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sladkih [1.3K]
2 years ago
7

What do most of the elements on the left of the periodic table have in common

Chemistry
1 answer:
elixir [45]2 years ago
7 0

Answer:

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements

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The primary anthropogenic source of atmospheric carbon dioxide (co2 ) is
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Burning of oil,gases and coal are the antropogenic source of co2 
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What causes hydrogen bonding? A.attraction between ions, B.motion of electrons, C.bonding of a covalently bonded hydrogen atom w
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In the Haber process, 30.00 g of nitrogen gas is combined with 30.00 g of hydrogen gas to form ammonia gas, NH3. What mass, in g
noname [10]

Answer:

Mass = 36.38 g

Explanation:

Given data:

Mass of hydrogen = 30.0 g

Mass of nitrogen = 30.0 g

Theoretical yield of reaction = ?

Mass of ammonia = ?

Chemical equation:

N₂+ 3H₂  → 2NH₃

Number of moles of N₂:

Number of moles  = Mass /molar mass

Number of moles = 30 g / 28 g/mol

Number of moles = 1.07 mol

Number of moles of H₂:

Number of moles = Mass /molar mass

Number of moles = 30 g / 2g/mol

Number of moles = 15 mol

Now we will compare the moles of NH₃ with hydrogen and nitrogen .

                 H₂             :                 NH₃

                 3               :                 2

                15              :                2/3×15= 10 mol

                 N₂             :                 NH₃

                 1                :                  2

               1.07             :               2 × 1.07= 2.14 mol

The number of moles of NH₃ produced by nitrogen are less it will be limiting reactant.

Mass of ammonia:

Mass of NH₃  = moles × molar mass

Mass =2.14 mol × 17 g/mol

Mass = 36.38 g

7 0
3 years ago
Please help if you know please and thanks ;)
GrogVix [38]

Answer:

it takes two hydrogen atoms for every oxygen atom to produce this reaction, so the mole ratio between hydrogen and oxygen is 2:1

8 0
3 years ago
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