A mercury thermometer is used to take four temperatures of a solution

Consider the isoelectronic ions f - and na+. part a which ion is smaller? f - na + submitmy answersgive up correct part b using the equation zeff=z-s and assuming that core electrons contribute 1.00 and valence electrons contribute 0.

To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She then measured the mass of the sample, find ing that it weighed 38.5 g.

What are the uses of chemistry?

A student has a sample of a white powdery substance. She needs to know if it is an ionic compound or a molecular compound. Describe a method she could use to determine what kind of compound the substance is.

Al (OH) 3 + 3 HCl = AlCl3 + 3 H2O Some brands of antacid tablets have used aluminum hydroxide to neutralize excess acid, as shown above. How many grams of HCl can a tablet with 0.880 g of Al (OH) 3 consume? How much h2O?

Quota sampling is mostly based on participant availability or volunteers.

What will holding the temperature constant while adding more solute to a solution that already has solute crystals at the bottom of the container do?

How much volume (in cm^3) is gained by a person who gains 11.5 lbs of pure fat?

Modern scientists use a version of the metric system called

Which element has a larger ionic radius than calcium? a. sodium b. gallium c. magnesium d. potassium