Chemistry Midterm Review

If there are 8 grams of product produced by the chemical reaction, how many grams of reactant were consumed?

• 0

• 2

• 6

• 8

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Use IUPAC nomenclature rules to properly identify this compound.

• potassium oxide

• dipotassium oxide

• potassium (I) oxide

• dipotassium monoxide

Tags

NGSS.MS-PS1-1

Carbon and fluorine combine covalently to form a binary compound. What is the formula of the compound with the name carbon tetrafluoride?

• C₄F

• C₄F₄

• CF

• CF₄

Tags

NGSS.MS-PS1-1

The word family implies that the elements in a family have like properties. What property do the elements of the noble gas family all share?

• They are not reactive

• They are very reactive

• They are found in the earth's atmosphere

• They react readily with oxygen in the air

Explain why the model of this chemical reaction obeys the Law of Conservation of Matter.

• because they both start and end with two sets of particles

• because they both start and end with the same types of particles

• because they both start and end with diatomic (two-atomed) molecules

• because there are the same number of atoms of each element shown on both sides

Tags

NGSS.MS-PS1-5

You are given two unknown solutions, A and B. One of the solutions contains water and table salt, and the other contains water and table sugar. Without any testing, using the data table and your knowledge of chemical bonds, you are able to determine which solution contains sugar and which contains salt. Which solution is which?

• A contains sugar and B contains salt, because

  salt is ionic and a good conductor of electricity.

• A contains salt and B contains sugar, because

  sugar is ionic and is a good conductor of electricity.

• A contains salt and B contains sugar, because

  salt is covalent and is poor conductor of electricity.

• A contains sugar and B contains salt, because

  sugar is covalent and is a good conductor of electricity.

Tags

NGSS.MS-PS1-2

The elements from this section of the periodic table all belong to the same

• Family

• Group

• Period

• Valence

Which one of the following is CORRECT about a solution?

• Solvent is the stuff and solute is the liquid

• Solvent is the liquid and solute is the stuff

• There is more solute than solvent in a solution

• All solutions are supersaturated

Which state of matter has the greatest distance between the individual particles?

• A

• B

• C

• all are the same

Tags

NGSS.MS-PS1-4

One radioactive isotope of calcium has an atomic mass of 47. How many neutrons are in this calcium-47 nucleus?

• 17

• 20

• 27

• 47