Is clarity a physical or chemical property?

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?