Three hundred grams of aluminum are heated from - 50 ◦c to 300 ◦c. if the specific heat of aluminum is 0.88 j / (g ◦c), what is the change in entropy of the aluminum?

Which reaction below represents a balanced, synthesis chemical reaction? A) N2 + 3H2 - > 2NH3 B) Al + Br2 - > AlBr3 C) 2HBr - > H2 + Br2 D) 2H2O - > H2 + O2

Homogeneous mixtures have components A. That are usually large enough to be seen with the naked eye B. That are not distributed evenly throughout the mixture C.

Which option describes ionic solutes? lonic solutes consist of molecules that share electrons, and these solutes can be dissolved through dissociation, Tonic solutes consist of oppositely charged ions that are attracted to each other, and these

Room has a dimension of 10ft x 20 ft x 8 ft. What is the volume of the room in cubic yards if 1 yard = 3ft

Which two of the given elements have the most similar chemical properties na, Ar, As and Rb

How to find the better buy of two of the same item, but they have different units of measurements and different costs.?

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitrogen C. Excess salt D. Acidic compounds

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?

In a chemical equation the products appear on which side of the equation? A. Left B. Top C. Right D. Bottom

What does the shape of a protein molecule resemble?