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Nuetrik [128]
3 years ago
7

A . When atoms share electrons to fill their outermost energy levels, they form _________ bonds.

Chemistry
1 answer:
klasskru [66]3 years ago
7 0
A. Covelant bonds
B. Ionic bonds
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3 years ago
Guys help me out please ​
kifflom [539]

Answer:

See explanation

Explanation:

A net ionic equation shows only the chemical species that are involved in a reaction, while a complete ionic equation also includes the spectator ions(Khan Academy).

From the species shown in the image we can write the molecular equation, ionic equation and net ionic equation and also identify the spectator ions.

Chemical equation: KX + BY --------> BX + AY

Ionic Equation; X^- + A^+ + B^+ + Y^- -----> BX + A^+ + Y^-

Spectator ions;  A^+ and Y^-

Net Ionic Equation; X^- + B^+ ------> BX

7 0
2 years ago
How many moles of CO2 are emitted into the atmosphere when 22.1 g C8H18 is burned
ANTONII [103]

Answer:

1.552 moles

Explanation:

First, we'll begin by writing a balanced equation for the reaction showing how C8H18 is burn in air to produce CO2.

This is illustrated below:

2C8H18 + 25O2 -> 16CO2 + 18H2O

Next, let us calculate the number of mole of C8H18 present in 22.1g of C8H18. This is illustrated below:

Molar Mass of C8H18 = (12x8) + (18x1) = 96 + 18 = 114g/mol

Mass of C8H18 = 22.1g

Mole of C8H18 =..?

Number of mole = Mass /Molar Mass

Mole of C8H18 = 22.1/144

Mole of C8H18 = 0.194 mole

From the balanced equation above,

2 moles of C8H18 produced 16 moles of CO2.

Therefore, 0.194 mole of C8H18 will produce = (0.194x16)/2 = 1.552 moles of CO2.

Therefore, 1.552 moles of CO2 are emitted into the atmosphere when 22.1 g C8H18 is burned

8 0
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A fuel scientist burnt a piece of coal and a piece of wood to compare the amount of heat given off by each. Which is the correct
zalisa [80]
The answer is a since its a physical to chemical change
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3 years ago
Read 2 more answers
Q # 4 in a polar covalent bond
Makovka662 [10]

Answer : The correct option is, electrons are not shared equally between atoms.

Explanation :

Polar covalent bond : It is a type of chemical bond in which a pair of electrons are not shared equally between the two atoms.

In polar covalent bond, the electrons are not shared equally because one atom spends more time with the electrons than the another atom. In this, one atom has more tendency to pull an electron than the other atom.

For example : H_2O is an example of polar covalent bond. In water molecule, oxygen spends more time with the electron than the hydrogen and oxygen carries a partial negative charge.

3 0
3 years ago
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