Balancing this equation

2 C2H2 + O2 CO2 + H2O

A 36.41-g sample of calcium carbonate (CaC O 3) contains 14.58 g of calcium and 4.36 g of carbon. What is the mass of oxygen contained in the sam- ple? What is the percent by mass of each element in this compound?

Carbon dioxide is a molecule made up of a single carbon atom double bonded to two oxygen atoms. The electrons are shared equally between the carbon and the two oxygen atoms. What type of bonding does carbon dioxide have?

Which of the following is NOT true about deep ocean trenches

How much protons and electrons does aluminum have

How many grams are in 6.78 x 10^24 atoms of He?

23 Which term identifies the half-reaction that occurs at the anode of an operating electrochemical cell? (1) oxidation (3) neutralization (2) reduction (4) transmutation

Which of the following is true? A) Gas atoms subjected to electricity emit bright lines of light. B) Gas atoms absorb white and emit a continuous spectrum of light. C) Gas atoms under high pressure emit dark lines against a continuous spectrum.

What common household element can, over time, reduce airflow, insulate components, reduce heat exchange or even cause the system to hang or reboot?

Clouds that form at an elevation of 3 kilometers will most likely be composed of A) raindrops B) ozone C) ice crystals D) sleet

Describe how glacial erosion influenced the topography of Ohio.