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Alik [6]
3 years ago
10

Which student is responses are correct?​

Chemistry
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

Neutrons: Electron cloud

Explanation:

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What are 3 household substances that contain acids and say why are they useful​
Nonamiya [84]

Answer:

battery. you use it for your remotes. vinegar. you use vinegar for cooking of cleaning. nail polish remover. you use this for removing nail polish

6 0
2 years ago
Why do real gases deviate from gas laws
frosja888 [35]

Answer:

Attractions between molecules cause a reduction in volume

Explanation:

5 0
2 years ago
When did oxygen first appear in earth's atmosphere??
ad-work [718]
<span> the atmosphere holds about 21 per cent oxygen. Over the Earth’s 4.6 billion year history, oxygen did not appear in the atmosphere until perhaps about 2.5 billion years ago. Since then, oxygen levels have fluctuated in tandem with global geological and biological events, such as mass extinctions.</span>
7 0
3 years ago
1. How many molecules of S2 gas are in 756.2 L?
AfilCa [17]

Answer: There are 2.032 \times 10^{25} molecules S_{2} gas are in 756.2 L.

Explanation:

It is known that 1 mole of any gas equals 22.4 L at STP. Hence, number of  moles present in 756.2 L are calculated as follows.

Mole = \frac{Volume}{22.4 L}\\= \frac{756.2 L}{22.4 L}\\= 33.76 mol

According to mole concept, 1 mole of every substance contains 6.022 \times 10^{23} molecules.

Therefore, molecules of S present in 33.76 moles are calculated as follows.

1 mol = 6.022 \times 10^{23}\\33.76 mol = 33.76 \times 6.022 \times 10^{23}\\= 2.032 \times 10^{25}

Thus, we can conclude that there are 2.032 \times 10^{25} molecules S_{2} gas are in 756.2 L.

5 0
3 years ago
Need help asap!!!!<br> will mark brainliest!!!
SOVA2 [1]

Answer:

picture not bright

Explanation:

please a brainliest for tge feedback

7 0
2 years ago
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