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denis23 [38]
2 years ago
11

Plz help!!! This is timed!!!

Chemistry
1 answer:
pogonyaev2 years ago
7 0
58.7 %

Please correct me if I’m wrong. :)
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What mixture is it ?
joja [24]

The mixture should be

Heterogeneous

Explanation:

<u>D</u><u>e</u><u>f</u><u>i</u><u>n</u><u>i</u><u>t</u><u>i</u><u>o</u><u>n</u><u>:</u> Diverse in character or content.

7 0
3 years ago
Members of which group easily lose an electron to form a +1 cation?
vaieri [72.5K]
The alkali metals, which occupy group 1 of the periodic table. This is because the valence shells of these elements have only 1 electron, so easily form an ionic bond with a non-metal compound by donating this. A cation is formed by this donation, since there is one fewer electron orbiting the nucleus than there is in the atomic form - conversely an anion is formed when an atom gains an extra electron to become negatively charged.
4 0
3 years ago
Which index of refraction represents the least optically dense material? A. 1.58 B. 1.77 C. 2.65 D. 2.42
Zinaida [17]
Hello there.

<span>Which index of refraction represents the least optically dense material?

Answer: </span><span>A. 1.58</span>
7 0
3 years ago
Calculate the moles of octane needed to provide 0.065 mol or water.
gavmur [86]

Answer:

0.007 moles of octane

Explanation:

Balanced Equation: 2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O

0.065 mol H₂O * 2 mol C₈H₁₈/18 mol H₂O = 0.00722... = 0.007 mol C₈H₁₈

8 0
3 years ago
Hydrogen bonds can be found between molecules of which of the following
Lilit [14]

Answer:

The presence of hydrogen bonding between molecules of a substance indicates that the molecules are polar. This means the molecules will be soluble in a polar solvent such as water. Some examples of polar molecules which can hydrogen bond are ammonia ( NH3 ) and methanol ( CH3OH ).

I think the answer should be C

4 0
3 years ago
Read 2 more answers
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