You perform a combustion analysis on a 255mg sample of a substance that contains only C, H, and O and you find that 561 mg of Co2 is produced along with 306 mg of h20. What is the empirical formula

When trying to identify an unknown element, a scientist determines what other elements the unknown element reacts with chemically. Which property of the unknown element determines the other elements it reacts with?

The mass number minus the atomic number

A chemical reaction is at equilibrium. what will be the effect if more of the product is added? question 10 options: the reaction will shift to the right (toward the products). the reaction will shift to the left (toward the reactants).

How do I determine the flow rate of a liquid?

What is the net ionic equation resulting from a reaction of aqueous solutions of nitric acid and sodium hydroxide?

1. A liquid is matter because it a) is hard, b) has its own shape, c) has mass and takes up space. d) living things could not survive without it.

Which of the following molecules is amphipathic? A) CH3CH2OH B) CH3 (CH2) 10CO2H C) CH3 (CH2) 10CH3 D) CH3CO2H

Considering the following precipitation reaction: Pb (NO3) 2 (aq) + 2KI (aq) → PbI2 (s) + 2KNO3 (aq) Which ion would NOT be present in the complete ionic equation?

What does the symbol C p stand for?

Which of the following is not true of science? 1. Science offers proof of a claim 2. Science is a way of knowing 3. Science is a process 4. Science provides support or fails to provide support to claim