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1- MOLTIPLE CHOICE. Read and answer each statement carefully then write the letter of the best answer on the space before each number. 1. Which of the following changes would you consider to be a chemical change ? A. Baking soda is combined with vinegar B. Candle wax solidifies when it is cooled. 2. All of the following are chemical reactions EXCEPT A. burning of paper B. Freezing of potassium nitrate solution C. potassium fluoride and calcium nitrate are mixed. D. sodium hydroxide is added to nitric acid 3. The correct coefficients for the equation KCIO C. Ice melts D. Paper turned into pieces eiomSn KCI + 0, are C. 2, 3, 2 -> A. 2, 2, 3 B. 3, 2, 2 D. 2, 1, 3

1- MOLTIPLE CHOICE. Read and answer each statement carefully then write the letter of the best answer on the space before each number. 1. Which of the following changes would you consider to be a chemical change ? A. Baking soda is combined with vinegar B. Candle wax solidifies when it is cooled. 2. All of the following are chemical reactions EXCEPT A. burning of paper B. Freezing of potassium nitrate solution C. potassium fluoride and calcium nitrate are mixed. D. sodium hydroxide is added to nitric acid 3. The correct coefficients for the equation KCIO C. Ice melts D. Paper turned into pieces eiomSn KCI + 0, are C. 2, 3, 2 -> A. 2, 2, 3 B. 3, 2, 2 D. 2, 1, 3

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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. MOLTIPLE CHOICE. Read and answer each statement carefully then write the letter of the best answer on the space before each number. 1. Which of the following changes would you consider to be a chemical change? A. Baking soda is combined with vinegar B. Candle wax solidifies when it is cooled. C. Ice melts D. Paper turned into pieces 2. All of the following are chemical reactions EXCEPT A. burning of paper B. Freezing of potassium nitrate solution C. potassium fluoride and calcium nitrate are mixed. D. sodium hydroxide is added to nitric acid 3. The correct coefficients for the equation KCIO→ KCI + 0, are 915 -> C. 2, 3, 2 A. 2, 2, 3 4. Balancing a chemical equation involves A. adjusting the subscripts B. adjusting both subscripts and coefficients C. adjusting the coefficients D. adjusting the masses of reactants and products 5. What is the meaning ofused in a chemical equation? В. 3, 2, 2 D. 2, 1, 3 16 A. gas B. heat is applied C. reacts with D. yields 6. The end or final materials in a chemical reaction is known as C. reactants D. substance A. product 7. What is the meaning of+ used in a chemical equation? B. quotient B. heat is applied C. reacts with D. yields A. gas 8. In the reaction CH +20, → → CO,+2 H,0, oxygen gas is 2 2. A. coefficient B. product C. reactant D. subscript 9. Which equation is correctiy balanced? A. C+0, → 2 COo B. C + 0, →CO, C. C+0, → CO -> 2. D. 2 C+0 2 CO 10. In the equation 2 C H +50 4 CO 2 2(g) + 2 H O the coefficient for carbon 2(g) 2 (1), dioxide is В.5 C. (g) D. 4 A. 2
Transcribed Image Text:. MOLTIPLE CHOICE. Read and answer each statement carefully then write the letter of the best answer on the space before each number. 1. Which of the following changes would you consider to be a chemical change? A. Baking soda is combined with vinegar B. Candle wax solidifies when it is cooled. C. Ice melts D. Paper turned into pieces 2. All of the following are chemical reactions EXCEPT A. burning of paper B. Freezing of potassium nitrate solution C. potassium fluoride and calcium nitrate are mixed. D. sodium hydroxide is added to nitric acid 3. The correct coefficients for the equation KCIO→ KCI + 0, are 915 -> C. 2, 3, 2 A. 2, 2, 3 4. Balancing a chemical equation involves A. adjusting the subscripts B. adjusting both subscripts and coefficients C. adjusting the coefficients D. adjusting the masses of reactants and products 5. What is the meaning ofused in a chemical equation? В. 3, 2, 2 D. 2, 1, 3 16 A. gas B. heat is applied C. reacts with D. yields 6. The end or final materials in a chemical reaction is known as C. reactants D. substance A. product 7. What is the meaning of+ used in a chemical equation? B. quotient B. heat is applied C. reacts with D. yields A. gas 8. In the reaction CH +20, → → CO,+2 H,0, oxygen gas is 2 2. A. coefficient B. product C. reactant D. subscript 9. Which equation is correctiy balanced? A. C+0, → 2 COo B. C + 0, →CO, C. C+0, → CO -> 2. D. 2 C+0 2 CO 10. In the equation 2 C H +50 4 CO 2 2(g) + 2 H O the coefficient for carbon 2(g) 2 (1), dioxide is В.5 C. (g) D. 4 A. 2
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