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Energy Changes
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Questions (70)
Physical Science A Semester Exam 33 of 3333 of 33 Items Question Use the table below to answer the question. A student creates a
1 answer
asked by
Kopopolo
29 views
Physical Science A Semester Exam
33 of 3333 of 33 Items Question Use the table below to answer the question. A student creates a
1 answer
asked by
Me-Myself+I
59 views
Two bar magnets are held in place in the configuration shown. If the magnets are pulled apart, which statement correctly
1 answer
asked by
Kopopolo
35 views
What does the release or absorption of energy indicate?
Responses chemical change chemical change physical change physical change
1 answer
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JAKE
20 views
Why is there a change in energy during chemical reactions?(1 point)
Responses Energy is released by the formation of chemical
1 answer
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54 views
What is the total amount of energy needed to break the 4 C-H bonds in 1 molecule of the reactant CH4?
1,724 kJ/mol b. 3,036
1 answer
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27 views
You make toast in the morning while you watch snowflakes fall. Describe making toast and how snowflakes are formed in terms of
1 answer
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lol
34 views
Methane reacts with Oxygen to produce carbon dioxide, water, and energy.
What type of reaction is this? No Reaction Endothermic
1 answer
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19 views
For a reaction to occur, energy must be _____ to break chemical bonds.
absorbed converted released
1 answer
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e
51 views
What is the name of the quantity of energy we get when we subtract the energy of the products from the energy of the reactants?
1 answer
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10 views
Look at the reaction above, showing the formation of ammonia (NH3) from hydrogen (H2) and nitrogen (N2) gas. Choose the 2
1 answer
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17 views
Reaction B (attached); The change in enthalpy for the forward reaction is -91kJ/mol. (Energy is a product, flowing from the
1 answer
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35 views
The given chemical reaction is:
[COCl_2(g) \rightleftharpoons CO(g) + Cl_2(g) \quad K = 1.5 \times 10^{10}] Would you predict
1 answer
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The given chemical reaction is:
[COCl_2(g) \rightleftharpoons CO(g) + Cl_2(g) \quad K = 1.5 \times 10^{10}] Are the reactants or
1 answer
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20 views
ΔΗ =- 55
kcal mol Equilibrium favors the (Choose one)
1 answer
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18 views
Consider the following reaction:
CO(g) + 2H2(g) - CH4O (g) Part: 0 / 5 K=2.3×104 Are the reactants or products lower in energy?
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24 views
a chemical reaction that requires an input of energy
1 answer
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8 views
What happens to some metals when the kinetic energy of their particles is decreased?(1 point)
Responses They melt. They melt.
1 answer
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8 views
An electric flashlight can be charged by turning a crank. Identify the types and order of energy changes happening.
a Mechanical
1 answer
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BaCl2 is reacted with Na2SO4 is it endothermic or exothermic reaction
1 answer
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Parent Categories (11)
Chemical Reactions
Chemistry
Energy
Exothermic Reactions
Magnetism
Physical Science
Physics
Reaction
Reactions
Science
Thermodynamics