Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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1. Convert the following temperature scales with step-by-step solution.
a. 120°C to °F
b. 80°F to °C
c. -22°C to K
d. 373K to °F
e. 250°F to °R
f. 400K to °R
g. 98°R to °C
Which is NOT directly attributable of property of water?
A. The top of a lake freezing
B. The nutrients can dissolve and chemical reactions can occean.
C. A small insect’s ability to walk on water
D. The low boiling point of water
Include correct number of sig figs!
a. 48.2 °C to K
b. 48.2 °C to °F
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- ackboard XCO 用 Remaining Time: 1 hour, 09 minutes, 34 seconds. Question Completion Status: QUESTION 14 Match the symbol with the correct definition. A. a measure of the amount of substance v g B. a measure of distance v mol C. a measure of mass D. a measure of time E. a measure of temperature v K F. a measure of volume QUESTION 15arrow_forward1. When steam condenses, A. A physical change occurs. B. A chemical change occurs. C. Both physical and chemical changes occur. D. H20 molecules increase in number. E. H20 molecules decrease in number.arrow_forward3. Carefully put an egg in a glass half filled with vinegar. Replace the vinegar on the second day. Place the covered glass with the vinegar and egg in a safe place for one week without disturbing it. After one week, pass a light through the egg using a flashlight. N.B. DO NOT BOIL AND EAT THE EGG. A. Results and observation. Equation: HC2H3O2 + CaCO3 calcium acetate + H20 + carbon dioxide B. Calculation: If 9.02 x 1024 particles of vinegar (HC2H3O2)HC2H3O2) is added to 16.5 moles of eggshell (CaCO3) and 6.35 moles g of calcium acetate is formed. What are the (a) theoretical yield, (b) actual yield and (c) percent yieldarrow_forward
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