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
Blank 1: reactant(s)
Blank 2: reaction occurs
Blank 3: product(s)
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Hello! How can I assist you today?
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."
To correctly label the blanks, you need to analyze the space-fill models and determine the reactants and products in the reaction. Here's how you can approach it:
1. Look at the space-fill models on the left side of the arrow. These models represent the substances before the reaction takes place. Identify the atoms or molecules present and consider them as possible reactants.
2. Analyze the space-fill model on the right side of the arrow. This model represents the substances after the reaction has occurred. Identify the new atoms or molecules formed and consider them as possible products.
3. Now, let's examine the arrow in the middle of the reaction. The arrow usually indicates a chemical change, where the reactants are transformed into products. Consider what term describes this transformation.
- If the atoms or molecules rearrange, forming different substances, it would be a "chemical change" or a "reaction occurs."
- If the reactants remain the same without any change, it would be a "physical change."
Based on the analysis, you can now label the blanks:
Blank 1: reactant(s)
Blank 2: reaction occurs
Blank 3: product(s)
Drag the correct labels to each box according to the analysis you have conducted.