What occurs when atoms link together in new ways to create a substance diffrent from the original substance?

A. a physical change

B. a chemical change

C. a nuclear reaction

D. an inversion

A salt sample is placed into some water and nearly all of it dissolve without stirring and heating. the resulting solution is

A solution has a 3.5*10^-3 M of OH^-. Calculate the HO3^ + and pH of this solution, Is it Acidic, Basic or neutral

When scientist proclaimed that the Earth is round, not flat

What does the half-life of a radioisotope represent?

How much carbon dioxide in kilograms is produced upon the complete combustion of 29.4 L of propane (approximate contents of one 5-gal tank) ? Assume that the density of the liquid propane in the tank is 0.621 g / mL.

Why are there so many volcanoes in and around japan

A liquid fuel mixture contains 30.35% hexane (c6h14), 15.85% heptane (c7h16), and the rest octane (c8h18). what maximum mass of carbon dioxide is produced

What is the suns color

A container has a volume of 200 L at 0.94 atm and 25 C. The pressure changes to 1.00 atm and the temperature changes to 0 C. What is the new volume of the container

f litmus paper is dipped in an acidic solution and then in a basic one, what will happen? The paper will turn from blue to red. The paper will turn from red to clear. The paper will turn from blue to clear. The solution will turn from red to blue.