From the formula MgO how do you know that Mg is the metal?

When hydrogen burns, water vapor is produced. the equation is 2h2 (g) + o2 (g) → 2h2o (g). if 12 l of oxygen are consumed at stp, what volume of water vapor is produced?

What happens when electrons are passed from one atom to a more electronegative atom?

For example: The solid is not completely submerged in the water. Will this technique error increase, decrease, or have no effect on the reported density of the solid?

What is the concentration (M) of average sea water if there is 0.6 mol of salt for 1 Liter of water?

For the following SN2 reaction, draw the major organic product and select the correct (R) or (S) designation around the stereocenter carbon in the organic substrate and organic product. Include wedge/dash bonds and H on a stereocenter.

A cylinder contains oxygen at a pressure of 10.0 atm and a temperature of 300.0 K. The volume of the cylinder is 10,000 mL. What is the mass of oxygen gas?

4 - explicar as mudanças de estados fisicos da materia 6 - definir e exemplificar: -Ligações iônicas ou eletrovalente -Ligações covalentes ou molecular 7-definir substancias puras e suas clasificações 8-definir e exemplificar misturas homogeneas e

What ion forms when an acid is dissolved in a solution?

Suppose you found a material in which 12.5% of the original radioactive atoms were present. if the half-life is 47 years, how old is the material?

How many neutrons does xenon have?