If an atom of the twelfth element (magnesium) has an atomic mass of 25, how many protons (p), neutrons (n), and electrons (e) does it have?

A compound whose water solution conducts electricity and turnsphenolphthalein pink is (1) HCl (3) NaOH (2) HC2H3O2 (4) CH3OH

The ratio of chromium to iron to carbon varies among the different types of stainless steel. Therefore, stainless steel is classified as (1) a compound (3) a mixture (2) an element (4) a substance

Which of the following is directly responsible for an acquired trait? environment phenotype genotype chromosomes

What is the molarity of a solution that contains 20 grams of salt dissolved in 3.0 L of solution? The molar mass of water is 18g/mol. 0.37 M 6 M 6.7 M 3.5 M

All the water on Earth and in its atmosphere is called the?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true

If an element has 1 valence electrons, how many dots will be in the elements dot diagram?

What is the temperature of a gas at STP?

What is the numerical meaning of centimeter