How are elements and compounds different?

A compound is a combination of two or more types of matter, an element is one type.

Compounds are represented by chemical symbols of one letter, elements by two.

here are an infinite number of elements, but a limited number of compounds.

Elements are always larger units of matter, and compounds are smaller.

Because atoms want 8 valence electrons

Because atoms have the same number of protons and electrons

If I gain electrons I become

negative because I've added electrons

Positive because I've added to my atom

equal because now I have electrons

what is the definition of chemical change?

any change that results in the formation of new chemical substances.

matter cannot be created or destroyed, only change form

changes affecting the form of a chemical substance, but not its chemical composition.

When a CHEMICAL reaction occurs, what is made?

A new substance is made, with existing atoms rearranged

A new substance is made with new atoms formed

All substances remain the same, but physical state may change.

What does this word equation represent: Iron + oxygen → Iron oxide

A chemical reactino between iron and oxygen, where rust (iron oxide) is produced

A physical change in iron (nothing new gets made)

A chemical reaction between iron and rust, where oxygen is produced

A physical change between iron and oxygen that forms a red color

Year 10 Chemical Reactions

Quiz

•

Chemistry

•

10th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-1, MS-PS1-2, HS-PS1-1

+16

Standards-aligned

Danielle Brownlee

Used 19+ times

FREE Resource

100 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

all matter is made of what

energy

atoms

electrons

compounds

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The positive particles of an atom are

electrons

positrons

neutrons

protons

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

the central region of an atom where its neutrons and protons are is its

nucleus

electron cloud

core

center

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

an atom with atomic number 6 would have how many protons

6

12

3

cannot be determined

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

True or False? Neutrons have a negative charge

True

False

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A particle that moves around the nucleus is a(n)...

Proton

Neutron

Electron

Quark

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What are the 3 particles that make-up the atom?

protons, neutrons, and isotopes

neutrons, isotopes, and electrons

positives, negatives, and electrons

protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

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Year 10 Chemical Reactions

100 questions

all matter is made of what

The positive particles of an atom are

the central region of an atom where its neutrons and protons are is its

an atom with atomic number 6 would have how many protons

True or False? Neutrons have a negative charge

A particle that moves around the nucleus is a(n)...

What are the 3 particles that make-up the atom?

What is the atomic symbol for sodium?

The chemical symbol for Oxygen is

Molecules are

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