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kolbaska11 [484]
2 years ago
11

How many oxygen molecules are in 5.17g of oxygen gas​

Chemistry
1 answer:
Alex787 [66]2 years ago
4 0

Answer:

is cool is cool goodcripopo

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A reaction is occurring in a test tube. How is heat transmitted to the surroundings?
Cerrena [4.2K]

It should be noted that when a  reaction is occurring in a test tube, heat transmitted to the surroundings when Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.

<h3>What is heat?</h3>

Heat can be regarded as a form of energy which is energy that is been transferred as a result of difference in temperature.

In the case above, Molecules collide with the glass, and the glass molecules then transmit that energy to the outside which is an exothermic reaction.

Therefore, option B is correct.

Learn more about heat at:

brainly.com/question/12072129

8 0
3 years ago
What element has the electron configuration 1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p2?
Marina CMI [18]
<span>6s²4f¹⁴5d¹⁰6p²
6 shows that the element is in the 6 period,
6p² shows that the element is in the 14th group. (1 and 2 groups have s -electrons as last ones, 13 group has s²p¹, and 14 group has s²p²)
The element is Pb.

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3 0
3 years ago
Read 2 more answers
What mass of H2O is produced by the combustion of 1.00 mol of CH4?
kkurt [141]
CH4 : H2O
1 : 2

number of moles of H2O = 1.00 x 2
number of moles of H2O = 2.00mol

mass = number of moles x molar mass

mass of H2O = 2.00 x (1 + 1 + 16)
mass of H2O = 36g
8 0
2 years ago
Controls are defined as ____​
wariber [46]

Answer:

The second one is the answer

4 0
3 years ago
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How to work out the rate of reaction in Chemistry
Arlecino [84]
One way you can work out the rate of reaction is by the amount of product that is produced to time. This can also be done with heat and time.

Hope this helps! :)
8 0
3 years ago
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