In nuclear fission, atomic nuclei are

A. split

B. joined together

C. destroyed

D. created

Why do people put on sunscreen to protect from ultraviolet light but don't try to protect themselves from infrared light? Refer to EM spectrum to answer

Which of the following is an interaction is responsible for the force of attraction between the particles in a salt crystal? A) proton-proton B) proton-electron C) neutron-electron D) electron-electron

Fossil fuels are also known as__ This is a crossword btw

How many moles of hydrogen are needed to completely react with 2 moles of nitrogen

Microwave ovens emit microwave energy with a wavelength of 12.8 cm. What is the energy of exactly one photon of this microwave radiation?

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.