Besides being classified by their composition, how else are rocks classified

A sample of a substance that has a density of 0.88 g/ml has a mass of 0.243 g. calculate the volume of the sample. answer in units of ml.

Rank cesium, chlorine, and chromium in order of increasing electron affinity A) Cs < Cr < Cl B) Cl < Cr < Ce C) Ce < Cl < Co D) Ca < Cu < Cl

Which statement correctly describes an endothermic chemical reaction? (1) The products have higher potential energy than the reactants, and the ΔH is negative. (2) The products have higher potential energy than the reactants, andthe ΔH is positive.

How can you determine the number of valence electrons in an atom of a representative element?

What dose the word scientific method means

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?

In a short circuit as the resistance decreases what happens to the current?

Describe the characteristic of chemical structure found at the core of each steroid hormone

A molecule has one carbon-carbon double bond and four monovalent atoms or groups. how many different geometric isomers exist for this molecule?

While waiting for your car to warm up one winter morning, you notice a liquid dripping from your tailpipe. You recently learned in chemistry class that combustion reactions occur in car engines.