What is the molecular formula for Heptachlorine hexoxide?

A. Cl7H8

B. Cl6O7

C. Cl6H8

D. Cl7O6

Which of the following is true regarding phase changes? A. Melting is the reverse of deposition. B. Sublimation is the same as boiling. C. Condensation is the reverse of evaporation. D. Freezing is the same as sublimation.

What molecules can produce more energy per gram than sugars and are used for storing energy in animals? A. carbohydrates B. proteins C. lipids D. hydrocarbons

A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.30 nm. It then gives off a photon having a wavelength of 1820 nm. What is the final state of the hydrogen atom?

If the temperature is 80° outside does the air transfer more or less thermal energy to a thermometer then if it is 60°

What types of elements usually form covalent bonds?

The double bond between carbon and oxygen is similar to an alkene C-C, except that C o is: a) shorter and weaker. b) shorter and stronger c) longer and weaker. d) longer and stronger.

Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0576 M 17.1 s after the reaction starts and is 0.0249 M 97.8 s after the reaction starts.

What is the heat of solution? A) the amount of heat released when a vapor changes into a liquid B) the amount of heat absorbed or released when a solid dissolves C) the amount of heat required to change a solid into a liquid D) the amount of heat

Write a balanced equation for each of these chemical reactions potassium phosphate + calcium nitrate

What is the mass number of an ion with 106 electrons, 158 neutrons, and a + 1 charge?