WorksheetsChemistry Part 2
Total questions: 23
Worksheet time: 12mins
2H2 + O2 → ?
products
reactants
Which sequence is correct?
Products-Yields-Reactants
Reactants-Yields-Proportions
Reactants-Yields-Products
Yields-Reactants-Products
Salt
element
compound
Lithium
element
compound
O2
element
compound
NH3
Element
Compound
How many elements are in the following chemical equation?
2
3
4
5
How many total atoms are in the chemical formula?
2Fe2O3
10
8
7
5
How many total atoms are in the chemical formula?
C3H8NO5P
10
14
16
18
How many total atoms are in the chemical formula?
2Al2O3
5
10
15
20
Which of the following is NOT evidence of a chemical reaction?
bubbling
dissolving
burning
precipitate
Which of the following IS evidence of a chemical reaction?
dissolving
melting
evaporation
gases forming
Which of the following is the most reactive?
F
He
Ba
Na
Which of the following is the LEAST reactive?
F
Na
He
Ba
Which element is MORE reactive?
Ga
Ne
Which element is LESS reactive?Ga
Ga
Ne
Which element is LESS reactive?
Cl
Sn
Which element is MORE reactive?
Cl
Sn
What part of the atom IDENTIFIES the atom?
proton
neutron
electron
valence electron
What part of the atom identifies the chemical properties of the atom?
proton
neutron
electron
valence electron
What part of the atom determines if it will react with other elements?
proton
neutron
electron
valence electron
Which element will react like Ne?
He
F
Cl
O
Which element will react like Na?
Li
Be
Mg
Ca
