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Evgen [1.6K]
3 years ago
7

Which of the following statements best represents a comparison of the two motions shown on the graphe

Chemistry
1 answer:
Scilla [17]3 years ago
3 0
I think is the second one
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What r variable's :) :) :) :) :)
zhannawk [14.2K]

Answer: an element, feature, or factor that is liable to vary or change.

"there are too many variables involved to make any meaningful predictions"

Explanation:

7 0
2 years ago
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Which step of desalination must be done before water is condensed and collected?
USPshnik [31]

the water is heated until it evaporates

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2 years ago
Be sure to answer all parts. Consider the following balanced redox reaction (do not include state of matter in your answers): 2C
timurjin [86]

Answer:

The specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

Explanation:

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

For the given chemical reaction:

2CrO_2^- + 6ClO^- + 2H_2O\rightarrow 2CrO_4^{2-} + 3Cl_2 + 4OH^-

The half cell reactions for the above reaction follows:

Oxidation half reaction:  CrO_2^- + 2H_2O + 4OH^-\rightarrow CrO_4^{2-} + 4H_2O + 3e^-

Reduction half reaction:  2ClO^- + 4H_2O + 2e^-\rightarrow Cl_2 + 2H_2O + 4OH^-

Thus, the specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

8 0
3 years ago
How many particles are in 4g of NaCl? (1mol of NaCl = 58g) – 2 step conversion
oksian1 [2.3K]

Answer:

4.16 * 10²⁴ particles

Explanation:

1. We convert from grams to moles

4 g NaCl / 58 g of NaCl = 0.0689655172 moles

-> 0.0690 moles

2. Now we will convert from moles to particles by multiplying by avogadro's number..

0.0690 * 6.022 *10²³ = 4.15518 * 10²⁴ particles or 4.16 * 10²⁴ particles

4 0
3 years ago
How many moles are in 4.6 x 10^19 atoms? <br><br> *#27 is the question
velikii [3]
There are 0.000076 moles in 4.6 x 10^19 atoms.
3 0
3 years ago
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