What are the 4 types of bonds carbon can form and their structures

Answers

Answer 1

Answer: The most common bond carbon can form is a covalent bond. Carbon shares electrons with other atoms. This includes carbon-carbon bonds and carbon-hydrogen bonds. Another type of bond carbon can make is an ionic bond but this is a less common bond. For example is Calcium Carbide.

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A catalyst is _____.-Choices-
not used up in a reaction
the product of a combustion reaction
one of the reactants in a single-replacement reaction
a solid product of a reaction

Answers

Answer: Option (a) is the correct answer.

Explanation:

A catalyst is the substance which helps in increasing the rate of a reaction without itself getting consumed in the reaction.

A catalyst changes the path of reaction so that molecules with lower energy can easily participate in the reaction. As a result, formation of products increases.

Thus, we can conclude that out of the given options, a catalyst is not used up in a reaction.

A catalyst isn't used up in the reaction. It is only used to speed up the process of the reaction, but it isn't used up to form any new compounds

1. You were tasked to check if the liquid sample you have is a substance or a mixture.Which among these tasks is the BEST way to do so?
1. Color comparison
Il. Taste comparison
III. Boiling Test
iv.
Melting Test

Answers

Answer:

boiling test or melting test

Explanation:

Which types of bond is formed between the two chlorine atoms in a chlorine molecule?

Answers

Answer: D - a nonpolar covalent bond

Explanation: because opposites attract?

They achieve stable structures by sharing their single, unpaired electron.

If 62.0 grams of magnesium metal (Mg) react with 55.5 grams of oxygen gas (O2) in a synthesis reaction, how many grams of the excess reactant will be left over when the reaction is complete? Be sure to write out the balanced equation for this reaction and to show all of your work.

Answers

The balanced chemical equation would be as follows:

Mg + O2 → MgO2

We are given the amounts of the reactants. We need to determine first which one is the limiting reactant. We do as follows:

62.0 g Mg (1 mol / 24.31 g ) = 2.55 mol Mg
55.5 g O2 ( 1 mol / 32 g ) = 1.74 mol O2 -----> consumed completely and therefore the limiting reactant

2.55 mol - 1.74 mol O2( 1 mol Mg / 1 mol O2 ) = 0.81 mol Mg excess

Answer:

14.1648 grams of oxygen gas will be left.

Explanation:

$2Mg +O_2\rightarrow 2MgO$

Moles of magnesium metal = $(62.0 g)/(24 g/mol)=2.5833 mol$

Moles of oxygen gas = $(55.5 g)/(32 g/mol)=1.7343 mol$

According to reaction, 2 mol of magnesium react with 1 mol of oxygen gas .

Then 2.5833 moles of magnesium will react with:

$(1)/(2)* 2.5833 mol=1.29165 mol$ of oxygen gas.

Moles of oxygen left unreacted =1.7343 mol - 1.29165 mol = 0.44265 mol

Oxygen gas is an excessive reagent.

Mass of 0.44265 moles of oxygen gas:

0.44265 mol × 32 g/mol = 14.1648 g

14.1648 grams of oxygen gas will be left.

The liquids hexane and water are placed in a test tube. The test tube is stoppered, shaken, and placed in a test tube rack. The liquids separateinto two distinct layers because hexane and water have different
(1) formula masses
(2) molecular polarities
(3) pH values
(4) specific heats

Answers

Answer: option 2. molecular polarities

Explanation:

The liquids hexane and water are placed in a test tube. The test tube is stoppered, shaken, and placed in a test tube rack. The liquids separate into two distinct layers because hexane and water have different molecular polarities. The answer is number 2.

When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion? A.
+2

B.
-1

C.
+1

D.
-2

Answers

D. 2- youre adding two negative charges to a neutral element

The electrical charge of the oxygen ion is -2.

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