Drop target 1: Reactants
Drop target 2: Reaction occurs
Drop target 3: Products
Consider the reaction represented by the space-fill models shown. Drag the correct label to each box.
Blank 1 represents the substance(s) on the left.
Blank 2 represents the arrow in the middle.
Blank 3 represents the substance(s) on the right.
(2 points)
Drop target 1
Drop target 2
Drop target 3
( reaction occurs, ball and stick, products, physical change, reactants )
p
3 answers
When hydrogen gas burns in the presence of oxygen, atoms are rearranged and a new substance is formed. Which of these statements BEST describes what happens?(1 point)
Responses
The properties of the new substance are different, so a physical change took place.
The properties of the new substance are different, so a physical change took place.
The properties of the new substance are the same, so a physical change took place.
The properties of the new substance are the same, so a physical change took place.
The properties of the new substance are different, so a chemical change took place.
The properties of the new substance are different, so a chemical change took place.
The properties of the new substance are the same, so a chemical change took place.
Responses
The properties of the new substance are different, so a physical change took place.
The properties of the new substance are different, so a physical change took place.
The properties of the new substance are the same, so a physical change took place.
The properties of the new substance are the same, so a physical change took place.
The properties of the new substance are different, so a chemical change took place.
The properties of the new substance are different, so a chemical change took place.
The properties of the new substance are the same, so a chemical change took place.
The correct statement is: "The properties of the new substance are different, so a chemical change took place."
5 answers