Science

What are molecular compounds

Non-metal elements sharing electrons to form molecules that are stable

If the group number is 17, what is the valence?

7

What is special about group 18?

All noble gases which makes themm unreactive due to the FULL valence shell

What type of bond does molecular compound have?

covalent bond. They bond together to be stable

What are the diatomic molecules

H O F Br I N Cl

Is bromide in liquid state, solid state or gas state

Liquid

What is the first name rule for molecular compound

Are both elements non-metals?

Do you write prefix for the first element if there is only one atom? For molecular compounds

No

Do you write prefixes for the second element. For molecular compound

You ALWAYS write prefix.

What is the name for O3

Ozone

What is the name for CH4

Methane

What is the name for C6 H12 O6

Glucose

What is the name for ammonia

NH3

What are Ionic Compounds

Metal elements and non-metal elements will form a bond by transferring electrons. NOT sharing.

WHat is the type of bond for ionic compounds

Ionic bond where metals LOSE electrons and non-metals GAIN electrons

What are Lewis Ion DIagrams for?

Ionic Compound

What is the name of this?

Lewis Ion Diagram

If a element gains electrons, is it positively charged?

No, it becomes negatively charged

What does it mean if - Be +2

Beryllium lost 2 electrons

What does monovalent mean?

There’s only one charge

If it is an ionic compound what is special when converting the name to formula.

You have to write the ion charges above the symbol

Do you write prefixes when naming ionic compounds

No

If the ion charge is 1, what happens?

You don’t writrte the 1, you just write the element name

What is special about naming multivalent metals?

You have to write roman numeral

What are Ionic Equation

A way to show how a reaction can happen to make a product

What is Law of Conservatiobn of Mass?

Matter can not be created or destoroyed in a closed system

What are synthesis reactions

When 2 reactans make 1 product

What are decompositon reactions

When 1 reactant breaks down into 2 or more products

ammonia gas → nitrogen gas + hydrogen gas. Is this decomposition or synthesis

Decomp

aluminum metal + liquid bromine → aluminum bromide crystal. Is this decomposition or synthesis?

Synthesis

What are single displacement reactions?

When a metal takes the place of a metal in solution. ONLY if it is more reactive

What type of reaction is that?

Single Displacement

What are double displacement reactions

The second part of two compounds will switch places to form two new compounds

Is that double displacement or single displacement

Double displacement

What are acids

A chemical that has hydrogen ions. H+

What are bases

A chemical that has hydroxide ions. OH-

What is netural on the pH scale

Water

\