The number 2 in H 2
O indicates that there are(1 point)
Responses
½ as many Hydrogens as Oxygens
½ as many Hydrogens as Oxygens
Two atoms of Oxygen
Two atoms of Oxygen
Two atoms of Hydrogen
Two atoms of Hydrogen
Two molecules of water
Two molecules of water
The number 3 in 3O 2
indicates that there are(1 point)
Responses
3 subscripts
Three atoms of Oxygen
Three molecules of O2 (diatomic Oxygen)
⅓ the number of Oxygen atoms
Three molecules of O2 (diatomic Oxygen)
Matter cannot be created or destroyed.(1 point)
Responses
True
True
False
True
Which of the following is a bond defined by the sharing of electrons between two atoms?(1 point)
Responses
Hydrogen Bond
Hydrogen Bond
Covalent Bond
Covalent Bond
Van der Waals Interaction
Van der Waals Interaction
Ionic Bond
Covalent Bond
A student is performing a chemical reaction. The mass of Reactant 1 is 33 grams. The mass of Reactant 2 is 57 grams. The reaction produces a solid and a gas. The mass of the solid is 26 grams. What is the mass of the gas?(1 point)
Responses
90 grams
90 grams
64 grams
64 grams
116 grams
116 grams
26 grams
57 grams
The number 2 in H2O indicates that there are two atoms of Hydrogen.
To determine the number of Hydrogen atoms in a molecule of water (H2O), we can use the chemical formula. In the formula, the capital letter "H" represents Hydrogen, and the number 2 next to it indicates that there are two atoms of Hydrogen present.
Therefore, the correct answer is "Two atoms of Hydrogen."