4596576
Pregunta 1
Pregunta
Solution mining is an example of [blank_start]liquid[blank_end] mining.
Respuesta
-
liquid
Pregunta 2
Pregunta
The boiling point of Oxygen is -196ºC
Respuesta
- True
- False
Pregunta 3
Pregunta
The formula for Ammonia is NH3?
Respuesta
- True
- False
Pregunta 4
Pregunta
The formula for sodium sulfate is Na2CO3?
Respuesta
- True
- False
Pregunta 5
Pregunta
a [blank_start]vacuum[blank_end] is an example of nothing.
Respuesta
-
vacuum
Pregunta 6
Pregunta
If lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons, and electrons, respectively, is:
Respuesta
-
3, 4, 3
-
4, 3, 3
-
3, 3, 4
-
4, 4, 3
Pregunta 7
Pregunta
If Magnesium has an atomic number of 12 and a mass number of 24, the correct number of protons, neutrons, and electrons, respectively, is
Respuesta
-
8, 10, 12
-
12, 12, 12
-
12, 24, 12
-
24, 12, 12
Pregunta 8
Pregunta
The chemical element number for Potassium is [blank_start]19[blank_end]
Respuesta
-
19
Pregunta 9
Pregunta
atomic number = number of [blank_start]protons[blank_end].
Respuesta
-
protons
Pregunta 10
Pregunta
Which of the following are organic compounds? (3 answers)
Respuesta
-
C2H4
-
NaHCO3
-
C2H5OH
-
CH3COOH
-
C02
-
CuCO3
Pregunta 11
Pregunta
Metal atoms form positive ions (cations) by passing [blank_start]electrons[blank_end] to non-metal atoms.
Respuesta
-
electrons
Pregunta 12
Pregunta
A metal ion has fewer electrons (-) than protons (+), so has an overall positive charge.
Respuesta
- True
- False
Pregunta 13
Pregunta
Metal atoms transfer outer electrons to non-metal atoms, leaving a shell of [blank_start]eight[blank_end].
Respuesta
-
eight
Pregunta 14
Pregunta
Group 1 elements have how many electrons in their outer shell?
Respuesta
-
2
-
1
-
4
-
3
Pregunta 15
Pregunta
The chemical number for Manganese (Mn) is
Respuesta
-
15
-
25
-
35
-
45
Pregunta 16
Pregunta
When non-metals react with each other they form covalent bonds, not ionic. The atoms share enough [blank_start]electrons[blank_end] to achieve the noble gas structure.
Respuesta
-
electrons
-
protons
-
neutrons
-
covalent bonds
Pregunta 17
Pregunta
Which type of bonding does chlorine gas (Cl2) and ethanol (C2H5OH) have?
Respuesta
-
Covalent
-
Ionic
Pregunta 18
Pregunta
An ion is
Respuesta
-
A strong atom
-
A weak atom
-
An atom that has lost or gained electrons
-
An atom that has lost or gained neutrons
Pregunta 19
Pregunta
A compound will have an ionic structure if it is made from
Respuesta
-
An alkali metal
-
A metal with one or more non-metals
-
Only metals
-
Only non-metals
Pregunta 20
Pregunta
When Sodium reacts with Chlorine, Sodium will
Respuesta
-
Share electrons with Chlorine
-
Swap electrons with Chlorine
-
Give one electron to Chlorine
-
Take one electron from Chlorine
Pregunta 21
Pregunta
The giant ionic structure of an ionic compound is called an ionic lattice.
Respuesta
- True
- False
Pregunta 22
Pregunta
Ionic compounds are brittle and shatter when hit.
Respuesta
- True
- False
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