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Matter
Ions and Compounds
Reactions
The Periodic Table
Chemistry Calculations
100

Which state of matter will typically form a crystalline structure?

Solid

100

What is the name of the polyatomic anion with a minus 1 charge? ClO3?

Chlorate

100

In the reaction H2(g) + Cl2(g) forms 2HCl(g), the symbol (g) indicates what?

The state, a gas.

100

Group 1 elements are called?

Alkali metals

100

How many molecules are in a mole of sugar?

6.02x1023

200
Most metals have this property, the ability to reflect light.

Lustre

200

Name the following compound. Ca(OH)2

Calcium hydroxide

200
Iron3+ and molecular chlorine react to form iron chloride. What is the formula for the product?

FeCl3

200

What is the main element that makes up gases the atmosphere?

Nitrogen

200

What is the molar mass of CaCO3?

100.09g/mol

300

The elements which are touching the "staircase" are called...

Metalloids

300

Name the following compound.

S5O9

300

In the balanced equation for the reaction of pentane (C5H12) and molecular oxygen, what are the coefficients for the products CO2 and H2O respectively?

5 and 6

300

Where on the periodic table would you be likely to find a gas whose molecules consist of single atoms?

Noble gases

300

If 2.5mol of NaOH is dissolved in 15L of water, what is the concentration of the solution? (C=n/V)

0.17mol/L

400

A lava lamp is a type of _______ mixture.

Heterogeneous

400

What is the molecular formula for dinitrogen pentoxide?

N2O5

400

When hydrogen and oxygen react to form water. What type of reaction is this?

Combustion (synthesis)

400

What is the section of elements in the periodic table that is most likely to have elements forming variable charges on their cations?

Transition metals

400

How many moles are in 46.1g of NH4Cl? (n = m/Molar Mass)

0.862 mol

500

The two elements on the periodic table that are liquid at room temperature.

Bromine and Mercury.
500

Substances that conduct electricity when dissolved in water are called?

Electrolytes

500

What are the products of an incomplete combustion reaction?

CO, C, CO2, and H2O

500

Which element is the most reactive on the periodic table?

Fluorine

500

In the following reaction 1.50 mol of magnesium is reacted with excess oxygen gas, how many grams of magnesium oxide are produced? (m = n x Molar Mass)

2Mg(s) + O2(g) --> 2MgO(s)

60.5g