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tamaranim1 [39]
3 years ago
14

ANSWER FIRST GET BRAINLY

Chemistry
2 answers:
mixas84 [53]3 years ago
6 0

Answer:

The correct answer is: 'adding the coefficient 3 in front of H_2 and the coefficient 2 in front of NH_3

Explanation:

N_2+H_2\rightarrow NH_3

Balancing of chemical equation, in which number of atoms of reactant element on left hand side are equal to number of atoms of same element on right hand side.

First add coefficient 2 in front of ammonia.

N_2+H_2\rightarrow 2NH_3

Then add coefficient 3 in front of hydrogen gas.

N_2+3H_2\rightarrow 2NH_3

Bezzdna [24]3 years ago
4 0
Answer:

Creating a chart that shows the number of atoms in the reactants and products.

Explanation:

This will help Kiley organize her information so that she can figure out how to balance the equation.
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A specific combination of bonded atoms which always react in the same way is known as
grigory [225]
A specific combination of bonded atoms which always react in the same way, regardless of the particular carbon skeleton is known as the functional group. These are specific groups of atoms or bonds within organic molecules that accounts for the characteristic chemical reactions of those molecules.  Examples of functional groups are the Carbonyl group, alkyl Halides, aldehydes and ketones among others.
4 0
4 years ago
An experiment was conducted with a 1.57 gram starting mass of copper. How many grams of cooper were collected if the yield was 8
IRINA_888 [86]

Answer:

1.26 g of Cu

Explanation:

Since we have to find the percentage of the given amount so...

Yield in grams = (Initial mass used / 100) x Percentage Yield

Yield in grams = (1.57 / 100) x 80.6 = 1.26 g of Cu

7 0
3 years ago
At 6pm, you see logs piled up for a campfire. Later you see flames and feel heat from it. At 8pm, only smoldering ashes remain.
mr_godi [17]

The process that took place is called oxidation or burning where wood was burnt into ashes.

<h3><u>Explanation:</u></h3>

Wood is an organic compound formed of different types of carbohydrates, proteins and lipids. These components do have carbon oxygen hydrogen as most abundant atoms and also has some amount of nitrogen, phosphorous, and other metal ions like magnesium, calcium etc.

When the logs were burnt, the chemical reaction took place between the atmospheric oxygen and the atoms present in the wood, forming different oxides. As carbon was the most abundant atom present, a huge smoke containing carbon dioxide and carbon monoxide evolved. The hydrogen became the water vapour, and other gases were also formed like nitrogen dioxide, sulphur dioxide etc. These gases went off into atmosphere. The rest that were left behind were mixture of unburnt part of wood as well as the solid metal oxides. There were unburnt particles of carbon mixed with them too.

8 0
3 years ago
What is the empirical formula for a substance that contains 3.730% hydrogen, 44.44% carbon, and 51.83% nitrogen by mass?\?
Vlada [557]

Given data:

Hydrogen (H) = 3.730 % by mass

Carbon (C) = 44.44%

Nitrogen (N) = 51.83 %

This means that if  the sample weighs 100 g then:

Mass of H = 3.730 g

Mass of C = 44.44 g

Mass of N = 51.83 g

Now, calculate the # moles of each element:

# moles of H = 3.730 g/ 1 g.mole-1 = 3.730 moles

# moles of C = 44.44/12 = 3.703 moles

# moles of N = 51.83/14 = 3.702 moles

Divide by the lowest # moles:

H = 3.730/3.702  = 1

C = 3.703/3.702 = 1

N = 3.702/3.702 = 1

Empirical Formula = HCN

3 0
3 years ago
What experiment did J.J thomson do?
Fittoniya [83]

Answer: C

Explanation:

7 0
3 years ago
Read 2 more answers
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