6th grade Science!! Which two instruments measure wind direction? *

A. thermometer and weather balloon

B. wind vane and anemometer

C. wind sock and wind vane

D. wind sock and barometer

Again hel it’s a quiz :/

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h

The solubility of barium nitrate is 9.02 g/100 g h2o at 20°c. a 15.2 g sample of barium nitrate is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? a. unsaturated b. saturated c. supersaturated

Asolution is produced in which water is the solvent and there are four solutes. which of the solutes can dissolve better if the solution is heated?