Yup More Science Flashcards
Group
Vertical column of elements in the periodic table
Period
Horizontal row of elements on the periodic table
Physical change
A change where materials change from one state to another
Metal
Shiny, malleable, ductile element that conducts electricity
Closed system
No additional material is allowed to enter or leave
Exothermic
A chemical reaction that releases energy
Combustion
A chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
Corrosion
Slow chemical change that occurs when oxygen in the air reacts with metal
Endothermic
A chemical reaction that absorbs energy
Molecular compound
Pure substance that forms when two non metals combine
Chemical change
Change where two or more materials react and create new materials
Ionic compound
Pure substances formed when a non metal and metal combine
Electron shells
Orbits of Electrons around the nucleus of an atom
Non metal
Dull, brittle element that does not conduct electricity
Noble gas
The most stable and unreactive elements
Which of the following pairs of elements have the most in common.
- Fluorine and Oxygen
- Fluorine and Chlorine
- Sodium and Neon
- Sodium and Magnesium
Fluorine and Chlorine
Rutherford used the solar system to explain the model of an atom. The planets can be compared to?
Electrons
Metal or non metal? Aluminum Fluorine Lithium Phosphorus
Metal
Non metal
Metal
Non metal
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
Carbon hydrogen oxygen 8
Magnesium metal and hydrochloride acid question
Answer is d
Science question with the teacher and the cppo
Answer is c
11
B
9
A
10
D
8
A
Numerical response no 3
2 1 2
