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