What is the empirical formula for a compound which contains 32% carbon, 42.66% oxygen, 18.67 nitrogen, 6.67 % hydrogen

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

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.