Homework Answers
Chemical energy is the form of potential energy in which energy is stored in a chemical bond.
Hence the given statement is True.
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Question 9 Changes in potential energy occur in chemical reactions. True False
Many chemical reactions release energy, while others require energy to happen. These energy changes that occur...
Many chemical reactions release energy, while others require energy to happen. These energy changes that occur during chemical reactions are due to changes in bonding between the reactant molecules and product molecules. Breaking bonds between atoms always requires energy, while creating bonds between atoms always releases energy. Analyze each of the two chemical reactions below by calculating the total amount of energy needed to break the bonds in the reactants, the total amount of energy released upon bond formation in...
Sample Question Physical and chemical changes or reactions that occur within the body are collectively known...
Sample Question Physical and chemical changes or reactions that occur within the body are collectively known as:
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur...
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur quickly. 2. true The reverse of a spontaneous reaction is nonspontaneous. 3. false All spontaneous processes release heat. 4. true The boiling of water at 100°C and 1 atm is spontaneous. 5. false If a process increases the freedom of motion of the particles of a system, the entropy of the system decreases. 6. false The energy of the universe is constant; the entropy...
ENERGY FROM CHEMICAL REACTIONS (page 8) Many chemical reactions release energy, while others require energy to...
ENERGY FROM CHEMICAL REACTIONS (page 8) Many chemical reactions release energy, while others require energy to happen. These energy changes that occur during chemical reactions are due to changes in bonding between the reactant molecules and product molecules. Breaking bonds between atoms always requires energy, while creating bonds between atoms always releases energy. Analyze each of the two chemical reactions below by calculating the total amount of energy needed to break the bonds in the reactants, the total amount of...
True False Artswer Bank Catalysts lower activation energy Catalysts speed up chemical reactions, Catalysts are consumed...
True False Artswer Bank Catalysts lower activation energy Catalysts speed up chemical reactions, Catalysts are consumed by the overall reaction.
QUESTION 9 During fixation (carboxylation), carbon dioxide combines with RuBP. True False QUESTION 10 Electrons that...
QUESTION 9 During fixation (carboxylation), carbon dioxide combines with RuBP. True False QUESTION 10 Electrons that leave PSI flow through an electron transport chain and then into PSII True False QUESTION 11 During the Calvin Cycle, 3PGA is phosphorylated, resulting in the formation of BPG. True False - CULTILOCONCIL - FOOUJOU QUESTION 12 H+ are actively moved from the thylakoid lumen to the stroma True False QUESTION 13 Which of the following does NOT occur during the light dependent reactions?...
Question 35 (1 point) The relationship between the activation energy of the forward and reverse reactions...
Question 35 (1 point) The relationship between the activation energy of the forward and reverse reactions is related by the energy difference between the reactants and products. If the reactants are higher in energy than the products, the activation energy for the forward reaction will be smaller than the activation energy for the reverse reaction and vice versa True False Question 36 (1 point) A catalyst is a substance that is not used up during a reaction. It also does...
True or false Chemical energy is stored in the bonds of molecules. Heat energy is a...
True or false Chemical energy is stored in the bonds of molecules. Heat energy is a very useful form of energy. Biosynthesis part of metabolism uses ATP for energy. Electron transport chains are located in the membrane of mitochondria and chloroplasts. Cells produce only what they require no more or no less. Cellular respiration captures about 40% of the energy in glucose for ATP production. The two major energy producing pathways are aerobic respiration and ermentation. What specific pathways occur...
Determine whether each of the following statements about the thermodynamic functions are True or False as...
Determine whether each of the following statements about the thermodynamic functions are True or False as they apply to chemical reactions. True False Spontaneity is increased by positive entropy changes. True False All spontaneous chemical reactions have negative heats of reaction. True False Spontaneity is increased by negative enthalpy changes. True False Entropy and enthalpy are multiplied in the Gibbs free energy. True False The heat of reaction at constant pressure is always equal to the work done by the reaction.
Determine if the statement given is true or false. If it is false, change the underlined...
Determine if the statement given is true or false. If it is false, change the underlined word(s) so that the statement reads true. ___ Within a closed system, the amount of energy is variable over time. ___ A fire creates energy. ___ The second law of thermodynamics is concerned with entropy. ___ Photosynthesis and similar reactions decrease entropy. ___ Eventually, all molecules in the universe will become randomly dispersed. ___ Reactions that release energy are endergonic. ___ Enzymes increase the...
Sample Question Physical and chemical changes or reactions that occur within the body are collectively known as:
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur quickly. 2. true The reverse of a spontaneous reaction is nonspontaneous. 3. false All spontaneous processes release heat. 4. true The boiling of water at 100°C and 1 atm is spontaneous. 5. false If a process increases the freedom of motion of the particles of a system, the entropy of the system decreases. 6. false The energy of the universe is constant; the entropy...
True False Artswer Bank Catalysts lower activation energy Catalysts speed up chemical reactions, Catalysts are consumed by the overall reaction.
QUESTION 9 During fixation (carboxylation), carbon dioxide combines with RuBP. True False QUESTION 10 Electrons that leave PSI flow through an electron transport chain and then into PSII True False QUESTION 11 During the Calvin Cycle, 3PGA is phosphorylated, resulting in the formation of BPG. True False - CULTILOCONCIL - FOOUJOU QUESTION 12 H+ are actively moved from the thylakoid lumen to the stroma True False QUESTION 13 Which of the following does NOT occur during the light dependent reactions?...
Question 35 (1 point) The relationship between the activation energy of the forward and reverse reactions is related by the energy difference between the reactants and products. If the reactants are higher in energy than the products, the activation energy for the forward reaction will be smaller than the activation energy for the reverse reaction and vice versa True False Question 36 (1 point) A catalyst is a substance that is not used up during a reaction. It also does...
True or false Chemical energy is stored in the bonds of molecules. Heat energy is a very useful form of energy. Biosynthesis part of metabolism uses ATP for energy. Electron transport chains are located in the membrane of mitochondria and chloroplasts. Cells produce only what they require no more or no less. Cellular respiration captures about 40% of the energy in glucose for ATP production. The two major energy producing pathways are aerobic respiration and ermentation. What specific pathways occur...
Determine if the statement given is true or false. If it is false, change the underlined word(s) so that the statement reads true. ___ Within a closed system, the amount of energy is variable over time. ___ A fire creates energy. ___ The second law of thermodynamics is concerned with entropy. ___ Photosynthesis and similar reactions decrease entropy. ___ Eventually, all molecules in the universe will become randomly dispersed. ___ Reactions that release energy are endergonic. ___ Enzymes increase the...
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