Balancing Chemical Equations with Beryllium

The video tutorial explains how to balance the chemical equation for the reaction between beryllium and oxygen gas to form beryllium oxide. Initially, the equation is unbalanced with unequal numbers of oxygen atoms. By adjusting coefficients, the instructor demonstrates how to balance the oxygen atoms first, followed by the beryllium atoms, resulting in a balanced equation. The tutorial concludes with a summary of the balanced equation.

What is the initial imbalance in the chemical equation involving beryllium and oxygen?

• The number of oxygen atoms is equal on both sides.

• There are more beryllium atoms on the reactant side.

• The number of beryllium atoms is equal on both sides.

• There are more oxygen atoms on the reactant side.

How can we balance the oxygen atoms in the equation?

• By removing oxygen atoms from the reactant side.

• By changing the subscript of oxygen.

• By adding more beryllium atoms.

• By adding a coefficient in front of beryllium oxide.

What is the effect of adding a coefficient of 2 in front of beryllium oxide?

• It balances the oxygen atoms only.

• It balances both beryllium and oxygen atoms.

• It unbalances the equation further.

• It balances the beryllium atoms only.

Why is it easy to balance beryllium atoms in this equation?

• Because beryllium is a liquid at room temperature.

• Because beryllium is already balanced.

• Because beryllium is by itself and does not affect other atoms.

• Because beryllium is a noble gas.

What coefficient is added in front of beryllium to balance the equation?

• 2

• 3

• 1

• 4

What indicates that the chemical equation is balanced?

• The number of molecules is the same on both sides.

• The number of atoms of each element is the same on both sides.

• The equation has no subscripts.

• The equation has no coefficients.

What is the final balanced equation for the reaction between beryllium and oxygen?

• 2Be + O2 → Be2O

• Be + 2O2 → BeO2

• 2Be + O2 → 2BeO

• Be + O2 → BeO