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densk [106]
3 years ago
5

Which of the following best describes the relationship of solar UV radiation to the environment?

Chemistry
1 answer:
aliya0001 [1]3 years ago
4 0
<span> UV radiation are high energy radiations and they are mutation causing agents so
</span>Mutagen <span> best describes the relationship of solar UV radiation to the environment
so option A is correct
hope it helps</span>
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An atom of a mystery element contains 7 protons, 7 neutrons, and 7 electrons.
posledela

A-14

Explanation:

Mass number (MN) = Proton number + Neutron number

MN=7+7

MN=14

3 0
2 years ago
Anybody wanna help?????
boyakko [2]

Answer:

straight line down then left and right that should be it

Explanation:

7 0
3 years ago
Determine the length of the object shown <br>A. 97.8 mm<br>B. 97.80 mm<br>C. 97 mm<br>D. 98 mm​
jeka94

Answer:

A. 97.8 mm  

Explanation:

There are 10 divisions between 9 cm (90 mm) and the end of the ruler (10 cm or 100 mm).

Each division equals 1 mm.

Each 5 mm mark has a longer tick, and the dashed red line is between the 97 mm and 98 mm marks.

You would normally estimate to the nearest tenth of a division. An estimate of 0.8 mm is reasonable.

The length of the object is 97.0 mm + 0.8 mm = 97.8 mm.

B is wrong. You can't possibly estimate to the nearest hundredth of a division.  

C is wrong. The dashed red line slightly before the 98 mm mark.

D is wrong. If the dashed red line were exactly on the 98 mm mark, you would record the measurement as 98.0 mm. This indicates that you measured the object to zero tenths on either side of the mark.

 

6 0
3 years ago
What type of bonding occurs in a sample of pure sodium, ? In other words, how is one sodium atom held to another sodium atom? A.
NeX [460]

Answer:

The answer to your question is B. metallic

Explanation:

Covalent bonding is a bond between two nonmetals and the difference in electronegativity is between 0 and 1.7. Sodium could not have this kind of bond because is a metal.

Ionic bonding is a bond between a metal and a nonmetal and the difference of electronegativity is higher than 1.7. Sodium can have this kind of bond it is necessary one nonmetal.

Metallic, sodium has a metallic bond because this bond is characteristic of metals.

4 0
3 years ago
What family are the elements carbon, germanium and lead in?
grin007 [14]

Answer:

Damian here!! :))

The carbon family consists of the elements carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). Atoms of elements in this group have four valence electrons. The carbon family is also known as the carbon group, group 14, or the tetrels. Elements in this family are of key importance for semiconductor technology.

Explanation:

Hope this helps? :))

5 0
3 years ago
Read 2 more answers
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