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n200080 [17]
2 years ago
13

You are explaining how heat transfers. Your friend insists that when you touch something cold, you become cold

Chemistry
1 answer:
Dmitrij [34]2 years ago
8 0

Answer:

its C

Explanation:

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Calculate the number of moles of Cl atoms in 1.81×10^24 formula units of magnesium chloride,MgCl2
rosijanka [135]
3.62*10^24 is the answer
5 0
3 years ago
What is the oxidation state of cr in CrPO4 and Cr3(PO4)2?
soldi70 [24.7K]

Answer:

Explanation:

Oxidation state of Cr in CrPO₄

As a general rule, the algebraic sum of all the oxidation numbers of all atoms in a neutral compound is zero.

The compound above is in its neutral state and we sum all the oxidation numbers and equate to zero:

The oxidation number of P is -2

                                           O is -2

Let the oxidation number of Cr be x:

                              x + (-2) + 4(-2) = 0

                              x -2-8 = 0

                               x -10 = 0

                                x = +10

For Cr in Cr₃(PO₄)₂

         Using the same rule:

        2(x) + 2[-2 + 4(-2)] = 0

           2x + 2(-2-8) = 0

            2x -20 = 0

                x = +10

6 0
3 years ago
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When an organic molecule loses hydrogen atoms it is said to be:_______.
Gnesinka [82]
C. Oxidized and reduced are the same.
7 0
3 years ago
Find the density of a substance with a mass of 45 grams and a volume of 9
Over [174]

Density = mass / volume

Density = (45g) / (9 [volume units])

Density = 5g / [volume unit]

There was no specification on the units of volume.  However, whatever it may be, just replace the square brackets with the value and your units will be correct.

6 0
3 years ago
___ replacement involves one element replacing another element in a compound.
Solnce55 [7]

Answer:

single

Explanation:

4 0
3 years ago
Read 2 more answers
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