Which of these is a mixture? A. Carbon Dioxide B. salt water C. calcium D. potassium

Explain how you can use boyle's law to determine the new volume of gas when its pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 L. Assume the temperature and number of particles are constant. What is the new volume?

The value of acceleration due to gravity (g) on Pluto is about 0.61 meters/second2. How much will an object that weighs 250 newtons on Earth weigh on Pluto? Note that the value of acceleration due to gravity on Earth is 9.8 meters/second2

What are the products of the following combustion reaction? 2C2H2 (g) + 5O2 (g) → C4H2 (g) + H2O2 (g) + 4O2 (g) 4C (s) + 2H2O (g) + 4O2 (g) 4CO2 (g) + 2H2O (g) 4CO2 (g) + H2O (g) + 2O2 (g)

Use complete sentences to explain how you determined the mass of oxygen in the compound produced in the virtual lab, and how the mass of each element can be used to determine the empirical formula of the compound.

The standard metric unit of mass is the

How many particles are in 3.55 moles of Aluminum Sulfate

Major geological events that occur when plates shift suddenly and released stored energy: A. Volcanic eruptions B. Earthquakes C. Antarctic plate D. Spreading ridges

How does a salt bridge improve a battery

Hat information is needed to determine the energy of an electron in a many-electron atom?

Write the formulas for the following compounds: (a) copper (l) cyanide, (b) strontium chlorite, (c) perbromic acid, (d) hydroiodic acid, (e) disodium ammonium phosphate, (f) potassium dihydrogen phosphate, (g) iodine heptafluoride, (h)