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alexandr402 [8]
4 years ago
15

Multiple Choice

Chemistry
2 answers:
professor190 [17]4 years ago
7 0
I think it would be d. all of the above
Slav-nsk [51]4 years ago
7 0

Answer:

D. All of these

Explanation:

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Please help I have no idea where to start
azamat

Answer:

Download Ptable, it will show all of the elements, and you can click on them, and it will show all the information you need about them!

Explanation:

I hope this helps!!!!!

3 0
3 years ago
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Equal masses (in grams) of hydrogen gas and oxygen gas are reacted to form water. Which substance is limiting?
Sonbull [250]

Answer:

a. Oxygen gas is limiting

Explanation:

hydrogen gas and oxygen gas are reacted to form water

2H₂ + O₂  →  2H₂O

the above balanced equation shows that 2 moles of H₂ is required for 1 mole of O₂

Given equal masses of H₂ and O₂

assuming 'x' gm for each, no. of moles of each gas  =

no. of moles of H₂ = x/2 = 0.5x moles

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This shows that no. of moles of O₂ is very less so O₂ will become the limiting reagent.

3 0
4 years ago
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Glucose molecules are made up of carbon, hydrogen, and oxygen atoms. where do these atoms come from
suter [353]
Where do the hydrogen and oxygen atoms come from that become part of the glucose molecule made during photosynthesis? The oxygen molecules come from carbon dioxide and water. The hydrogen atoms come from water.

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5 0
3 years ago
if you were going to invent a new way to power your mobile phone which type of electromatic waves wiuld be most useful to invist
nadya68 [22]

It should be  <em>Ultraviolet rays </em>because they are moderate in energy.


3 0
3 years ago
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A 4 kg rock is rolling 10 m/s. Find its kinetic energy
Pavel [41]
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KE = 1/2(4)*10 m/s^2
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KE = 20 joules

Answer: 20 joules 
8 0
3 years ago
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