Which of these substances is an example of a solution

Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.

How many grams are there in one megagram

Complete the statements based on water’s polarity and ability to form hydrogen bonds. water’s boiling point is abnormally than expected. water has a surface tension, allowing adhesion, cohesion, and capillary action. water has a capacity to retain heat, keeping moderate climates warmer in the winter. water as it freezes, so ice floats when expected to sink.answers are higher high high expands