Yup More Science

Question 1

Group

Answer 1

Vertical column of elements in the periodic table

Question 2

Period

Answer 2

Horizontal row of elements on the periodic table

Question 3

Physical change

Answer 3

A change where materials change from one state to another

Question 4

Metal

Answer 4

Shiny, malleable, ductile element that conducts electricity

Question 5

Closed system

Answer 5

No additional material is allowed to enter or leave

Question 6

Exothermic

Answer 6

A chemical reaction that releases energy

Question 7

Combustion

Answer 7

A chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy

Question 8

Corrosion

Answer 8

Slow chemical change that occurs when oxygen in the air reacts with metal

Question 9

Endothermic

Answer 9

A chemical reaction that absorbs energy

Question 10

Molecular compound

Answer 10

Pure substance that forms when two non metals combine

Question 11

Chemical change

Answer 11

Change where two or more materials react and create new materials

Question 12

Ionic compound

Answer 12

Pure substances formed when a non metal and metal combine

Question 13

Electron shells

Answer 13

Orbits of Electrons around the nucleus of an atom

Question 14

Non metal

Answer 14

Dull, brittle element that does not conduct electricity

Question 15

Noble gas

Answer 15

The most stable and unreactive elements

Question 16

Which of the following pairs of elements have the most in common.

• Fluorine and Oxygen
• Fluorine and Chlorine
• Sodium and Neon
• Sodium and Magnesium

Answer 16

Fluorine and Chlorine

Question 17

Rutherford used the solar system to explain the model of an atom. The planets can be compared to?

Answer 17

Electrons

Question 18

Metal or non metal?
Aluminum
Fluorine 
Lithium
Phosphorus

Answer 18

Metal
Non metal
Metal
Non metal

Question 19

Which of the following rows identifies both the elements and the total number of atoms that are present in one molecule of CH3COOH?

Carbon, helium, oxygen 3
Carbon, helium, oxygen 8
Carbon hydrogen oxygen 3
Carbon hydrogen oxygen 8

Answer 19

Carbon hydrogen oxygen 8

Question 20

Magnesium metal and hydrochloride acid question

Answer 20

Answer is d

Question 21

Science question with the teacher and the cppo

Answer 21

Answer is c

Question 22

11

Answer 22

B

Question 23

9

Answer 23

A

Question 24

10

Answer 24

D

Question 25

8

Answer 25

A

Question 26

Numerical response no 3

Answer 26

2 1 2