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Afina-wow [57]
2 years ago
12

Please help meeee ;-;

Chemistry
2 answers:
insens350 [35]2 years ago
7 0

Answer:

12:B 13: 5 m/s 14: 5 m/s

Explanation:

12: this is a position vs time graph, and that worded description matches the graph because the slope of a p vs t graph is the velocity

13: again, the slope of a position vs time graph is the velocity. 10m/2s = 5 meters a second or m/s

14: same thing. the object travels 30 m in 6 s so 30/6=5 m/s

Elena-2011 [213]2 years ago
3 0

Answer:

number (12 is c)  (13 is 5) (14 is 5)

Explanation:

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I believe your answer would be B.
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2 years ago
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8 0
3 years ago
What element is this? How do you know?
postnew [5]

Atom is the most basic unit of matter. They are the general term used to describe pieces of matter. But a different kind of atom makes up an element.  A combination of atom of different elements creates a molecule. For example, you have water; it has a chemical formula of H2O. If you separate H from O, you have two atoms. Two atoms for hydrogen and one atom for oxygen. However, they are of different elements. And when you combine them to form H2O, you create a molecule.

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4 0
3 years ago
Consider the hypothetical reaction 3A + 4B → C + 2D Over an interval of 2.50 s the average rate of change of the concentration o
faust18 [17]

Answer:

Final [B] = 1.665 M

Explanation:

3A + 4B → C + 2D

Average rection rate = 3[A]/Δt = 4[B]/Δt = [C]/Δt = 2[D]/Δt

0.05600 M/s = 4 [B]/ 2.50 s

[B] = 0.035 M (concentration of B consumed)

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3 0
2 years ago
Helppppppppppppppppppppp
grandymaker [24]

Answer:

Formation of sedimentary rocks

Explanation:

I believe this is correct, May I get a brainliest???

3 0
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