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solmaris [256]
3 years ago
14

What does the chemical formula CaCl2 show about the compound it represents? It is made up of one element. It is made up of two e

lements. It is made up of three elements. It is made up of four elements.
Chemistry
2 answers:
RideAnS [48]3 years ago
8 0
It is made up of 2 elements
KonstantinChe [14]3 years ago
8 0

Answer:

2

Explanation:

not 100%sure hehe

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When molecules have a shorter bond length does it take more or less energy to break the chemical bond between those atoms?
Sloan [31]

Answer:

more energy

Explanation:

shorter lengths in bonds require more energy because atoms are strongly connected in short length bonds

7 0
3 years ago
2. How much energy must be removed from a 50.0 g sample of steam in order to get it to condense
Strike441 [17]

Answer:

113 kJ or 113,000J

Explanation:

Since we are condensing it, a physical change in the state of matter is occurring. 113 kJ or 113,000J because of the following equation: Q = 2260 times 50.  2260 is the Heat of Vaporization constant.

5 0
3 years ago
You find a geode while hiking. You place it on a scale and find it has a mass of 62 g.
dexar [7]

Answer:

B

Explanation:

I think that's it.. hope I helped you

5 0
4 years ago
What is the single replacement reaction of Zinc + Lead(iv) Chloride
ExtremeBDS [4]

Answer:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Explanation:

Hello there!

In this case, when referring to single replacement reactions, it is crucial for us to figure out the formula of the starting reactants; thus, we know zinc is Zn and lead (IV) chloride is PbCl₄. In such a way, the reaction proceeds as follows:

Zn+PbCl_4\rightarrow ZnCl_2+Pb

Which must be balanced as shown below:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Regards!

4 0
3 years ago
A scientist has two substances that she is testing in her lab: a pink
ankoles [38]

Answer:

Weaker attraction between its molecules than the green substance. It's molecules now move away from each other.

Explanation:

Liquid to gas.

3 0
3 years ago
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