11A General Chemistry Review

Nomenclature

100

This element has the atomic symbol Rb.

What is Rubidium.

200

This is the name and formula of the compound made of barium and oxygen.

What is Ba₃N₂ (Barium nitride).

300

This element is located in Group 4A and Period 3.

What is Silicon (Si).

400

This acid has the formula HNO₃ (aq).

What is Nitric acid.

500

The name and formula for all polyatomic ions made with chlorine.

What are hypochlorite (HClO^-), chlorite (HClO₂^-), chlorate (HClO₃^-), and perchlorate (HClO₄^-).

Sig Figs

100

The number of significant figures in 0.5503.

What is 4 significant figures.

200

6.779 x 780 = ____ (correct sigfigs).

What is 5300.

300

54.7000 + 38.23 = ___ (with correct sig figs).

What is 92.93.

400

47800.0 + 782.23 = ___ (with correct sig figs)

What is 48582.2.

500

(297.36 + 9283) x 92.900 = ___ (with correct sig figs)

What is 890000.

Math

100

The molecular formula for a compound (C₅H₁₀) with a molar mass of 210g/mol and an empirical mass of 70g.

What is C₁₅H₃₀.

200

The amu of Ti is ___ with these natural abundances.

73.64 % is 49Ti with mass of 48.9479 amu

18.82 % is 50Ti with mass of 49.9448 amu

7.54 % is 48Ti with mass of 47.9479 amu

What is 49.06 amu.

300

3 NaOH(aq) + H₃PO₄(aq) → Na₃PO₄(aq) + 3 H₂O(l)

If 35.60 grams of NaOH is reacted with 30.80 grams of H₃PO₄. The limiting reactant is ____.

What is sodium hydroxide.

400

After adding a baby into a tub that contained 12.0 L of water, the water now measures 14.6 L. The baby weighs 6.51 Kg. The density of the baby is _______ (g/mL).

What is 2.50g/mL.

500

Polymers are large molecules composed of simple units repeated many times. This is the empirical formula for the polymer, Polyethylene, which is composed of 86% C and 14% H.

What is CH₂.

Conversions

100

There are __________ particles in one mole of substance. (Avogadro's #)

What is 6.022x10^(23).

200

There are ______ moles in 2.13 g of carbon.

What is 0.177 moles.

300

2839.4 micrograms coverted to centimeters.

What is 0.28394 centimeters.

400

The volume of a piece of Copper is 5.28 mL. It has a density of 2.79 g/cubic centimeter. There are ___________ moles of copper present.

What is 0.232 moles.

500

There is a chunk of graphite(C) that weighs 5.67x10^(10) nanograms. There are _______ moles of Carbon in that chunk of graphite.

What is 4.72 moles.

Definitions

100

This ion has a negative charge.

What is an anion.

200

Chicken noodle soup is an example of a _________ mixture. (Homogeneous or heterogeneous).

What is heterogeneous.

300

The difference between molecular and ionic compounds.

What is ionic transfers an electrons and molecular shares electrons.

Also accepted: ionic is between a metal and nonmetal and molecular is between two nonmetals.

400

Density, melting point, malleability, hardness, and color are all examples of _______ properties.

What is physical.

500

The definition of an acid.

What is a substance that releases hydrogen ions (H+) when dissolved in water.