When 20 calories of heat is added to 2.0 grams of water at 15 c, the temperature of the water increases to?

Is it really possible for humans not to alter the natural world around them?

Suppose you are working with a NaOH stock solution but you need a solution with a lower concentration for your experiment. Calculate the volume of the 1.224 M stock NaOH solution needed to prepare 250.0 mL of 0.1281 M dilute NaOH solution.

A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is a stainless-steel cylinder that measures wide and high.

A sample of water in the vapor phase (no liquid present) in a flask of constant volume exerts a pressure of 438 mm hg at 95 °c. the flask is slowly cooled. a).

Wind erosion occurs at a faster rate in the desert then in place of the pacific layer of vegetation covering the ground why do you think this is the case

There is inverse relation between pressure and diffusion in liquid phase? •True •False

What do you need in order to do a stoichiometric calculation? (Choose multiple) Balanced Chemical Equation Molar masses of compounds involved The type of reaction taking place Oxidation Numbers

The correct mathematical expression for finding the molar solubility (s) of sn (oh) 2 is:

18. which bond is most polar? H--F H--Cl H--Br H--I

What kind of reaction is ca (s) + h3po4 (aq) ca3 (po4) 2 (s) + h2 (g)