If reactants A and B contain a total of 248 kJ of chemical energy, and products C and D contain a total of 841 kJ of chemical energy, is the reaction endothermic or exothermic?

What is the molarity of a solution made with 298g of potassium chloride dissolved in enough water to make 2L of solution?

When listing the levels of organization in organisms from least complex to most complex, which level is just below organs in complexity? cell organism organ system tissue

What are elements in the same row or period called

Which of the following elements will have the highest electronegativity? а с b B CN do

What is the result of mixing the two substances shown here together?

Based on what you read on the Marie Curie and the Science of Radioactivity website, name the scientists who shared the Nobel Prize in Physics in 1903 and describe their contributions that were recognized by the award.

What does aluminum hydroxide and calcium sulfate produce

Balnce the following molecular equation and write net ionic equation NaOH+H2SO4-Na2SO4+H2

Describe in words the reaction represented by the equation and include a description of the composition of each kind of molecule 2h2+02=2h20

Potassium chloride, kcl, sodium sulfate, na2so4, glucose, c6h12o6, carbon dioxide, co2 and ammonium phosphate, (nh4) 3po4, are soluble in water.