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Paraphin [41]
4 years ago
11

What is four thing the atmosphere does for us

Chemistry
2 answers:
pogonyaev4 years ago
5 0
Proveds us air to breath and keeps the hot air out sory but only got 2
artcher [175]4 years ago
4 0
Keeps in heat, protects us from radiation, provides oxygen, and protects us from objects coming towards the earth.
You might be interested in
What is the most mass of (NH4)2CO3 (H=1,C=12,N=14,O=16
Agata [3.3K]

Answer:

96.09 g/mol

Explanation:

You just need to first get the atomic weights of the elements involved. You can easily get these from your periodic table.

If you are going to do this properly, please use the weight with at least two decimal places for accuracy (e.g. 15.99 g/mol).

Also, please take note that I will be using the unit g/mol for all the weights. Thus,

Step 1

N = 14.01 g/mol

H = 1.008 g/mol

O = 16.00 g/mol

C = 12.01 g/mol

Since your compound is  

(

N

H

4

)

2

C

O

3

, you need to multiply the atomic weights by their subscripts. Therefore,

Step 2

N = 14.01 g/mol × 2 =

28.02 g/mol

H = 1.008 g/mol × (4×2) =

8.064 g/mol

 

O = 16.00 g/mol × 3 =

48.00 g/mol

C = 12.01 g/mol × 1 =

12.00 g/mol

To get the mass of the substance, we need to add all the weights from Step 2.

Step 3

molar mass of

(

NH

4

)

2

CO

3

=

(28.02 + 8.064 + 48.00 + 12.01) g/mol

=

96.09 g/mol

this is a google search and a example i hope is helps to solve

6 0
3 years ago
Please help!!
gregori [183]

Answer:

6.02 * 10^23 atoms

Explanation:

Avogadro's number

4 0
4 years ago
Which element represents z?
olga nikolaevna [1]

Answer:

Z in chemistry means atomic number but I guess there is 'Zahl'

6 0
3 years ago
Translate the triangle left 1 units and up 5 units what are the coordinates of point c after the translation
olasank [31]

Answer:

gosh I think it's the earth of example of example a lot is reversible for you and climate science professor and bottom up is reversible in the context and bottom lines

5 0
3 years ago
Calcium has an atomic number of 20 and 2 valence electrons. Oxygen has an atomic number of 8 and 6 valence electrons. Neon has a
Arlecino [84]

Calcium is in group 2 period 4 of periodic table

Oxygen is in group 16 and period 2

neon is in period 2 and group 16.

Explanation:

Valence electron in calcium =2

valence electron in oxygen= 6

valence electron in neon= 8 valence electron.

 Calcium is placed in s block group 2 of period 4.

oxygen is placed in period 2 and group 16

Neon is a p block element, placed in period 2 and group 16.

Calcium is a elecropositive element which can share or donates its electrons to for compound, it has oxidation state of +2 and hence placed in group 2

Oxygen is electronegative as it can accept or share 2 electrons to form a bond. It has oxidation of -2.

Example is CaO.

Neon has its outer shell complete it is an inert element which will not share or donate electrons. it has oxidation state of 0

5 0
3 years ago
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