Writing and Balancing Chemical Equations

Question 1

Use the periodic table to select the chemical symbol for each element.The symbol for carbon is ✔ C.Ca.Cm.

Revolt · Accepted Answer

✔ C.; C.; H.; N.; Fe.; Cu.

Question 2

The symbol for hydrogen is ✔ H.He.Ho.

Revolt · Accepted Answer

✔ H.

Question 3

The symbol for nitrogen is Ni.Nd.✔ N.

Revolt · Accepted Answer

✔ N.

Question 4

The symbol for iron is I.Ir.✔ Fe.

Revolt · Accepted Answer

✔ Fe.

Question 5

The symbol for copper is C.Co.✔ Cu.

Revolt · Accepted Answer

✔ Cu.

Question 6

Select the description of each substance given by each chemical formula. One molecule of O2 is made of X one atom of oxygen.one atom of osmium.two atoms of oxygen.

Revolt · Accepted Answer

two atoms of oxygen.; two atoms of aluminum to three atoms of oxygen.; potassium hydroxide.

Question 7

Question 7

Revolt · Accepted Answer

two atoms of oxygen.; two atoms of aluminum to three atoms of oxygen.; potassium hydroxide.

Question 8

Which of the following happens during a chemical change? Check all of the boxes that apply.

Revolt · Accepted Answer

New substances with different properties are formed.; Solids, liquids, or gases may form.

Question 9

The compound Al2O3 is made of one atom of aluminum to two atoms of oxygen.✔ two atoms of aluminum to three atoms of oxygen.one atom of aluminum, two atoms of iodine, and three atoms of oxygen.

Revolt · Accepted Answer

✔ two atoms of aluminum to three atoms of oxygen.

Question 10

The compound KOH is called calcium oxygen hydride.✔ potassium hydroxide.krypton hydroxyl.

Revolt · Accepted Answer

✔ potassium hydroxide.

Writing and Balancing Chemical Equations Answers

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