A chemical element is a pure substance that consists entirely of what?

If you have 7 boxes to be moved, the same amount of work is done whether 5 men do the work or 1 person does it. TrueFalse

Tori wants to increase the temperature of 500 grams of water from 20 c to 100 c if the specific heat of water is 4.18 j g c how much heat is needed

Why do real gases not behave exactly like ideal gases? Real gases are always hotter than ideal gases. Real gas particles have significant volume. Real gas particles have perfectly elastic collisions.

What is the oxidation state for a Mn atom? (1) 0 (2) + 7 (3) + 3 (4) + 4

What factors play a role in the rate at which molecules like O₂ and CO₂ can diffuse? a. the distance between the two areas of concentration of the molecule b. the magnitude of the concentration gradient of the molecule c.

How does a salt bridge improve a battery

Hat information is needed to determine the energy of an electron in a many-electron atom?

Write the formulas for the following compounds: (a) copper (l) cyanide, (b) strontium chlorite, (c) perbromic acid, (d) hydroiodic acid, (e) disodium ammonium phosphate, (f) potassium dihydrogen phosphate, (g) iodine heptafluoride, (h)

Name a complex salt used in silver-playing.

10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this question and you will find the actual answer in your teacher's feedback). Do not answer!