Effective scientific model

What kind of reaction is decribed by the following chemical equation? 2A1 + Fe2O3 + Al2O3 + 2Fe Select one: •Decomposition •Single Replacement •Synthesis •Double Replacement •Combustion

If the formula for a compound is represented by X3Y2 and the charge on the Y ion is - 3, what is the charge in the X ion? a.+1 b.+2 c.+3 d.+4

The nucleus of a Helium atom has a charge equal to twice the proton's charge. Let FN denote the magnitude of the force the Helium nucleus exerts on one of the electrons in a Helium atom, and let Fe denote the magnitude of the force one electron in

Complete combustion of 7.80 g of a hydrocarbon produced 25.1 g of CO2 and 8.55 g of H2O. What is the empirical formula for the hydrocarbon? Insert subscripts as necessary

Find Out The hazards of corrosion and rancidity

To be considered a source of water pollution, the source must include a chemical.

2,000 kJ worth of heat is absorbs by each of the following objects. Which object will experience the smallest temperature change

How are real gases different from ideal gases?

Which one doesnt belong in the list below? A. a meter B. one liter C. One centimeter D. one kilometer

Which elements did curies discover