fill in the blanks in the sentence below
answer choices
reactants, chemicals, atoms, elements
the sentence is below
balance these blank equations making sure you have the same number of each blank on the left and right arrow
balance these chemical equations making sure you have the same number of each element on the left and right arrow.
The sentence should be:
"Balance these chemical equations, making sure you have the same number of each element on the left and right arrow."
To fill in the blanks in the sentence, we need to understand the context and what the sentence is asking for. In this case, the sentence is referring to balancing equations, which typically involves chemical reactions.
The correct answer choices for the blanks are "reactants" and "products."
In a chemical equation, reactants are the substances that undergo a chemical change, while products are the substances that are formed as a result of the reaction. The arrow in the equation represents the direction of the reaction.
To balance a chemical equation, you need to ensure that the number of each type of atom is the same on both sides of the arrow. This requires adjusting the coefficients in front of the reactants and products.
For example, consider the unbalanced equation:
H2 + O2 → H2O
To balance the equation, you would start by counting the number of each type of atom on both sides. In this case, we have 2 hydrogen (H) on the left side and only 1 on the right side, and 2 oxygen (O) on the right side and only 1 on the left side.
To balance the equation, we can change the coefficients to achieve an equal number of each atom. In this case, we can multiply the water molecule (H2O) by 2 to balance the hydrogens:
H2 + O2 → 2H2O
Now, we have 4 hydrogen atoms on both sides. However, we now have 4 oxygen atoms on the right side, so we need to balance the oxygens by adjusting the coefficient in front of the oxygen molecule (O2). In this case, we can multiply O2 by 2:
H2 + 2O2 → 2H2O
Now the equation is balanced, with an equal number of each atom on both sides of the arrow.