Each of these beakers contains the same substance, they are in different states. Which has the lowest kinetic energy?

can't be determined because I don't know the temperature

Which of the following is true about halogens?

they have seven valence electrons

they have two valence electrons

they have eight valence electrons

The atomic number of an atom represents:

# of protons and electrons (if atom is neutral)

# of protons, electrons, and neutrons

the location of an atom on the periodic table

a substance that cannot be split into simpler substances

a substance that can be split into simpler substances

A pure substance that is a compound is made out of

particles of more than one type of atom

particles of the same type of atom

a mixture of two or more substances that can be physically separated

In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and

atoms rearrange and form new bonds to make the products.

atoms remain the same and do not form new bonds to make the proudcts

Covalent bonds form when

pairs of electrons are shared between two atoms.

the electronegativity difference between two atoms is very large.

electrons are completely transferred between two atoms.

ions are held together by opposite charges.

An ionic bond forms when

valence electrons are transferred from one atom to another, forming charged ions that are then pulled together by attraction between opposite charges

valence electrons are shared back and forth (move between) two atoms.

a sea of mobile electrons surround the cations and they then become negativly charged

In an atom, _____ are found in the nucleus, and _______ are found orbiting the nucleus.

protons and neutrons; electrons

electrons; protons and neutrons

The atomic number of an atom represents:

# of protons and electrons (if atom is neutral)

# of protons, electrons, and neutrons

Why are noble gases non-reactive?

their valence orbitals are completely occupied

they have atoms which are bonded to one another

How does a balanced chemical equation support the law of conservation of matter?

It shows that all the matter present at the beginning of a reaction is still there at the end of a chemical reaction.

It shows that matter is both created and destroyed in a chemical reaction.

It shows that matter was created in a chemical reaction.

It shows that matter was destroyed in a chemical reaction.

anything that has mass and takes up space

anything that does NOT have mass and does NOT take up space

Chemistry benchmark 2020-2021

Authored by Nicole Watson

Science, Chemistry

10th - 12th Grade

NGSS covered

Used 64+ times

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Definite volume but not definite shape

solid

liquid

gas

solid, liquid and gas

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Change of state from a solid directly to a gas is called

deposition

melting

evaporation

sublimation

water is heated and changed to steam

physical change

chemical change

Temperature is the measurement of which type of energy?ABCD

chemical

mechanical

potential

kinetic

How close a measurement is to the true value is called..

Accuracy

Precision

Significant

Estimate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the volume of Object X?

10.0 cm³

15.0 cm³

20.0 cm³

25.0 cm³

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this?

Measuring tube

Test tube

Graduated Cylinder

Pipette

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Chemistry benchmark 2020-2021

Definite volume but not definite shape

Change of state from a solid directly to a gas is called

water is heated and changed to steam

Temperature is the measurement of which type of energy?ABCD

How close a measurement is to the true value is called..

What is the volume of Object X?

What is this?

Italian Salad Dressing

Definite volume but not definite shape

Each of these beakers contains the same substance, they are in different states. Which has the lowest kinetic energy?

Access all questions and much more by creating a free account

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Popular Resources on Wayground

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