1.)Potassium nitrate decomposes when heated, forming potassium nitrite and oxygen gas. a.) Write a balanced chemical equation for this reaction ...
1.)Potassium nitrate decomposes when heated, forming potassium nitrite and oxygen gas. a.) Write a balanced chemical equation for this reaction ...
A.) 50.0mL NH3(g) at -20°C and in 75.0 ml of solution to concentration (molarity) B.) Volume (in liters) of a 0.250 M solution that would release 5.25 L of SO3 (g) at STP C.) Volume (in...
What mass of potassium nitrate is produced when 50.0mL of 0.200 M Al(NO3)3 reacts with 200.0mL of 0.100 M KOH?
Two boats leave a dock together, each traveling in a straight line. One boat travels at 33mph and the other at 24 mph. If the angle between their courses measures 63.0°, how far apart are they after...
A tower is supported by a guy wire 514 feet long. If the wire makes an angle of 68° with respect to the ground and the distance from the point where the wire is attached to and the tower is 125 feet,...
A sailboat leaves port on a bearing of S72°W. After sailing for two hours at 12 knots, the boat turns 90° toward the south. After sailing for three hours at 9 knots on this course, what is the bearing...
From a balloon 734 feet high, the angle of depression to the ranger headquarters is 70°31'. How far is the headquarters from a point on the ground directly below the balloon(to the nearest foot)?...
At an altitude of 3300 feet, the engine on a small plane fails. What angle of depression is needed to reach an airport runway that is 3 miles away by land? (Round your answer to the nearest tenth...
An airplane leaves an airport and flies due west 180 miles and then 160 miles in the direction S 79.17°W. How far is the plane from the airport at this time (to the nearest tenth.)
At an altitude of 3300 feet, the engine on a small plane fails. What angle of depression is needed to reach an airport runway that is 3 miles away by land? (Round your answer to the nearest tenth...
From a balloon 734 feet high, the angle of depression to the ranger headquarters is 70°31'. How far is the headquarters from a point on the ground directly below the balloon(to the nearest foot)?...
From a boat on the lake, the angle of elevation to the top of a cliff is 30°50'. If the base of the cliff is 1038 feet from the boat, how high is the cliff(to the nearest foot)?
From a point on a river, two boats are driven in opposite directions, one at 9 miles per hour and the other at 8 miles per hour. In how many hours will they be 68 miles apart?
The speed of a stream is 5 mph. If a boat travels 46 miles downstream in the same time that it takes to travel 23 miles upstream, what is the speed of the boat in still water?
The speed of a stream is 5 mph. If a boat travels 46 miles downstream in the same time that it takes to travel 23 miles upstream, what is the speed of the boat in still water?
Walt made an extra $10,000 last year from a part-time job. He invested part of the money at 9% and the rest at 6%. He made a total of $780 in interest. How much was invested at 6%?
A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his rate when he was riding a bicycle was 10 miles per hour faster that his rate...
Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 195 miles in the same time that Dana travels 180 miles. If Chuck's rate of travel is 5mph more than Dana's, and they travel the...
Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 18 miles, the distance between the cars was 6 miles more than the distance traveled by...
On a road trip from New York to Los Angeles, Joe stopped in St. Louis which is 924 miles from New York. If St.Louis is 0.33 of the trip to Los Angeles, how far is it from New York to Los Angeles?...