10. The wavelength of the electromagnetic radiation is 270 nm. What is the energy of the

radiation?

What is stoichiometry used for

How does a sun form make it a short paragraph

Why is the pressure 101.3kPa significant

Which is the next logical step in balancing the given equation? N2 + O2 → NO2 Place the coefficient 2 in front of oxygen and nitrogen dioxide. Place the coefficient 3 in front of oxygen and nitrogen dioxide. The equation is already balanced.

What is relative atomic mass of an element and why is it a decimal?

Gasoline catches on fire is it flammability?

Enzymes are proteins that speed up chemical reactions in the body how do they work A. they increase the surface area of reactants B. they increase the concentration of reactants C. they decrease the concentration of products D. They act as reactants

Atomic number for bromine

A reaction with ΔH = - 13 kJ/mol and ΔS = - 22 J/K·mol, at 2°C, the reaction is: A) spontaneous B) nonspontaneous C) at equilibrium D) impossible to determine reactivity E) none of the above

A sample of an unknown liquid has a volume of 30.0 mL and a mass of 6 g. What is its density? i need this hella quick