In a mixture, the ingredients are distributed evenly throughout the mixture, while in a mixture, the ingredients are unevenly distributed throughout. a. homozygous; heterozygous b. heterozygous; homozygous c. heterogeneous; homogeneous d. homogeneous; heterogeneous

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

Express the following number in scientific notation. 0.026890 =