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likoan [24]
3 years ago
9

How TO DO THIS QUESTION PLEASE PLEASEEEEEEEEEeeeeeeeeeeeeeeeeeeee​

Chemistry
1 answer:
krok68 [10]3 years ago
3 0
O2 is the limited reactant

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Wewaii [24]
Answer: A) Water Explanation: Water molecules are polar molecules
6 0
3 years ago
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Some one please help me ​
Norma-Jean [14]

Answer:

C.4

Explanation:

6 0
3 years ago
Which scientist discovered that the atomic number, rather than the atomic weight, is more responsible for the properties of an e
myrzilka [38]

<em>Answer:</em>

  • The correct option is Moseley who has discovered the atomic number.

<em>Explanation:</em>

  • In 1913, H. Moseley discovered a new properties of an element atomic number. He observed that elements in the periodic table can be arranged better according to atomic number rather than atomic mass.
  • The atomic number of any elements is always equal to numbers of electrons in it.
3 0
3 years ago
Which pair must represent atoms of the same element?
andrew-mc [135]
Your answer is B and the element is Carbon

So what your looking for is matching isotopes. Isotopes are elements that are the same in amount of protons but different in mass meaning different number in neutrons. Because when you add the total protons and neutrons together you get your atomic mass. So this can be written as X=said element, top number above=different atomic mass, bottom number below=atomic number. Hope this help!!

Be careful because answer A has same masses but different atomic numbers so different atoms(elements)!!!
4 0
2 years ago
A gas has a volume of 5.0 L at a pressure of 50 kPa. What happens to the volume when temperature is held constant and the pressu
Leto [7]

2.0L        is the answer for sure

3 0
3 years ago
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