In a carbohydrate, the ratio of hydrogen atoms to carbon atoms to oxygen atoms is:

Which of the following increases the Ht concentration in solution? O A. A base O B. Water O C. Salt O D. An acid

PH is a logarithmic scale used to indicate the hydrogen ion concentration, [H+], of a solution: pH=-log[H+] Due to the autoionization of water, in any aqueous solution, the hydrogen ion concentration and the hydroxide ion concentration, [OH-], are

Why do convection currents form

Which of the following is a component of a proton? up quark neutron electron gluon

3.) A vector is a measurement that has both size and direction and may be represented by an arrow. A. True B. False

Using your knowledge of symbols, determine which compound listed must contain both copper and oxygen. a. glucose, C6H12O6 b. chalcopyrite, CuFeS2 c. malachite, Cu2CO3 (OH) 2 d. calcite, CaCO3

Molecules move most slowly in: solids liquids gases compounds

When limestone (solid) is heated, it decomposes into lime (solid) and carbon dioxide gas. This is an extremely useful industrial process of great antiquity, because powdered lime mixed with water is the basis for mortar and concrete - the lime

Identify each enthalpy change by name and classify each change as exothermic or endothermic. 1. 1 mol NaCl (s) à 1 mol NaCl (l) 2. C4H10 O (l) à C4H10O (g) 3. H2O (g) à H2O (l) 4. 1 mol NaCl (s) + 3.

Calculate the number of atoms in a 1.26*103 g sample of silicon.