Test bank for general organic and biological chemistry 6th edition by timberlake

Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ Exam Name _ MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question 1) Water, H O, is an example of a(n) 1) A) wave B) type of energy C) chemical D) electric charge E) element 2) In this list, which substance can be classified as a chemical? A) heat B) cold C) sleep D) salt E) temperature 2) 3) One example of a chemical used in toothpaste is A) chlorine B) calcium carbonate C) sugar D) carbon dioxide E) sulfur 3) 4) Which of the following is NOT a chemical? A) sugar B) water C) salt D) carbon dioxide E) light 4) 5) Sodium fluorophosphate is a chemical used in toothpaste to A) keep the paste from spoiling B) remove plaque C) disinfect the toothbrush D) strengthen tooth enamel E) make the paste white 5) 6) Titanium dioxide is a chemical used in toothpaste to A) make the toothpaste white B) keep the paste from spoiling C) strengthen tooth enamel D) remove plaque E) disinfect the toothbrush 6) Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ 7) When a part of the body is injured, substances called are released A) aspirins B) chlorofluorocarbons C) pain relievers D) nitrogen oxides E) prostaglandins 8) Which of the following is a chemical? A) sound B) light 7) 8) C) heat D) noise E) sugar 9) You notice that there is more traffic between 8:00 and 9:00 AM This would be a(n) A) conclusion/theory B) observation C) experiment D) hypothesis 9) 10) There is more traffic between 8:00 and 9:00 AM because most people start work at 9:00 AM This would be a(n) A) experiment B) observation C) conclusion/theory D) hypothesis 10) 11) In order to enhance your learning in chemistry, you should NOT A) wait until the night before the exam to study B) form a study group C) be an active learner D) study a little every day E) go to professor's office hours 11) 12) Which of the following would NOT be part of a study plan to learn chemistry? A) form a study group B) study a little every day C) work the sample problems D) read the chapter before class E) skip your professor's office hours 12) 13) In the number 12.345, the is in the place A) tens B) ones C) tenths D) hundredths E) thousandths 13) 14) In the number 12.345, the is in the place A) tens B) ones C) tenths D) hundredths E) thousandths 14) Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ 15) In the number 12.345, the is in the place A) tens B) ones C) tenths D) hundredths E) thousandths 15) 16) The product of (-4) × (-5) is A) B) 20 C) -1 D) E) -20 17) For the equation 4x + = 10 , x equals A) B) 12 C) -2 D) E) 16) 17) 18) For the equation 6y -20 = -2 , y equals A) -3 B) -2 C) D) E) 19) For the equation : -10 - (-4) = A) -6 B) C) 14 D) -14 E) 20) 12 is what percentage of 36? A) 33% B) 12% C) 3% D) 330% E) 30% 21) 16 is what percentage of 80? A) 5% B) 20% 18) 19) 20) 21) C) 50% D) 200% E) 2% 22) On the graph, what is the temperature after 40 minutes? A) 57 °C B) 40 °C C) 26 °C Full file at https://TestbankDirect.eu/ 22) D) 44 °C E) 36 °C Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ 23) 23) On the graph, how long does it take to cool to from 80 °C go 45 °C? A) 60 B) 35 C) 75 D) 25 E) 42 24) Written in scientific notation, 540 000 is A) 5.4 × 10 -5 B) 54 × 108 24) C) 5.4 D) 5.4 × 10 E) 0.54 × 106 25) Written in scientific notation, 8300 is A) 8.3 × 10 B) 8.3 × 10 -2 C) 8.3 × 10 D) 8.3 × 10 -3 E) 8.3 × 10 26) Written in scientific notation, 0.000 000 33 is A) 3.3 × 10 -7 B) 3.3 C) 3.3 × 10 D) 3.3 × 10 -8 E) 3.3 × 10 25) 26) 27) Written in scientific notation, 0.000 004 03 is A) 4.03 × 106 27) B) 0.403 × 10-5 C) 4.03 D) 4.03 × 10-7 E) 4.03 × 10-6 SHORT ANSWER Write the word or phrase that best completes each statement or answers the question 28) A substance that always has the same composition and properties is called a(n) 28) 29) Any material used in or produced by a chemical reaction is a(n) 29) 30) An abrasive used in toothpaste is 30) Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ 31) The substances released when tissues are injured are 31) 32) The chemical used to make cans and foil is 32) 33) The first step in the scientific method is to 33) 34) The second step in the scientific method is to 34) 35) In the number 45.678, the digit is in the place 35) 36) 40 students complete the first semester chemistry course If 32 students take the second semester class, % are taking this class 36) 37) Express using scientific notation: 351 000 000 000 37) 38) Express using scientific notation: 0.000 860 38) 39) Express using scientific notation: 207 000 39) 40) Express using scientific notation: 0.000 000 050 40) TRUE/FALSE Write 'T' if the statement is true and 'F' if the statement is false 41) Titanium dioxide in toothpaste is used as a detergent 41) 42) Calcium carbonate is used to sweeten toothpaste 42) 43) Paracelsus was a Greek philosopher 43) 44) The first step in the scientific method is to draw a conclusion 44) 45) Doing experiments to test your hypothesis is part of the scientific method 45) 46) If one experiment is successful, your hypothesis becomes a scientific theory 46) 47) Working with a group of students can help you learn chemistry 47) 48) Keeping a problem notebook will help you well in your chemistry class 48) 49) It is a good idea to wait until the night before an exam to start to study 49) 50) You should always look at the given answer to a problem before you attempt to solve the problem 50) 51) In the number 123.45, the digit is in the hundreds place 51) 52) In the number 123.45, the digit is in the ones place 52) Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file at https://TestbankDirect.eu/ 53) When -7 is added to -5 the answer is 12 53) 54) If a negative number is divided by another negative number, the answer will be a positive number 54) 55) If -2x = 8, x is equal to 55) 56) If 12 students in a class of 36 students got an "A" grade on the exam, 33% of the students earned an "A" 56) 57) 3.5 × 10 is equal to 3500 57) 58) 2.25 × 10-4 is equal to 22500 58) Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file atKey https://TestbankDirect.eu/ Answer Testname: UNTITLED1 1) C 2) D 3) B 4) E 5) D 6) A 7) E 8) E 9) B 10) D 11) A 12) E 13) D 14) A 15) C 16) B 17) D 18) C 19) A 20) A 21) B 22) D 23) E 24) D 25) C 26) A 27) E 28) chemical 29) chemical 30) calcium carbonate 31) prostaglandins 32) aluminum 33) make observations 34) form a hypothesis 35) tenths 36) 80 37) 3.51 × 1011 38) 8.60 × 10-4 39) 5.207 × 10 40) 5.0 × 10 -8 41) FALSE 42) FALSE 43) FALSE 44) FALSE 45) TRUE 46) FALSE 47) TRUE 48) TRUE 49) FALSE Full file at https://TestbankDirect.eu/ Test Bank for General Organic and Biological Chemistry 6th Edition by Timberlake Full file atKey https://TestbankDirect.eu/ Answer Testname: UNTITLED1 50) FALSE 51) FALSE 52) TRUE 53) FALSE 54) TRUE 55) FALSE 56) TRUE 57) TRUE 58) FALSE Full file at https://TestbankDirect.eu/