Matter
Which state of matter will typically form a crystalline structure?
Solid
What is the name of the polyatomic anion with a minus 1 charge? ClO3?
Chlorate
In the reaction H2(g) + Cl2(g) forms 2HCl(g), the symbol (g) indicates what?
The state, a gas.
Group 1 elements are called?
Alkali metals
How many molecules are in a mole of sugar?
6.02x1023
Lustre
Name the following compound. Ca(OH)2
Calcium hydroxide
FeCl3
What is the main element that makes up gases the atmosphere?
Nitrogen
What is the molar mass of CaCO3?
100.09g/mol
The elements which are touching the "staircase" are called...
Metalloids
Name the following compound.
S5O9
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
Where on the periodic table would you be likely to find a gas whose molecules consist of single atoms?
Noble gases
If 2.5mol of NaOH is dissolved in 15L of water, what is the concentration of the solution? (C=n/V)
0.17mol/L
A lava lamp is a type of _______ mixture.
Heterogeneous
What is the molecular formula for dinitrogen pentoxide?
N2O5
When hydrogen and oxygen react to form water. What type of reaction is this?
Combustion (synthesis)
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
How many moles are in 46.1g of NH4Cl? (n = m/Molar Mass)
0.862 mol
The two elements on the periodic table that are liquid at room temperature.
Substances that conduct electricity when dissolved in water are called?
Electrolytes
What are the products of an incomplete combustion reaction?
CO, C, CO2, and H2O
Which element is the most reactive on the periodic table?
Fluorine
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