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Hatshy [7]
3 years ago
13

3. In which states of matter can materials take the shape of their containers?

Chemistry
2 answers:
adell [148]3 years ago
8 0

Answer:

A. liquid and gas

Explanation:

lbvjy [14]3 years ago
4 0
Liquid and gas is the answer
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What are all synthetic materials made from?
dolphi86 [110]

Answer:

Natural resources

Explanation:

4 0
2 years ago
When testing for hydrogen gas in the laboratory a glowing splint is inserted into the gas which results in a pop sound. What is
Advocard [28]
C. Exothermic reaction I guess
5 0
2 years ago
Which metal atoms can form ionic bonds by losing electrons from both the outermost and next to outermost principal energy levels
RoseWind [281]

Full question options;

(Fe, Pb, Mg, or Ca)

Answer:

Iron - Fe

Explanation:

We understand tht metals pretty much form bonds by losing their valence (outermost electrons). But this question specifically asks for metals that lose beyond their outermost electrons; next to outermost principal energy levels.

Pb, Mg, and Ca only lose their outermost electrons to form the following ions;

Pb2+, Mg2+, and Ca2+.

This is because their ions have achieved a stable octet configuration - the dreamland of atoms where they are satisfied and don't need to go into reactions again.

Iron on the other hand has the following electronic configurations;

Fe:  [Ar]4s2 3d6

Fe2+:  [Ar]4s0 3d6

Fe3+:  [Ar]4s0 3d5

This means ion can lose both the ooutermost electrons (4s) and next to outermost principal energy levels (3d). So correct option is Iron.

5 0
3 years ago
For each of the following statements, determine if the trend will increase or decrease. As you move from left to right across th
iren [92.7K]

Answer:

I just did the assignment it's "decreases"

Explanation:

If you guys came from Ed-genuity (i'm writing it like that because apperantly that is a swear word?) That means the next questions are "As you move from left to right across the periodic table, electronegativity..." and "As you move from top to bottom within a group, the first ionization energy...".

for electronegativity, it's increases and for ionization energy it's decreases. Hope this helps!

3 0
3 years ago
Read 2 more answers
Why is it important to heat analytical reagents and store them in a dessicated atmosphere before use?
schepotkina [342]

Explanation:

In normal atmosphere, analytical reagents may absorb water molecules that may affect the results of chemical reactions. So, in order to get accurate results from these analytical regents, they must be stored in a dessicated atmosphere or heated before being used so that the water molecules must dry away.

5 0
3 years ago
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