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Georgia [21]
3 years ago
7

How many moles of calcium atoms are in 77.4g of Ca?

Chemistry
1 answer:
lina2011 [118]3 years ago
6 0

Answer:

1.93 mol Ca

Explanation:

Use Calcium's molar mass to convert g of Ca into mol of Ca.

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Which statement best describes the compressibility of a gas?
atroni [7]

Hey there!


The answer to this question would most likely be the 3rd choice, (option C)


Increasing the pressure on a gas decreases the volume


Good luck on your assignment and enjoy your day!


~LoveYourselfFirst:)

7 0
3 years ago
FIRST ANSWER GETS CROWNED BRAINLIEST!!!!!!
Yakvenalex [24]

Answer:

75,900 g

Explanation:

m=d×v

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7 0
4 years ago
Which of the following is a necessary product of a combustion reaction?
BlackZzzverrR [31]

Answer:

Heat

Explanation:

explosions always make heat

8 0
3 years ago
c) If a mixture of zinc powder and cobalt(II) oxide is heated, the following reaction occurs: Zn(s) + COO(s) → ZnO(s) + Co(s) (i
bazaltina [42]

Answer:

The metal which reduces the other compound is the one higher in reactivity. So in this case, it is.

Explanation:

5 0
3 years ago
Match the following items.
navik [9.2K]

Answer:

1. not affected by a magnet                      1 liquid

2. mostly space                                          2 solid

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4. positively charged particles                  4 gas

5. free to move in all space                       5 alpha particles

6. negatively charged particles                 6 atoms

7. atoms nearly fixed in space                   7 gamma ray                                                    8. helium nucleus                                        8 electron (beta)

6 0
2 years ago
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