What temperature in Celsius is 281 K

When recording a measurement what two things should be considered? Choose two.

Calculate the molar mass of Iron (II) chloride (3 sig figst

Which of the following objects has the greatest kinetic energy? A. O a baseball flying tough the air at 90 miles per hour B. a baseball flying through the air at 45 miles per hour C. a baseball flying through the air at 20 miles per hour D.

In an experiment, a student gently heated a hydrated copper compound to remove the water of hydration. the following data was recorded: 1. mass of the crucible, cover and contents before heating 23.4g. 2. mass of empty crucible and cover. 3.

Which of the following elements has the highest electronegativity? hydrogen carbon chlorine fluorine

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda