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KATRIN_1 [288]
3 years ago
13

লবণ ও বালুর মিশ্রন পরীক্ষা​

Chemistry
1 answer:
bija089 [108]3 years ago
3 0

Answer:

cause it has more

space between molecules.

O C. Ice has a higher density than li

Explanation:

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What is the product of silver nitrate + lead ii nitrate?
Kisachek [45]

Answer:

Explanation:

In theory, not much of anything. The vast majority of nitrates are water soluble. Aside, not sure what chemistry level you are at but you will probably be asked to know or memorize some solubility rules. This, for lack of a better phrase, Nitrate rule, is near spot on. With one exception—a rare one—all metal cationic nitrates are soluble in water. All of them. So, assuming you are talking about aqueous, water-based solutions of these salts and mixing them together, I expect nothing to occur. Both solutions, I believe are colorless in water and will thus remain so. If you had say a solution of Iron (III) nitrate and copper (II) nitrate, slightly different story. Both are colorful solutions and I would think you might see blending of colors but no reaction; no precipitate will form. You will probably learn about markers of a chemical reaction. One of these is a color change. Note, you should read this as a change of color from what you previously had. Going from red to blue or colorless to colored (or vice versa) is a strong indication of a reaction (e. g. evidence of bond-breaking and bond-formation). The mere mixing of colors does not constitute a chemical reaction.

3 0
2 years ago
Water is unusual because it expands as it freezes, Very few substances have this property. The reason liquid water is more dense
Ymorist [56]

Answer:

When liquid water is cooled, it contracts until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%. When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

4 0
3 years ago
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Which of element has the most valence rings?
MArishka [77]

Answer:

Elements in the Group 18

Explanation:

8 0
2 years ago
Question 4
adelina 88 [10]

Answer:

22.29%

Explanation:

Percent yield = experimental yield / theoretical yield * 100

= 12.89 / 57.82 * 100 = 22.29%

7 0
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H2O(s) is classified as
Inga [223]
H2O is classified as water.

Hope this helps! God bless
-vf
8 0
3 years ago
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