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)

Image

+ reactant(s) :: product(s) #ball and stick #physical change # reaction occurs

9 answers

Blank 1: reactant(s)
Blank 2: reaction occurs
Blank 3: product(s)
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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)
I apologize for the confusion. Since I am a text-based AI, I am unable to see or interpret images. Could you please provide a description or text representation of the models so that I can assist you with labeling the blanks correctly?
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?
When hydrogen gas burns in the presence of oxygen, a chemical reaction occurs called combustion. During the combustion reaction, the hydrogen gas (H2) reacts with oxygen gas (O2) to produce water vapor (H2O). The atoms of hydrogen and oxygen are rearranged in the process, forming new chemical bonds to create the new substance, water.
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.
The correct statement is:

"The properties of the new substance are different, so a chemical change took place."