A blank cell has half the chromosomes of a blank cell

Which statement best describes reproduction among Bactria under ideal conditions

Which of the following correctly compares periodic properties of two elements and provides an accurate explanation for that difference? The first ionization energy of Al is greater than that of B because Al has a larger nuclear charge than B does.

How many types of atoms can you expect to find in a sample of any element?

A diamond contains 5. 1021 atoms of carbon. What amount (moles) of carbon are in this diamond?

What type of compound is cu2so4

Which of these instruments sends its measurements directly to a computer? A. graduated cylinder B. stopwatch C. temperature probe D. pH paper

Write the balanced molecular and net ionic equation for the reaction that occurs when the contents of the two beakers are added together. (use the lowest possible coefficients. include states-of-matter under satp conditions in your answer.)

Muscle physiologists study the accumulation of lactic acid [CH3CH (OH) COOH] during exercise. Food chemists study its occurrence in sour milk, beer, wine, and fruit.

Suppose that you have 23 g of silver. Also assume that this sample of silver is initially at 18 oC. What is the final temperature of this sample of silver after it absorbs 2.05 kJ of heat? csilver = 0.

The number of neutrons in the nucleus of an atom can be determined by (1) adding the atomic number to the mass number (2) subtracting the atomic number from the mass number (3) adding the mass number to the atomic mass (4) subtracting the mass