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Atoms
Compounds
Reaction Types
General Chemistry
100

How many electrons does an argon atom have?

18

100

Magnesium and Chlorine combine to make what compound?

Magensium Chloride

100

A + B --> AB

What type of reaction does this show?

Synthesis

100

What range of pH are acids?

0 to 7

200

How many valence electrons does Magnesium have?

2

200

This type of compound is made of anions and cations, and includes a metal

Ionic

200

A neutralisation reaction occurs when mixing two things. What are those things?

Acid & Base

200

The period table can be broken up into groups and what?

periods

300

The atomic number in a NEUTRAL (not ion) atom is the same as the number of what:

1. Neutrons

2. Protons

3. Electrons

Protons

300

This type of compound is made of non-metals, where the atoms share electrons

Covalent

300
How are complete and incomplete combustion different?

Complete combustion will produce CO2 and H2O in the presence of enough oxygen.

Incomplete combustion will produce CO2, H2O, AND CO and C because there is not enough oxygen to turn all Carbon into CO2

300

True or False

The main gas in the atmosphere is oxygen because it's what we breathe

False

Nitrogen makes up 78% of the atmosphere, Oxygen only makes up 21%

400

The 3 subatomic particles of an atom are?

Electron, neutron, proton

400

What is the chemical formula for Magnesium Flouride?

MgF2

400
When mixing an acid and a metal we get hydrogen, when we mix an acid and a carbonate we get carbon dioxide.

How does a lit match behave in hydrogen and carbon dioxide?

Hydrogen - pop test, ignites gas

Carbon Dioxide - extinguished

400

Name 4 types of chemical reactions

Combustion, precipitation, synthesis, decomposition, neutralisation, displacement...
500

How many electrons can fit in the 3rd shell?

8

500

Ammonium Nitrate Chemical formula is NH4NO3

How many oxygen atoms in 6NH4NO3?


18

500

You know a precipitation reaction has occurred when...

A solid forms from the combination of two liquids.

500
What is the difference between the atomic number and the atomic mass of an atom?

Atomic number = number of protons

Atomic mass = mass of protons + neutrons