

Initial temperature  = ?

Solution:

To solve this problem, we use the expression below:

            H  = m c Ф

H is the energy absorbed

m is the mass

c is the specific heat capacity

Ф is the change in temperature

     1000  = 50 x 4.184 x (30  -  initial temperature )

     1000  = 209.2(30 - initial temperature)

      4.78  = 30 - initial temperature

      4.78  - 30  = - initial temperature

         Initial temperature  = 25.2°C

7 0
3 years ago
Gold has a molar (atomic) mass of 197 g/mol. consider a 2.47 g sample of pure gold vapor. (a) calculate the number of moles of g
adell [148]
N = given mass/ molar mass.
n = number of moles
given mass = 2.47 g
molar mass = 197 g/mol

n = 2.47 / 197 
n = 0.01253 moles.
I'm sure you wanted to ask more than this. Just put some comments in. I can do the same.
3 0
3 years ago
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