A compound with a formula mass of 42.08 u is found to be 85.64% carbon and 14.36% hydrogen by mass. Find its molecular formula.

How does the health of polar bears indicate the health of the environment

what will exothermic process do to it's surrounding? what will an endothermic process do to it's surrounding

One end of a molecule has a positive charge and the other end of the same molecule has a negative charge. What is the best term to describe this molecule? A) ion B) dipole C) isotope D) electron

In this lab, you will observe the properties of oil, cornstarch, salt, and sodium bicarbonate. You will use the properties to classify the substances as ionic and covalent. *Restate this goal in the form of an investigative question.

How many grams of LiNO3 must be added to 25.0 g of water to prepare a 5.00% (m/m) solution of LiNO3?

What is the full form of PVC

What happens when the land in the sea warm-up at different rates during the day

Increasing which variable would decrease the pressure of a contained gas?

How many moles of h2o are produced when using 7 moles of h2

A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3 (aq) + NaOH (aq) → NaNO3 (aq) + H2O (1) How many moles of HNO3 are in the sample?