An unknown substance with a mass of 25 grams releases 550 joules of energy when undergoing a temperature increase of 10 degrees celsius. what is the specific heat of that substance? show your work in the space below.

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false