Lab Test Review

Ionic or Molecular/Covalent? NaCl

Ionic

Ionic or Molecular/Covalent? FeBr

Ionic

Ionic Bond

Contain one or more cations paired with one or more anions

Covalent Bond/Molecular Bond

Formed by two or more non metals

Ionic or Molecular/Covalent? H20?

Molecular/Covalent

Ionic or Molecular/Covalent? CO2?

Molecular/Covalent

If both sheets of litmus paper are blue what is it?

Base

If both sheets of litmus paper are red what is it?

Acid

If both sheets of litmus paper are the same as when they started what is it?

Neutral

Physical Change

There is a change in the appearance or form of the matter but the kind of matter does not

Chemical Change

The kind of matter changes and at least one new substance with new properties is formed

4 examples of chemical change

Burning, cooking, rusting, and rotting

4 examples of physical change

Boiling, melting, freezing, and shredding

Indications of chemical change

1. Color Change
2. Production of an odor
3. Change of Temperature
4. Evolution of a gas (formation of bubbles)
5. Precipitate (formation of a solid)

Indications of physical change

1. Change in size or shape
2. Change in state of matter
3. Reversible
4. No new substance formed

Practice Balancing Equations

I will

Synthesis

To elements or compounds combine

Decomposition

A compound is broken down into simpler substances, all the way down to the elements that makes it up

Combustion

A compound containing carbon (C) and hydrogen (H)(sometimes oxygen) combines with oxygen to produce water (H20) and carbon dioxide (CO2)

Single Replacement

One element that starts out by itself replaces another element in a compound kicking it out. Leaving the kicked out element alone

Double Displacement

The positive negative ions in two compounds switch places

The Law of Conservation Of Mass

Mass can not be created or destroyed it only changes shape

Steps to focus a microscope

1. Make sure the smallest objective lens is facing me (red)
2. Make sure slide is in the middle of the stage
3. Start with the coarse adjust knob (bigger one) to focus as much as possible
4. Use fine focus know to make sure slide is in focus
5. Without touching the focus knob shift to next objective
6. Only use fine adjust knob to focus when on small magnification

Microscope Label

sporcle.com

Three differences between plant and animal cells

1. Plant cells have cell walls
2. Animal cells have centrioles
3. Plant cells have chloroplasts

Plant Cell or Animal Cell

Animal Cell

Plant Cell or Animal Cell

Plant Cell

What stage of mitosis

Interphase

What stage of mitosis

Prophase

What stage of mitosis

Later Prophase

What stage of mitosis

Metaphase (everything in the middle)

What stage of mitosis

Early Anaphase

What stage of mitosis

Anaphase

What stage of mitosis

Telophase

What stage of mitosis

Cytokinesis