IPC Semester 1 Exam

Front

How many Mn atoms are found in the compound 3Cr(MnO4)6?

Back

18

Tags

NGSS.MS-PS1-1

Front

How many electrons do most elements want to have in their outer shell to be stable?

Back

8

Front

What is the right part of a chemical equation called? (e.g., 2H2 + O2 --> 2H2O)

Back

Products

Front

If an object has a density of 3.6 g/mL, will it sink or float in water?

Back

Sink

Front

What is the total number of atoms present in 5Na3PO4?

Back

40

Tags

NGSS.MS-PS1-1

Front

What is the definition of density?

Back

Density is the mass of an object divided by its volume.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What are reactants in a chemical equation?

Back

Reactants are the starting substances in a chemical reaction.

Tags

NGSS.MS-PS1-1

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction.

Tags

NGSS.MS-PS1-1

Front

What does it mean for an element to be stable?

Back

An element is stable when its outer electron shell is full.