A substance is homogenous but does not have a ficed composition. True / false

Carlos uses a machine to decrease his force Which of the following statements is true? His total amount of work has decreased. His machine must increase the distance the object moves. His machine must decrease the distance the object moves.

The strongest intermolecular interactions between pentane (c5h12) molecules arise from

What process would best separate a solution of liquid water and liquid rubbing alcohol Centrifugation Chromatography Distillation Filtration I think it's distillation but I'm not sure

Which of the following is an inference? A burning candle is extinguished when it is covered with a jar. The candle burns longer than expected in a jar that has a plant in it. A plant lives longer than expected in a jar that has a burning candle.

5. The partition coefficient of Compound A is 7.5 in dichloromethane (a. k. a. methylene chloride) with respect to water. a.

How was helium first discovered?

When is alpha particle emission most likely to occur? A. When the nucleus has more than 83 protons. B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu. D.

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3