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3 years ago

The characteristics of two different types of reactions are shown downwards

Chemistry

2 answers:

a_sh-v [17]3 years ago

4 0

Answer:

Valence electrons are involved in Reaction B but not in Reaction A.

Explanation:

The description of reaction A in which protons are lost or gained by the atom of the element is a nuclear reaction. In nuclear reactions, the nucleons which are the protons and neutrons drives the reaction. No valence electrons in the orbiting shells are involved in this kind of reaction. During this type of reaction, an atom changes it identity to that of another.

Reaction B in which no identity change occurs is a chemical reaction. In chemical reactions bonds are formed by the atoms using the valence electrons that orbits round the central nucleus. The atoms remain the same but it chose to attain stability and an inert configuration by losing or gaining electrons.

scoray [572]3 years ago

3 0

Answer:

Valence electrons are involved in Reaction B but not in Reaction A.

Explanation:

took the test

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There is no definite answer but scientists believe the of you go closer towards the earth's core it can get extremely hot.

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3 years ago

Ammonia (NH3) is one of the most common chemicals produced in the united states. it is used to make fertilizer and other product

Greeley [361]

Answer:

a) N2 is the limiting reactant

b) 1215.9 grams NH3

c) 2283.6 grams H2

Explanation:

Step 1: Data given

Mass of N2 = 1000 grams

Molar mass N2 = 28 g/mol

Mass of H2 = 2500 grams

Molar mass H2 = 2.02 g/mol

Step 2: The balanced equation

N2(g) +3H2(g) → 2NH3(g)

Step 3: Calculate moles N2

Moles N2 = mass N2 / molar mass N2

Moles N2 = 1000 grams / 28.0 g/mol

Moles N2 = 35.7 moles

Step 4: Calculate moles H2

Moles H2 = 2500 grams / 2.02 g/mol

Moles H2 = 1237.6 moles

Step 5: Calculate limiting reactant

For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3

N2 is the limiting reactant. There will be consumed 35.7 moles.

H2 is in excess. There will react 3*35.7 = 107.1 moles

There will remain 1237.6 - 107.1= 1130.5 moles H2

This is 1130.5 * 2.2 = 2283.6 grams H2

Step 6: Calculate moles NH3

For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3

For 35.7 moles N2 we'll have 2*35.7 = 71.4 moles NH3

Step 7: Calculate mass NH3

Mass NH3 = moles NH3 * molar mass NH3

Mass NH3 = 71.4 moles * 17.03 g/mol

Mass NH3 = 1215.9 grams NH3

7 0

3 years ago

GT bisects BN at point G. If BN = 24 find BG

LenaWriter [7]

Answer:

Explanation:

If GT bisects BN at point G, then point G would be in the middle of BN. So, since Bg and NG have to be equal and add up to 24, then the answer is 12.

4 0

3 years ago

Help me with all questions if you can!

Black_prince [1.1K]

31. B
32. C
33. C
34. C
35. A
36. A
I hope this help!

8 0

3 years ago

Read 2 more answers

If 14 moles of Oxygen burn how many moles of water are created? *

andrey2020 [161]

Answer:

A) 12 mol H2O.

Explanation:

Hello,

In this case, for the given reaction:

$2C_2H_6+7O_2\rightarrow 4CO_2 + 6 H_2O$

We notice that oxygen is in a 7:6 molar relationship with water, for that reason, the resulting moles of water turn out:

$n_{H_2O}=14molO_2*\frac{6molH_2O}{7molO_2} \\\\n_{H_2O}=12molH_2O$

Thus, the answer is A) 12 mol H2O.

Best regards.

6 0

3 years ago