698832
Questão 1
Questão
What are atoms?
Responda
-
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
Questão 2
Questão
Atoms have a negative nucleus
Responda
- True
- False
Questão 3
Questão
If an atom loses an electron it becomes positively charged.
Responda
- True
- False
Questão 4
Questão
What is an ion?
Responda
-
Positively charged atoms
-
Neutral atoms
-
Negatively charged atoms
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An atom with a net electric charge
-
I got no idea mate
Questão 5
Questão
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
Responda
- True
- False
Questão 6
Questão
What is the molecular formula of methane?
Responda
-
CH4
-
4CH
-
C4H
-
C4H4
-
What you on about?
Questão 7
Questão
How many of each atoms does methane contain?
Responda
-
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
Questão 8
Questão
What is the displayed formula of CH3 (CH2)2 CH3?
Responda
-
Image:C5_H12 (image/jpg)
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Image:C4_H8_O (image/jpg)
-
I don't understand this!
Questão 9
Questão
What is Na2CO3?
Responda
-
Magnesium carbonate
-
Sodium chloride
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Calcium carbonate
-
Sodium carbonate
-
Nope, not getting this
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