698832
Question 1
Question
What are atoms?
Answer
-
Molecules joined up
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The building blocks that everything is made from
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Mixtures of compounds
-
Not a clue
Question 2
Question
Atoms have a negative nucleus
Answer
- True
- False
Question 3
Question
If an atom loses an electron it becomes positively charged.
Answer
- True
- False
Question 4
Question
What is an ion?
Answer
-
Positively charged atoms
-
Neutral atoms
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Negatively charged atoms
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An atom with a net electric charge
-
I got no idea mate
Question 5
Question
An IONIC bond is where atoms share a pair of electrons and a COVALENT bond is where a positive and negative ion are attracted to one another and join together
Answer
- True
- False
Question 6
Question
What is the molecular formula of methane?
Answer
-
CH4
-
4CH
-
C4H
-
C4H4
-
What you on about?
Question 7
Question
How many of each atoms does methane contain?
Answer
-
4 Hydrogen, 4 Carbon
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4 Carbon, 1 Hydrogen
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4 Hydrogen, 1 Calcium
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4 Hydrogen, 1 Carbon
-
I'm sorry you've lost me
Question 8
Question
What is the displayed formula of CH3 (CH2)2 CH3?
Answer
-
Image:C5_H12 (image/jpg)
-
Image:C4_H8_O (image/jpg)
-
I don't understand this!
Question 9
Question
What is Na2CO3?
Answer
-
Magnesium carbonate
-
Sodium chloride
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Calcium carbonate
-
Sodium carbonate
-
Nope, not getting this