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Conservation of Mass
Page 3
Questions (216)
The Law of Conservation of Mass states "Mass cannot be created or destroyed, only transformed."
Considering the Law of
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asked by
trippie
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When magnesium hydroxide reacts with nitric acid, it produces magnesium nitrate and water.
Mg(OH)2+2HNO3→Mg(NO3)2+2H2O In one
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asked by
SRB
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Stephen and Josie are each heating a sample of the same unknown liquid during an experiment. They record their observations in
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Bray
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1 point
Which procedure could be used to demonstrate that matter is conserved during a physical change? Find the mass of a piece
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Match the missing coefficient to the correct number of molecules so that the equation adheres to the conservation of mass.
(X)N2
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e
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What do these two changes have in common?
rust forming on a metal gate snails growing shells (1 point) Responses Both conserve
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cQUESTIONSc
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How does a balanced chemical equation demonstrate the Law of Conservation of Mass?(1 point)
Responses it shows that all compounds
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Match the missing coefficient to the correct number of molecules so that the equation adheres to the conservation of mass.
(X)N2
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Match the missing coefficient to the correct number of molecules so that the equation adheres to the conservation of mass.
(X)N2
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asked anonymously
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How does a balanced chemical equation demonstrate the Law of Conservation of Mass?(1 point) Responses it shows that no atoms
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max
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The chemical equation for the reaction between magnesium (Mg) and hydrochloric acid (HCl) is shown.
Mg + 2HCl → MgCl2 + H2
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2 grams of potassium (K) reacts with 5 grams of Oxygen (O). According to the Law of Conservation of Mass, how many grams of
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A chemistry conducts a reaction of sodium hydroxide (NaOH) and hydrochloric acid (HCL) to form sodium chloride (NaCl) and water
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asked by
Hhhh
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consider the chemical reaction between hydrogen gas and oxygen gas to form water
2H2(g)+O2(g) ➡️ 2H2O(g) Hydrogen(H): 1 g/mol
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Hhhh
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Which equation illustrates the law of conservation of mass?
Responses NaOH + CO2 -> Na2CO3 + H2O NaOH + CO 2 -> Na 2 CO 3 + H 2 O
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In a chemical change, the mass of the reacting substances compared to the mass of the products formed is
Answer options with 5
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Is mass conserved when 50 g of sugar undergoes a physical change? Use complete sentences to support your answer by explaining
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During an investigation a scientist burned 48 g of magnesium strip. After the reaction the total mass of the product formed was
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Examine the equation below, then determine which of the following steps the students could have taken to prove that mass was
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A student claims that the reaction of hydrogen and oxygen to form hydrogen peroxide is evidence supporting the claim that mass
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The scientist used the law of conservation of mass to predict that the product of the reaction would be 15.9 grams of copper
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The law of conservation of mass is a fundamental principle in chemistry that states that mass cannot be created or destroyed
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Mass in a Closed System Quick Check
1. In a closed system, matter is neither created nor destroyed. 2. The mass of water is equal
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The mass of the substances are measured before they are combined and after the reaction takes place. Both measurements show that
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A. What is the total mass of the reactants?
B what is the total mass of the products? C. How does this reaction demonstrate the
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In the picture, which box on the right is the correct products according to the Law of Conservation of Mass?
Responses A AA B BB
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Which equation demonstrates the law of conservation of mass?
A. Mg + S → MgS2 B. C + O2 → C2O C. H2SO4 + Zn → 4ZnSO + H2 D.
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asked by
UNKNOWN
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Is mass conserved in the chemical reaction shown by the equation?
N^2+2 O^2 goes 2 NO^2
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Below is a data table from an experiment in which scoop of baking soda is added to vinegar in a beaker, producing a solution
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A student starts a reaction with two solids and measures the mass to be 100 grams. The reaction ends with one solid and a gas as
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asked by
iknj
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which is likely to occur during a chemical reaction
a. atoms of the original substance are lost b. the original substance
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asked by
shhh
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the following equation does not demonstrate the law of conservation of mass. How can it be changed so that the equation does
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A scientist burns a newspaper completely to ash. How does the newspaper’s initial mass compare to the total mass of the ashes
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asked by
UNKNOWN
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Which of the following shows the conservation of mass during cellular respiration?
a) 3 CO2 + 3 H2O + energy → 3 C6H12O6 + 3 O2
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3 of 53 of 5 Items Question How does the formation of water from hydrogen and oxygen demonstrate the conservation of mass?(1
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The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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A scientist burns a newspaper completely to ash. How does the newspaper’s initial mass compare to the total mass of the ashes
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Conservation in Chemical Reactions Quick Check 3 of 43 of 4 Items Question Use the equation and the table to answer the
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A scientist burns a newspaper completely to ash. How does the newspaper’s initial mass compare to the total mass of the ashes
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Which statement is true regarding a chemical reaction?(1 point)
Responses The total number of atoms changes, so mass is conserved
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The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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Connexus_solver
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A scientist burns a newspaper completely to ash. How does the newspaper's initial mass compare to the total mass of the ashes
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Connexus_solver
9 views
3 of 53 of 5 Items
Question The law of conservation of mass applies during all physical and chemical changes. According to this
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Demon
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Which of the following explains the conservation of mass during cellular respiration?
a) The total number of atoms when carbon
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The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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Which statement best describes the law of conservation of mass?(1 point) Responses Reactants and products cannot escape from a
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2 of 52 of 5 Items
Question A scientist burns a newspaper completely to ash. How does the newspaper’s initial mass compare to
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asked anonymously
66 views
The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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asked anonymously
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The law of conservation of mass applies during all physical and chemical changes. According to this law, during a chemical
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asked anonymously
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Parent Categories (12)
Cellular respiration
Changes
Chemical Equations
Chemical Reactions
Chemistry
Laws and Equations
Laws and Principles
Matter
Physical Changes
Physics
Stoichiometry
Thermodynamics