Chemical Elements and Properties

Chemical Elements and Properties

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial discusses the properties of matter, focusing on physical and chemical properties. It explains how matter is classified into mixtures and pure substances, with further categorization into elements and compounds. The tutorial also covers the creation of chemical formulas and the concept of diatomic molecules, providing examples and explanations for each topic.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a physical property of matter?

Reactivity with acid

Color

Ability to rust

Flammability

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to iron when it reacts with water and oxygen?

It melts

It forms a new substance called rust

It evaporates

It remains unchanged

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can mixtures be described?

They are chemically combined

They can be separated into original substances

They have a fixed ratio of components

They are always homogeneous

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a pure substance that consists of only one kind of atom called?

Element

Mixture

Compound

Solution

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many naturally occurring elements are there approximately?

120

95

75

50

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for water?

O2H

H2O

HO2

H2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the first letter in a chemical formula?

It is always a symbol

It is always capitalized

It is always lowercase

It is always a number

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