Recap
How many isotopes does the element Copper have?
A
2
B
3
C
4
D
5
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Éléments de cette leçon
How many isotopes does the element Copper have?
A
2
B
3
C
4
D
5
Slide 1 - Quiz
What is the average atomic mass of Copper?
Slide 2 - Question ouverte
What does the Bohr model of a Ca2+ ion with mass number 26 look like?
12 p
14 n
2 e
8 e
0 e
Slide 3 - Question de remorquage
What is the name of the element Br
A
Boron
B
Beryllium
C
Bromine
D
Neon
Slide 4 - Quiz
Wat is de symbol of Chrome?
A
Cr
B
C
C
Cl
D
Ca
Slide 5 - Quiz
What is the name of the element Fe?
A
Iron
B
Magnesium
C
Nickel
D
Phosphorus
Slide 6 - Quiz
A molecular substance can conduct electricity...
A
In the liquid phase
B
In the solid phase
C
in the liquid and solid phase
D
a molecular substance does not conduct electricity
Slide 7 - Quiz
Which of these substances conducts electricity?
A
Fe(l)
B
NaNO3(s)
C
NaCl(l)
D
CO2(g)
Slide 8 - Quiz
Assign the substances to the correct group. Names and formulas of substances can be found in Chapter 4 and the Periodic Table.
METALEN
ZOUTEN
MOLECULAIRE STOFFEN
tungsten
calcium
broom
glucose
CuCl2
methane
lithium
ammonia
natriumchloride
Slide 9 - Question de remorquage
What is the systematic name of
PCl5
Slide 10 - Question ouverte
What is the systematic name of
NF3
Slide 11 - Question ouverte
Calculate the molecular mass of MgCl2
(Mg=24,31 Cl= 35,45)
(Mg=24,31 Cl= 35,45)
A
95,213
B
59,763
C
131,232
D
102,241
Slide 12 - Quiz
What is the mass percentage of carbon in glucose?
A
7%
B
40%
C
45%
D
20%
