Chemical reactions

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61 questions

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8

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	Electron	Neutron	Proton
NOT found in the nucleus
Has no charge
Has +1 charge
Has -1 charge
Identifier of the element
Has almost no mass

Chemical reactions

Chemical reactions

Explain why you chose your answer for #2.

Copper

Fluorine

Au

Ge

State one way that you could speed up the rate of a chemical reaction.

Where is most of the mass of the atom found?

Explain why you chose your answer for #2.

Select the type of subatomic particle that matchs the statement.

If you see something in the classroom or laboratory that is dangerous, tell the teacher

Any spill on the floor can cause an accident. Always clean it up

When you work with laboratory chemicals and bunsen burners, long hair must be

What is the smallest particle into which an element can be divided and still be the same substance?

What part of the atom has a positive charge?

What part of the atom has a negative charge?

What part of the atom has a no charge?

What is found in the center of an atom

What subatomic particles are found in the nucleus? Check all that apply

On a drawing a proton is shown with the symbol____?

On a drawing a electron is shown with the symbol____?

An electron is found...

The main parts of an atom are?

Isotopes are atoms of the same element with the same number of protons and

What is the maximum number of electrons that are allowed on the second shell/orbit?

An atom becomes negatively charged by

Potassium has an atomic number of 19 and a mass number of 39. So, it has _________________neutrons.

Which statement is true about the Periodic Table?

In the Periodic Table, the vertical columns that extend down the Periodic Table are called

Hydrogen is located in Group_________of the Periodic Table.

Which scientist is credited with inventing the Periodic Table?

In the Modern Periodic Table, the elements are arranged in order of

Copper

Fluorine

Au

Ge

Why does Tungsten have a chemical symbol W?

Select the general properties of metals:

What is the bunsen burner used for?

What is an example of an exothermic reaction?

Endothermic reactions release energy stored in chemical bonds.

A balanced equation demonstrates...

State one way that you could speed up the rate of a chemical reaction.

What characteristics do endthermic reactions have? (select all that apply)

What characteristics do exothermic reactions have? (select all that apply)

Select two examples of endothermic reactions.

Select two examples of exothermic reactions.

Which statement best describes the image.

What group is column 2

What Group is Column 17?

What Group is Column 18?

Why does Tungsten have a chemical symbol W?

What is the bunsen burner used for?

The utility clamp and the iron ring can both be attached to help hold beakers, test tubes, and flasks.

You do not need to wear safety glasses if you have eye glasses or contacts.

It is ok to put your hand on the pan if you want to know how much it mass it has.

This tool is best used to meausre the volume of liquids

This tool is used to hold liquids while heating in the bunsen burner.