A calculator answer of 423.6059 must be rounded off to three significant figures. what answer is reported?

How many moles of aspartame are present in 5.00 mg of aspartame?

Which questions would be most useful in a dichotomous key to identify these butterflies? Check all that apply.

Consider the balanced equation for the following reaction: 3CuO (s) + 2NH3 (g) → 3H2O (l) + 3Cu (s) + N2 (g) If 17.3 grams of CuO reacts with 81.4 grams of NH3, how much excess reactant remains?

Food, water, and the termination of a painful electric shock are all:

What is the mass of a sample of a sample of iron (cp=0.44j/g•°C) when it is heated from 60°to 160°C. The heat is transferred is 6600j.

How many atoms are there in one molecule of hexane? (a) six (b) ten (c) twelve (d) twenty

3) A neutral solution has a pH of This means the amount of H + ions is (equal to/less than/greater than) the amount of OH- ions. * 7; greater than 14; equal to 1; less than 7; equal to 0; equal to

Ion Formed of Cl, Te

What does the law of conservation of energy state about energy in a closed system? Energy cannot be created or destroyed. Energy can be created but not destroyed. O Energy can be destroyed but not created. O Energy can be either troyed or created.

A measure of the internal energy that has been absorbed or transferred from one body to another is