Is hot coffee an element a compound a heterogeneous mixture or a homogeneous mixture?

How many atoms are there in NaCI

H2 how many elements?

As the ph approaches 0, what happens to the concentration of h3o + ions?

Which statement is true? A reaction in which the entropy of the system increases can be spontaneous only if it is exothermic. A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic.

Which metal will produce h2 gas when added to a solution containing a strong acid?

Convert 4.992*1010 g to each of the following units. B. Mg c. mg D. metric tons

The ideal gas law shows us how a gas will behave under many conditions. The formula is: P V = n R T Where P = pressure, V = volume, n = amount of the substance, R = ideal gas constant, and T = temperature.

The Suns ultraviolent Rays can cause skin damage including sunburn and even skin

Peas contain 250 kJ per 100 g. You would use the equivalent of 600 g of peas if you slept for.

A sample of gas in a balloon has an initial temperature of 21 ∘C and a volume of 1310 L. If the temperature changes to 70 ∘C, and there is no change of pressure or amount of gas, what is the new volume, V2, of the gas?