It has been proposed that North America is moving west at about 2 cm per year. How many kilometers would it move in 5,000 years? (Note: 2 cm is a measurement, so apply significant figure rules in your final answer.)

This element has 2 electrons it its outermost energy level and belongs to the 3rd period

What is one major product of the ETS series of reactions (A) NAD+ (B) FAD (C) ATP (D) pyruvic acid

We know that one mole of Oxygen gas contains two moles of O atoms (remember that O is a diatomic element in nature and is written O2). If we have a sample of O2 that contains 1.0000 x 10-20 mol, we will have (blank) atoms of O in the sample.

Why are environmental factors important to consider when assessing an individual's health? a. Environmental factors are the sole cause of health related issues. b.

How does the volume of a gas compare to the space between the particles of a gas is at normal pressure?

An aspirin tablet contains 81.0 mg of aspirin, which has the molecular formula, c9h8o4.

What size container do you need to hold 0.0459 mol of N2 gas at stp

What happens when two or more atoms react?

If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is produced that contains 55.06% cobalt by mass. Calculate the empirical formula of the sulfide.

Calcium's atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?