Numbers in scientific notation must be expressed in this form m times 10^n where a. M is 1 and n is greater than or equal to one but less than 10

b. M is greater than or equal to one but less than 10, and n is one

c. n is greater than or equal to one but less than 10

d. M is greater than or equal to one but less than 10

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .