Mercury freezes at - 38.9C. What is the coldest temperature, in degrees Fahrenheit, that can be measured by using a mercury thermometer?

Which describes the enthalpy change associated with an endothermic reaction? It is negative because the enthalpy of the products is greater than the enthalpy of the reactants.

Would you expect the wavelength of maximum absorbance for [Cu (NH3) 4]2 + to be greater than or less than the wavelength of maximum absorbance for Cu (H2O) 62+? Explain

Which type of burn involves destruction of the epidermis, dermis, and subcutaneous layers of the skin? a. first degree b. second degree c. zero degree d. third degree

The element in Period 4 and Group 1 of the Periodic Table would be classified as a A. metal B. metalloid C. nonmetal D. noble gas

William finds a piece of pure iron in his garden after few days the iron begins to rush what are two types of substances involved in the rusting process of iron

What is the (H+), if the pH of a solution is 3.20?

In an open system, the vapor pressure is equal to the outside air pressure. T or F?

Could acetic acid be used in the esterification, instead of acetyl chloride? Why or why not?

9. In a sample of gas, what causes pressure? Answer in a completesentence.

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?