WorksheetsBonding & Reactions
Total questions: 17
Worksheet time: 9mins
How many single bonds will carbon look to make when it bonds covalently?
2
3
4
5
Which of the following elements does NOT form an ion with a charge of 2+?
Beryllium
Strontium
Magnesium
fluorine
When Alkali metals (Group 1) form ions, they ____.
lose 1 proton
gain 1 proton
lose 1 electron
gain 1 electron
How does fluorine (F) obey the octet rule when reacting to form compounds?
It doesn’t change its number of electrons
Fluorine does not obey the octet rule.
It gains electrons.
It gives up electrons.
Which of the following pairs of elements is most likely to form an ionic compound?
magnesium and fluorine
manganese and iron
oxygen and chlorine
sodium and aluminum
Which of the following shows correctly an ion pair and the ionic compound the two ions form?
Sn4+ and N3- form Sn4N3
Cu2+ and O2- form Cu2O2
Cr3+ and I- form CrI
Cr2+ and I- form CrI2
How many valence electrons are transferred from the sodium atom to fluoride in the formation of the compound sodium fluoride?
0
1
2
3
What is the chemical formula of sodium nitride?
NaN
Na2N
Na3N
NaN3
What is the balanced chemical formula of iron (II) oxide?
FeO
FeO2
Fe2O2
Fe2O
Select the correct formula for boron trichloride.
B2Cl
B3Cl
BCl3
BCl2
Which of the following is true about a balanced chemical equation?
Starting substances are called reactants, and ending substances are called products.
The reactants and products are separated by an arrow.
The equation must obey the Law of Conservation of Matter.
All of these are true.
AlCl3 + Na(OH) → Al(OH)3 + NaCl
In the chemical equation above, NaCl is a ______.
Catalyst
Solvent
Product
Reactant
MgCl2 + Na ---> NaCl + Mg
What type of reaction is shown by the equation?
Combination/Synthesis
Decomposition
Single Replacement
Double Replacement
What piece of evidence guarantees that a chemical change has occurred?
A change in shape or size
A change in the state of matter.
A change in temperature.
A new substance being created.
___Fe + ___O2 ---> ___Fe2O3
Which set of coefficients will correctly balance the equation?
Already Balanced (no coefficients needed)
2, 3, 4
4, 3, 2
3, 2, 2
How many chlorine (Cl) atoms are in 3MgCl2?
2
3
5
6
What type of reaction is electrolysis if its formula is:
2H2O → 2H2 + O2
Synthesis (Combination)
Decomposition
Single Replacement
Combustion
