In a (n) reaction, the reactants contain more energy than the products; energy is released in this type of reaction.

What effect does lightning have on sandy soil? A) It forms silica. B) It forms quartzite. C) It creates obsidian. D) It creates fulgurites.

Me pueden ayudar a representar este enlace molecular : HCN

Consider a submarine cruising 30 m below the free surface of seawater whose density is 1025 kg/m3. What is the increase in the pressure exerted on the submarine when it dives to a depth of 110 m below the free surface?

Explain why it is important for dying cells to be properly removed

What is the molarity of a 15% solution of sodium chloride (nacl) if the molecular weight of nacl is 58.44 g/mol?

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

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