RELATIVE POTENTIAL ENERGY QUICK CHECK 1
Which form of energy changes in chemical reactions due to bonds breaking and forming?(1 point)
activation
activation
potential
potential
kinetic
kinetic
thermal
thermal
What does it mean for a reaction to release energy?(1 point)
The relative potential energy of the reaction is positive.
The relative potential energy of the reaction is positive.
The activation energy of the reaction is positive.
The activation energy of the reaction is positive.
The relative potential energy of the reaction is negative.
The relative potential energy of the reaction is negative.
The activation energy of the reaction is negative.
Heat is added to a chemical system. Which energy will increase?(1 point)
the relative potential energy of the system
the relative potential energy of the system
the kinetic energy of the reactant molecules
the kinetic energy of the reactant molecules
the potential energy of the products
the potential energy of the products
the activation energy of the system
Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. If the system contains platinum, then less energy is required for the reaction to occur. Which term best describes the role of platinum in the system? (1 point)
product
product
energy
energy
reactant
reactant
catalyst
catalyst
The two oxygen atoms in a molecule of oxygen gas share their outer electrons. Which type of bond do the oxygen atoms form?(1 point)
ionic
ionic
endothermic
endothermic
covalent
covalent
exothermic
5/5 answers. Trust me.
1. potential
2. The relative potential energy of the reaction is positive.
3. the kinetic energy of the reactant molecules
4. catalyst
5. covalent
1.Potential
2.The Potential Energy is Positive
3.The kinetic energy of the reactant molecules
4.Catalyst
5.Covalent
100%
Okay so similar to Benny, this is what I had for my assessment!
Which form of energy changes in chemical reactions due to bonds breaking and forming?
- potential
What does it mean for a reaction to release energy?
- The relative potential energy of the reaction is positive.
Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. If the system contains platinum, then less energy is required for the reaction to occur. Which term best describes the role of platinum in the system?
- catalyst
The two oxygen atoms in a molecule of oxygen gas share their outer electrons. Which type of bond do the oxygen atoms form?
- covalent
A scientist fills two test tubes with different aqueous solutions and adds different compounds to each solution. After the reactions are complete, the scientist measures the temperature of each solution. The table shows the results of the experiment.
Test Tube 1 Test Tube 2
Initial Temperature 20°C 20°C
Final Temperature 25°C 19°C
Which statement best explains the results?
- The reaction in test tube 1 is exothermic, and the reaction in test tube 2 is not.
i have a different #5 and it was "The reaction in test tube 1 is exothermic, and the reaction in test tube 2 is not."
TYSM GUYS!! :D
“Here to help” was 100% right thanks sm !!! Feb 9, 2022
ty ty anonymous
defecation
To answer the questions, we need to understand the concepts related to energy changes in chemical reactions and types of chemical bonds:
1. Which form of energy changes in chemical reactions due to bonds breaking and forming?
The correct answer is potential. In chemical reactions, bonds are broken and new bonds are formed, leading to a change in potential energy.
2. What does it mean for a reaction to release energy?
When a reaction releases energy, it means that the relative potential energy of the reaction is negative. The reactants have higher potential energy than the products.
3. Heat is added to a chemical system. Which energy will increase?
When heat is added to a chemical system, the kinetic energy of the reactant molecules will increase. Heat causes molecules to move faster, increasing their kinetic energy.
4. Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. If the system contains platinum, then less energy is required for the reaction to occur. Which term best describes the role of platinum in the system?
The correct term to describe the role of platinum in this system is a catalyst. A catalyst increases the rate of a chemical reaction by providing an alternative pathway with a lower activation energy. It does not get consumed in the reaction.
5. The two oxygen atoms in a molecule of oxygen gas share their outer electrons. Which type of bond do the oxygen atoms form?
The correct type of bond that the oxygen atoms form in this case is a covalent bond. In a covalent bond, atoms share electrons to fill their outermost electron shells.
These explanations should help you understand the correct answers to the questions.