When you rub a match against a rough surface, fire results, giving off light and heat. The law of conservation of energy says that energy cannot be created. How can you explain the fire seeming to come from nowhere?

Round the following answer correctly. 5.40m x 3.21m x 1.871m = 32.431914 m^3

A 125G sample of water was heated to 100.0°C and then I borrow platinum 20.0°C is dropped into the beaker the temperature of the platinum in the beaker quickly rose 235.0°C the specific heat of platinum is 0.13 j/g°C. The specific heat of water is 4.

How many electrons would a neutral atom of nitrogen need to gain in order to have a full valence electron shell? A. 3 B. 5 C. 7 D. More information is needed to figure this out.

Which is a possible negative result of using renewable resources? rapid circulation of water cycle increased wind turbine use loss of animal species decreased coal demand

Who made polio vaccine

Define "Homoglycan" and "Heteroglycan" and give an example of each

If you have 200 grams of iodine how many atoms do you have?

Sea salt is formed by natural evaporation of ocean water and contains 98% sodium chloride. The remaining 2% are natural minerals such as iron and sulfur. Consider a 84.7-g sample of sea salt.

Which element in group 15 is the strongest metallic character?

Can neptune sustain life?