Which of the following is true of all combustion reactions?
A) They are exothermic.
B) They produce carbon dioxide.
C) both a and b
D) neither a nor b
A
You might also like to view...
Which kind of mass wasting most likely left this deposit, a type of flow or a type of slide? What evidence shown on the map and stereogram supports your answer? (Hint: Note the path taken by the material on its way downslope.)
The following questions are based on Map T-26a, a section of the USGS “Spring Hill, Idaho,” quadrangle (scale 1:24,000; contour interval 20 feet), and Figure 38-9, a stereogram of the same region. The map and stereogram show a large mass wasting deposit at the foot of the Pahsimeroi Mountains in Idaho (44°17'39"N, 113°43'02"W).
In a fractionating tower, the crude oil vapors pass from a pipe still into the column. Tar and lubricating stock are the first components to be pulled off at the bottom. Nearer the top kerosene is pulled off followed by gasoline and finally natural gas at the very top. From this information, which has a higher boiling point, gasoline or kerosine?
A. Their boiling points are the same, but kerosene has the greater density. B. Gasoline has the higher boiling point. C. Fractional distillation components are pulled off based on molecular weight, so it is not possible to know which has the higher boiling point from the information given. D. Kerosene has the higher boiling point.
An autonomous Armenian territory within Azerbaijan is ____________________.
Fill in the blank(s) with the appropriate word(s).
What is a scale model?
What will be an ideal response?