What is the symbol for the ion with 19 protons and 18 electrons?

What is the most abundant gas in Earth's present day atmosphere? methane oxygen carbon dioxide nitrogen

Identify the effect of increasing acidity on the solubility of the given compounds. drag the appropriate items to their respective bins.

1. Find the percent composition of a compound that contains 1.10 g calcium, 0.888 g sulfur. and 1.76 grams of oxygen in a 3.74 a sample of the compound

What is the correct ionic formula when mg2 + and p3 - react?

Compare two cells. One has a surface area to volume ratio of 3:1 and the other has a ratio of 6:1. Which one will have a better ability to get materials across its membrane?

What is the element Ar classified as in the periodic table?

Two objects, one heavy and one light, travel at one of two speeds. Which will have the most inertia?

Which statements correctly describe water boiling in a pot? Air bubbles from the atmosphere are being absorbed. The water's internal kinetic energy is increasing. The water is gaining internal potential energy. The water's temperature is increasing.

Biofuel is any fuel that is produced from living or once living matter in a short period of time, days, weeks, or even months.

How are revolution and year related