Calculate the mass percent of a solution prepared by dissolving 17.2 g of NaCl in

149 g of water.

How many moles of co2 are produced from the given amount of ch4?

What is alchemy? is it magic? is it ... weird chemistry or science?

What is the standard state of oxygen?

How did most of florida's lakes forms

The activation energy of a chemical reaction can be decreased by the addition of (1) a catalyst (3) electrical energy (2) an indicator (4) thermal energy

A 0.500 g sample of TNT is burned in a bomb calorimeter containing 610 g of water at an initial temperature of 20.0 celcius. The heat capacity of the calorimeter is 420 J/C and the heat of combustion of TNT is 3374 kj/mol.

Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction. Is this a linear relationship? What happens to the initial reaction rate as substrate concentration increases?

Use the following terms to complete the concept map below: South America Pangaea North America Laurasia Gondwana

Which of the following best represents potential energy being converted to kinetic energy?

Biogas majorly contains