If you are trying to find the number of moles of gas present and you record a pressure of 123.3 kPa which value of R would you use?

The relative strengths of covalent bonds and van der Waals interactions remain the same when tested in a vacuum or in water.

Precision can be defined as the exact center of a data set. reproducibility of a measured value. correlation between two variables that are measured in a data set. agreement between a measured value and an accepted value.

Which part of an atom has a negative charge? Question 1 options: neutron proton nucleus electron

25.4 g of salt was dissolved in distilled water to make 425 mL of solution. What is the percent m/v concentration?

Calculate the ph for a 0.3 m solution of (a) sodium leucinate

Predict whether litmus paper will turn red or blue when dipped in: a. washing powder (containing sodium carbonate) b. orange juice (containing citric acid) c. lemonade (containing H2CO₃) d. cleaner (containg NH₃)

Contrast the structures of ionic compounds and metals.

Which of the following is made of matter? a. the sun b. light c. heat d. energy

What basic equation is used to calculate the ph of a solution

Compare the advantages and disanvantage of fossil fuel use