Lohr Chemistry Review 8th grade NC

Which of the following is NOT evidence of a chemical reaction?

When the products of a reaction weigh less than the reactants _________ was probably lost.

Alkali metals are in group _______ on the periodic table.

Can we create matter in the chemistry lab?

Which of these is a chemical reaction?

2Na + Cl₂ ------> ____NaCl What number should go in the blank to balance the equation?

Where are metalloids on the periodic table?

The periodic table is arranged by

Noble gases are in group _____ on the periodic table.

What is your favorite 8th grade class?

The small lower numbers in a written chemical reaction are called

When an experiment is done in a way that nothing can escape, it is called

Horizontal rows on the periodic table are called _______________?

Who created the modern periodic table?

SnCl₂ + 2FeCl₃ ----------> 2FeCl₂ + SnCl₄ How many atoms of Cl are in the products?

What is Ms. Lohr's favorite science word?

Halogens are in group ____ on the periodic table

What is the most important evidence of a chemical reaction?

Halogens are

The elements in a group have the same ____________

Substances that go into a chemical reaction are called the ____________.

The large numbers in front of molecules in a written chemical reaction are called

Vertical (up and down) columns on the periodic table are called?

How many atoms of Hydrogen are in 3H₂SO₄ ?

Metals are to the ______________ of the stair step line

Which of these is a NOT chemical reaction?

_______________ __________ will not react

What does ductile mean?

What does malleable mean?

What element is very important to the function of electronic devices