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Bonding
Periodic Table
Elements & Compounds & Mixtures... Oh my!
Reactions
Atom
100

How is a covalent bond formed (think electrons)?

Electrons are shared between two atoms

100

The atomic number of an element represents the number of ______ in an atom?

Protons

100

What substance can NOT be broken down into simpler substances?

An element

100

What does exothermic mean?

Heat exits/is released making it feel hotter

100

What part of an atom contains the positive charges

Nucleus/Protons located in the nucleus

200

How is an ionic bond formed (think electrons)?

Electrons are transferred from one atom to another 

200

Elements are arranged in the periodic table according to increasing...

Atomic number

200

Salt (NaCl) can be identified as a ________.

Ionic Compound

200

This type of chemical reaction combines together individual elements to form a compound?

Synthesis 

200

What are valence electrons?

Electrons located in the outermost shell of an atom

300

Why do atoms form bonds?

To become more stable

300

In group 1 of the periodic table and are very reactive are the ……

Alkali Metals

300

What type of reaction is shown below?

CH + O2  —> CO2  + H2O

Combustion

300

What is a chemical reaction?

a new substance/product is made

300

How many different types of atoms make up a molecule of carbon dioxide (CO2)?

2 different types of atoms (C and O)

400

Carbon (C) has 6 electrons in it's valence (outer) shell.  Which atom is Carbon likely to bond with?

Sulfur (6 valence electrons.)

Bromine (7 valence electrons)

Beryllium (2 valence electrons)

Hydrogen (1valence electron)

Beryllium (2 valence electrons)

400

Why are noble gasses (Group 18) so unreactive?

Their outer shell is full

400

Predict the product and balance

Ca + O2  —>

2Ca + O2  —> 2CaO

400

This type of chemical reaction causes one compound to split into individual elements

Decomposition

400

When is an atom most stable?

When it has a full outer shell (typically 8 valence electrons)

500
How many bonding and lone pairs are involved in the compound that makes up water

2 bonding 2 lone pairs

500

How many neutrons does an atom of copper (Cu) contain if the atomic number is 29 and the atomic mass is 63?

34 neutrons

500

Predict the products and balance

HCl + Ba(OH)2  —> 

2HCl + Ba(OH)2  —> BaCl2  +  2H2 O



500

Create a balanced chemical question from the following skeleton equation:

CH4 + O2 --> CO2 + H2O

CH4 + 2O2 --> CO2 + 2H2O

500

Identify the products of the following reaction:

 Mg + O2 --> 

Reactants: Mg and O2

Products: MgO