Podcast
Questions and Answers
What is the ratio in which O combines with H to form water (H2O)?
What is the ratio in which O combines with H to form water (H2O)?
- 1:2 (correct)
- 2:1
- 1:1
- 3:1
How many molecules of H2O are formed when 4 atoms of H combine with 2 atoms of O?
How many molecules of H2O are formed when 4 atoms of H combine with 2 atoms of O?
- 2 molecules
- 3 molecules (correct)
- 5 molecules
- 4 molecules
What is the term for the simple numerical ratios in which atoms combine to form molecules?
What is the term for the simple numerical ratios in which atoms combine to form molecules?
- Atomic theory
- Stoichiometry (correct)
- Chemical bonding
- Molecular structure
In stoichiometry, what does the term 'mole' represent?
In stoichiometry, what does the term 'mole' represent?
Which concept helps in understanding the quantities of reactants and products in a chemical reaction?
Which concept helps in understanding the quantities of reactants and products in a chemical reaction?
What is the definition of mole?
What is the definition of mole?
What is the ratio of carbon moles to chlorine moles needed for the preparation of C2Cl6 (hexachloroethane)?
What is the ratio of carbon moles to chlorine moles needed for the preparation of C2Cl6 (hexachloroethane)?
How many moles of carbon are required to combine with 4.87 moles of Cl to form C2Cl6 (hexachloroethane)?
How many moles of carbon are required to combine with 4.87 moles of Cl to form C2Cl6 (hexachloroethane)?
What is the molar mass of Si (Silicon) if 30.5g of Si corresponds to 2.65 moles?
What is the molar mass of Si (Silicon) if 30.5g of Si corresponds to 2.65 moles?
What is the formula weight of Na2CO3 (sodium carbonate) if the molecular weight is 106.0g?
What is the formula weight of Na2CO3 (sodium carbonate) if the molecular weight is 106.0g?
