hands are very cold and the cup is very hot, heat energy transfers from the cup to her hands because

What are the differences between strong and weak acids?

Explain how you could calculate the acceleration of an object

If the volume of a confined gas is doubled while the temperature remains constant, what change (if any) would be observed in the pressure?

What is a key characteristic of a voltaic cell? An anode and a cathode combine to form an electrode. A nonspontaneous redox reaction converts electrical energy into chemical energy.

If the coal is burned in a power plant that uses 2000 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide? How many grams of calcium sulfite are produced daily by this power plant?

2. Why are stain used when preparing observing cells under the

Based on periodic trends of electronegativity, what statement regarding the halogens is MOST accurate? A) Flourine has the lowest electronegativity. Eliminate B) Iodine has the strongest tendency to attract electrons.

The masses of reactants is always greater than the masses of the products in a chemical reaction, because the products are combined together. TRUE FALSE

Which is a characteristic of a solution1. its particles scatter light2. ita particles are evenly distributed 3. its particles settle out 4. it has large suspended particles

Why might the increase of noise in natural areas be a problem, according to scientists studying wildlife? Support your answer with at least two details from the text.