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Aliun [14]
3 years ago
9

Group I elements are metals with ................. density

Chemistry
1 answer:
kherson [118]3 years ago
8 0

group 1 elements are metals with<u> low</u> density

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2N2 + 3H2 → 2NH3
denis23 [38]

There are two N≡N bonds and three H–H  bonds are in reactants.

Given:

The reaction between nitrogen gas and hydrogen gas.

2N_2+3H_2\rightarrow 2NH_3

To find:

Bonds on the reactant side

Solution:

2N_2+3H_2\rightarrow 2NH_3

Reactants in the reaction = N_2, H_2

The bond between nitrogen atoms in single N_2 molecule  = N≡N (triple bond)

Then in two N_2  molecules = 2 N≡N (triple bonds)

The bond between hydrogen atoms in single H_2 molecule = H-H (single bond)

Then in three H_2  molecules = 3  H-H (single bonds)

Product in the reaction =NH_3

The bonds between nitrogen and hydrogen atoms in single NH_3 molecule = 3 N-H (single bond)

Then in two NH_3  molecules = 6  N-H (single bonds)

So, there are two N≡N bonds and three H–H bonds are in reactants.

Learn more about reactants and products here:

brainly.com/question/21517037?referrer=searchResults

brainly.com/question/20602904?referrer=searchResults

3 0
2 years ago
Becky wants to model an ecosystem. Which of the following modeling tools would best help her illustrate an ecosystem?
Firdavs [7]

Answer:

c

Explanation:

5 0
2 years ago
What is the pressure in a 5.00 L tank with 49.00 grams of oxygen gas at 350 K? ___atm
ziro4ka [17]

Answer:

The right answer is "8.81 atm".

Explanation:

Given:

V = 5.00 L

Mass = 4900 g

MW = 32 g/mol

T = 350 K

Now,

Number of moles will be:

n = \frac{Mass}{MW}

   =\frac{49.00}{32}

   =1.53125 \ mole

By using the ideal gas equation, we get

⇒ PV=nRT

or,

⇒    P=\frac{nRT}{V}

By substituting the values, we get

           =\frac{1.53125\times 0.0821\times 350}{5.00}

           =\frac{44.1}{5.00}

           =8.81 \ atm  

4 0
3 years ago
___________tiny solid particles in interstellar space thought to consist of a core of rocklike material (silicates) or graphite
crimeas [40]

Answer:

Interstellar medium

Explanation:

The interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.

5 0
3 years ago
How do animals get energy from food?
Amiraneli [1.4K]

Answer:

because plants have energy in them from the sun and

3 0
3 years ago
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