Kcl what combination of atoms are involved in this compound? a. 1 potassium atom and 2 chlorine atoms b. 2 potassium atoms and 1 chlorine atom c. 1 potassium atom and 1 chlorine atom d. 2 potassium atoms and 2 chlorine atoms

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

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