1. If the mass of calcium in a sample of Ca(HCO3)2 were equal, the number of...

1. If the mass of calcium in a sample of Ca(HCO3)2 were equal, the number of oxygen atoms in the Ca(HCO2)2 sample would be ______ the number of oxygen atoms in the Ca(HCO3)2

A. greater than
B. less than
C. equal to
D. cannot be determined

2. If the number of oxygen atoms in a sample of Ca(HCO2)2 and a sample of Ca(HCO3)2 were equal, the mass of calcium in the Ca(HCO2)2 sample would be ______ the mass of calcium in the Ca(HCO3)2 sample.

A. greater than
B. less than
C. equal to
D. cannot be determined

3. If the mass of oxygen in a sample of Ca(HCO2)2 and a sample of Ca(HCO3)2 were equal, the number of moles of the Ca(HCO2)2 sample would be _____ the number of moles of the Ca(HCO3)2 sample.

A. greater than
B. less than
C. equal to
D. cannot be determined

4. If the number of moles of a sample of Ca(HCO2)2 and a sample of Ca(HCO3)2 were equal, the mass of oxygen in the Ca(HCO2)2 sample would be ______ the mass of oxygen in the Ca(HCO3)2 sample.

A. greater than
B. less than
C. equal to
D. cannot be determined

Solutions

Expert Solution

1. If the mass of calcium in a sample of Ca(HCO3)2 were equal, the number of oxygen atoms in the Ca(HCO2)2 sample would be ______ the number of oxygen atoms in the Ca(HCO3)2

If they are the SAME in mass, then they are the same in MOLES. Then if this is true, then they are the same in MOLECULES, therefore, the SAME in ATOMS

the mass of each species are the SAME

3. If the mass of oxygen in a sample of Ca(HCO2)2 and a sample of Ca(HCO3)2 were equal, the number of moles of the Ca(HCO2)2 sample would be _____ the number of moles of the Ca(HCO3)2 sample.

number of moles is the SAME as sateted before

4. If the number of moles of a sample of Ca(HCO2)2 and a sample of Ca(HCO3)2 were equal, the mass of oxygen in the Ca(HCO2)2 sample would be ______ the mass of oxygen in the Ca(HCO3)2 sample.

mass of oxygen is the same, since the atoms of oxygen were the same

queen_honey_blossom answered 1 year ago

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