Physical Universe
15th Edition
ISBN: 9780077510534
Author: KRAUSKOPF
Publisher: Mcgraw-hill Higher Education (us)
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Question
Chapter 12, Problem 5MC
To determine
The correct option from the given set of options.
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a. Petroleum
b. Natural gas
c. Biogas
d. Coal
3. Are substances that provide the desired and specified effects of the
product.
a. Inactive ingredients
b. Synthetic ingredients
c. Active ingredients
d. Soaps
4. Consider the reaction between H2 and I2. If 10 moles of H2 reacts with 8
moles of I2, how many moles of HI will be formed?
a. 12 moles
b. 10 moles
c. 18 moles
d. 16 moles
poiwolle
5. Are substances that can be added to a chemical reaction to increase its
reaction rate.
a. Catalysts
b. Products
c. Reactants
d. Reactions
Choose the correct answer:
1/ In nanotechnology, the adsorption is used for:
a. Serving as nano-pores in membranes for water desalination
b. Decontamination of pollutants
c. Reducing the increase of temperature in the environment
d. Adding oxygen to the environment
2/ The hydroxyl radical OH is formed when:
a. Moisture H2O loses electron
b. Oxygen is coming from air and combines with H2O
c. The light is exposed to H2O molecules which removed hydrogen
D. The light is exposed to H2O which attracted hydrogen
3/ Which statement is not true about nanomaterials and water:
a. Nanomaterials decontaminate water from pollutants
b. Nanomaterials can detect contaminants in water
c. Nanomaterials can desalinize water
d. Nanomaterials absorb contaminants in water
40.
Avogadro’s number of flourine atoms
A.
has a mass of 6.033 x 1023 grams
B.
has a mass of 12.0 g
C.
has the same mass as Avogadro’s number of sulfur atoms
D.
has a mass of 1.0 g
E.
is 1 mol of fluorine atoms
Chapter 12 Solutions
Physical Universe
Ch. 12 - Prob. 1MCCh. 12 - Prob. 2MCCh. 12 - A substance of unknown composition is heated in an...Ch. 12 - Prob. 4MCCh. 12 - Prob. 5MCCh. 12 - Prob. 6MCCh. 12 - Prob. 7MCCh. 12 - Prob. 8MCCh. 12 - Prob. 9MCCh. 12 - Prob. 10MC
Ch. 12 - Prob. 11MCCh. 12 - Prob. 12MCCh. 12 - Prob. 13MCCh. 12 - Prob. 14MCCh. 12 - Prob. 15MCCh. 12 - Prob. 16MCCh. 12 - Prob. 17MCCh. 12 - Prob. 18MCCh. 12 - Prob. 19MCCh. 12 - When an electric current is passed through molten...Ch. 12 - The quantity actually stored in a storage battery...Ch. 12 - Prob. 22MCCh. 12 - Prob. 23MCCh. 12 - Prob. 24MCCh. 12 - Prob. 25MCCh. 12 - The formula mass of gaseous carbon dioxide, CO2,...Ch. 12 - Prob. 27MCCh. 12 - Prob. 28MCCh. 12 - Prob. 29MCCh. 12 - Prob. 30MCCh. 12 - Prob. 31MCCh. 12 - In round numbers the atomic mass of nitrogen is 14...Ch. 12 - Prob. 33MCCh. 12 - Prob. 34MCCh. 12 - Prob. 35MCCh. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - What role does air play in combustion?Ch. 12 - For a given amount of energy to be used for its...Ch. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - How many moles of aluminum are present in 5 mol of...Ch. 12 - How many moles of atomic oxygen are present in 1...Ch. 12 - How many moles of propane, C3H8, can be prepared...Ch. 12 - Prob. 10ECh. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - Find the mass of 10 mol of uranium, U. How many...Ch. 12 - Prob. 14ECh. 12 - Find the mass of 2 mol of iron(III) oxide, Fe2O3.Ch. 12 - Prob. 16ECh. 12 - How many moles of glucose are present in 500 kg of...Ch. 12 - How many moles of lead nitrate are present in 100...Ch. 12 - Prob. 19ECh. 12 - When potassium chlorate, KClO3, is heated, it...Ch. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - How much sulfur is needed to react with 200 g of...Ch. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - Do ions in solution need activation energy to...Ch. 12 - Prob. 31ECh. 12 - Hydrogen peroxide, H2O2, decomposes into water and...Ch. 12 - What is the chief reason that reaction rates...Ch. 12 - Prob. 34ECh. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Give an example of a reaction that is (a)...Ch. 12 - Under ordinary circumstances coal burns slowly,...Ch. 12 - Why is a reaction with a high activation energy...Ch. 12 - To what extent does the time needed for a strong...Ch. 12 - How common are reversible chemical reactions?Ch. 12 - Prob. 42ECh. 12 - Changing the pressure has no effect on the...Ch. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Prob. 52ECh. 12 - When an electric current is passed through a...Ch. 12 - When an electric current is passed through a...Ch. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - What do you think happens when a charging current...Ch. 12 - Prob. 58E
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