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Bingel [31]
2 years ago
8

PLZ ANSWER FOR BRAINLIEST

Chemistry
2 answers:
soldi70 [24.7K]2 years ago
5 0

Answer:

C

Explanation:

The ozone layer absorbs ultraviolet rays from the sun.

Stolb23 [73]2 years ago
3 0
It’s c, I’m sure of it
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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
Is CIF ionic or covalent?
butalik [34]

Answer:

Covalent

Explanation:

Chlorine monofluoride (ClF) is a chemical compound, and the atoms are connected by a single covalent bond.

6 0
2 years ago
To measure the volume of the blood system of an animal, the following experiment was done. A 1.0-mL sample of an aqueous solutio
Artyom0805 [142]

Answer:199mL

Explanation:

Let V ml be the volume of blood in animal.

When 1.0 ml sample is added, total volume becomes V+1.0ml. Its activity is 1000 dpm.

After equilibrium, 2.0 ml of the sample had activity of 10 dpm.

Hence, after equilibrium, the activity of V+1.0 ml of blood sample will be 10/2 (V+1.0ml)=1000dpm

Hence, V=199ml.

4 0
3 years ago
Which element has 12 protons 12 neutrons and 12 electrons
brilliants [131]

Answer:

Magnesium

Explanation:

Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure.

3 0
3 years ago
The chart shows the eight most common elements on Earth. Seventy-five percent of Earth's crust is made up of just two elements -
zzz [600]

Answer:

Al

Explanation:

it is the longest on the graph after the other 2

4 0
3 years ago
Read 2 more answers
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