Chemistry

Question 1

Element

Answer 1

A pure substance that cannot be broken down

Question 2

Compound

Answer 2

A substance that contains two or more different elements

Question 3

Mechanical mixutre

Answer 3

A mixture in which the substance is distinguishable from each other

Question 4

Solution

Answer 4

A mixture of 2 or more substances but looks like a pure substance

Question 5

Qualitative substance

Answer 5

A description of an object, it attributes

Question 6

Quantitative

Answer 6

A descriptions providing numbers

Question 7

Physical property

Answer 7

a substance that can be found without changing the form

Question 8

Chemical property

Answer 8

Characteristics of a substance that are determined when the form is changed

Question 9

Solids characteristics

Answer 9

The particles have forces of atttaction strong enough to hold them together

Question 10

Liquid characteristics

Answer 10

The particles are still close however they can slide past each other

Question 11

Gas characteristics

Answer 11

Particles are very far apart

Question 12

Dalton

Answer 12

-proposed that all matter is made of tiny particles
- atoms of an element are the same
-atoms of a diff element are diff
-atoms are switched to form new substances

Question 13

Rutherford

Answer 13

• center of an atom have positive charge (nuculus)
  -it’s surrounded by a negative electrons cloud
• most atoms are empty

Question 14

Bhor

Answer 14

• drawing that shows the numbers and locations of protons neutrons and electrons

Question 15

Non-metals

Answer 15

An element that does not conducts heat or electricity

Question 16

Metal

Answer 16

An element that does conduct heat and electricity