A. Condensation B. Dehydration C. Hydrolysis D. Photosynthesis . What does the symbol A in a chemical equation mean? A. yield B. a catalyst is needed - In the equation 2Als) placed by Fe? C. a precipitate is produced D. heat is supplied to the reaction 3Fes) + 2AI (NO3)3 (aq), 3Fe (NO:)2lagl> what element has been A. aluminum B. nitrate C. nitrogen D. oxygen .When oxygen is available, sulfur dioxide is produced from the burning of sulfur.Which of e following word equations best represents this reaction? A. sulfur + oxygen > sulfur dioxide B. sulfur dioxide + oxygen → sulfur .In a chemical equation, which of the following will likely to happen? A. New atoms are formed which combine to make the products. B. Some atoms disappear while others multiply to form products. C. The atoms of the reactants always stay together to form the products. D. The atoms of the reactants unbond, rearrange and products. C. sulfur dioxide >sulfur + oxygen D. sulfur → sulfur dioxide + oxygen then rebond to form the . Applying the Law of Conservation of Mass to chemical reactions, what can be said about the total mass of the reacting substances? A. always less than the total mass of the products B. always more than the total mass of the products C. always equal to the total mass of the products D. sometimes more and sometimes less than the total mass of the products . What must be equal in each side of a balanced chemical equation? C. coefficients A. moles B. molecules D. atoms of each element .What are the coefficients that will balance this reaction? HCI (aq) + Mg(OH)2→ MgClz+ H20 А. 1,2, 2,1 В. 2,1,2, 1 C. 2, 2, 1,1 D. 2,1,1,2 1. What will the reaction be when it is balanced? AICI, + AGNO3→AI(NO:)s+ A9CI
A. Condensation B. Dehydration C. Hydrolysis D. Photosynthesis . What does the symbol A in a chemical equation mean? A. yield B. a catalyst is needed - In the equation 2Als) placed by Fe? C. a precipitate is produced D. heat is supplied to the reaction 3Fes) + 2AI (NO3)3 (aq), 3Fe (NO:)2lagl> what element has been A. aluminum B. nitrate C. nitrogen D. oxygen .When oxygen is available, sulfur dioxide is produced from the burning of sulfur.Which of e following word equations best represents this reaction? A. sulfur + oxygen > sulfur dioxide B. sulfur dioxide + oxygen → sulfur .In a chemical equation, which of the following will likely to happen? A. New atoms are formed which combine to make the products. B. Some atoms disappear while others multiply to form products. C. The atoms of the reactants always stay together to form the products. D. The atoms of the reactants unbond, rearrange and products. C. sulfur dioxide >sulfur + oxygen D. sulfur → sulfur dioxide + oxygen then rebond to form the . Applying the Law of Conservation of Mass to chemical reactions, what can be said about the total mass of the reacting substances? A. always less than the total mass of the products B. always more than the total mass of the products C. always equal to the total mass of the products D. sometimes more and sometimes less than the total mass of the products . What must be equal in each side of a balanced chemical equation? C. coefficients A. moles B. molecules D. atoms of each element .What are the coefficients that will balance this reaction? HCI (aq) + Mg(OH)2→ MgClz+ H20 А. 1,2, 2,1 В. 2,1,2, 1 C. 2, 2, 1,1 D. 2,1,1,2 1. What will the reaction be when it is balanced? AICI, + AGNO3→AI(NO:)s+ A9CI
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section: Chapter Questions
Problem 123QRT
Related questions
Question
Answer all the question.
Just choose the letters.
Transcribed Image Text:When digesting a
What do you call this process?
complex carbohydrate, water
32.
is added
and
a simple sugar
is
obtained.
A. Condensation
B. Dehydration
C. Hydrolysis
D. Photosynthesis
33. What does the symbol A in a chemical equation mean?
А. yield
B. a catalyst is needed
34. In the equation 2Als)
replaced by Fe?
C. a precipitate is produced
D. heat is supplied to the reaction
3Fes) + 2AI (NO3)3 laq),
3Fe (NO:)2lag>
what element has been
C. nitrogen
35. When oxygen is available, sulfur dioxide is produced from the burning of sulfur.Which of
A. aluminum
B. nitrate
D. oxygen
the following word equations best represents this reaction?
A. sulfur + oxygen → sulfur dioxide
B. sulfur dioxide + oxygen → sulfur
C. sulfur dioxide >sulfur + oxygen
D. sulfur → sulfur dioxide + oxygen
36. In a chemical equation, which of the following will likely to happen?
A. New atoms are formed which combine to make the products.
B. Some atoms disappear while others multiply to form products.
C. The atoms of the reactants always stay together to form the products.
The atoms of the reactants unbond, rearrange and then
products.
D.
rebond
to
form
the
37. Applying the Law of Conservation of Mass to chemical reactions, what can be said about the total mass of the reacting
substances?
A. always less than the total mass of the products
B. always more than the total mass of the products
C. always equal to the total mass of the products
D. sometimes more and sometimes less than the total mass of the products
38. What must be equal in each side of a balanced chemical equation?
C. coefficients
A. moles
B. molecules
D.
atoms of each element
39. What are the coefficients that will balance this reaction?
HCI (aq) + Mg(OH)2→ MgCl2+ H20
А. 1,2,2,1
В. 2, 1,2, 1
C. 2, 2, 1,1
D. 2,1,1,2
40. What will the reaction be when it is balanced?
AICI, + AGNO3→AI(NOs)s+ AgCI
A. AlCla+ 3AGNO:
B. AICI: + AgNO:
C. 3AICI: + AGNO3>
D. AICI3+ 3AGNO3→ Al(NO3}3+ 3AGCI
Al(NO:)s + AgCI
Al(NO:)s + 3AGCI
3AI(NO:) + AgCI
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