Which of the following is closest to the meaning of the term ancestor?

A. a relative from long ago

B. an organism that has evolved

C. a trait that has changed over time

D. an organism that is adapted to its environment

What is the difference between ionic and covalent bonds?

Which of the following statements is not an accurate description of a factor that contributes to the ordering of the spectrochemical series for ligands and metals? (Select one answer. There is only one correct answer) a.

Why don't noble gases bond?

Solution 1 consists of 80% benzene and 20% toluene. Solution 2 consists of 30% benzene and 70% toluene.

What is the study of the relashionship of plants and animals with there physical environment

What are 3 properties of carbon?

A (1. pathogen 2. Germ 3. Bacterium) is an agent that causes disease. All (1. bacteria 2. fungi 3. Viruses) are pathogens.

Calculate the solubility (in g/l) of calcium fluoride in water at 25°c if the ksp for caf2 is 1.5 * 10-10.

Distinguish between the terms accuracy and precision. In general, explain why a precise measurement does not always guarantee an accurate result.

Does it require more energy to melt an ionic compound or dissolve it in water? It requires much more energy to melt it. It takes about the same amount of energy. It requires much more energy to dissolve it. Ionic compounds are insoluble in water.