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liberstina [14]
3 years ago
5

I have a science fair soon and I need to make a interesting experiment but I want it to be easy in the same time. Can you please

help me out
Chemistry
2 answers:
alekssr [168]3 years ago
7 0
People love anything with bacteria.
agasfer [191]3 years ago
4 0
You should make a density trap, you get different liquids with different density's ( corn starch , water , alcohol , syrup) and pour them into a big vase and the different density's will sit on top of each other . the best thing to do is to use food coloring so that  each level is a different color.
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Which of the following best describes how an electron moves when it absorbs or releases exact amounts of energy?
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3 years ago
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What is the volume, in liters, of 3.75 moles of O2 gas at STP?
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1 mole ----------- 22.4 L ( at STP )
3.75 moles ----- ?

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7 0
3 years ago
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If 3 g of element C combine with 8 g of element D to form compound CD, how many grams of D are needed to form compound CD2?
bija089 [108]
<span>For the answer to the question above,
If 3g of element combines with 8g of D to form CD it means
1 mole of C = 3g
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8 0
3 years ago
How many liters of water would you need to add to 4.36 moles of NaCl to create a 9.4 M solution?
marishachu [46]

Answer:

0.464 L

Explanation:

Molarity (M) = number moles (n) ÷ volume (V)

According to the information given in this question:

number of moles (n) = 4.36 moles

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Volume = ?

Using M = n/V

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9.4V = 4.36

V = 4.36/9.4

V = 0.464 L

Hence, 0.464L of water are needed the volume of water.

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3 years ago
Ni4+ + _____e- LaTeX: \longrightarrow⟶ Nix+
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