Key words why a rusty nail is chemical

An organic compound is composed of 38.7% C, 9.70% H, 51.6% O. The compound has a molecular formula mass of 62.0g/mol. What is the molecular formula of this organic compound? A) CHO B) C2H6O2 C) C4H6O4 D) C4H12O4

In the late 1800s, experiments using cathode ray tubes led to the discovery of the (1) electron 3. positron (2) neutron 4. proton

How many valence electrons are found in one atom of nitrogen (n) ? 2 5 7 14?

800, + 10H, O, how many moles of Co, are 1. Given the balanced equation 2C, H,. + 130, produced when 14.9 g of O2 are used? a. 0.29 mol b. 3.49 mol c. 12.61 mol d. 119.2 mol

Which of the following substances would best be measured using mole quantities? Question 2 options: people in the world coin money in circulation molecules of water in the ocean hairs on a shaggy dog

You know that 8.9 moles of solute particles are dissolved in that liquid solution. If the molarity of the solution is 25 M, how many liters of solution do you have?

Which of the following will most likely happen if you apply unbalanced forces to an object? It will change position. It will become charged. It will change mass. It will change size.

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance