When was Carbon discovered? (The element from the periodic table)

If a hill or Mountain has a high gradient (slope) what happens to the speed of a river flowing downward and the rate of erosion?

What role does the oxidizing agent play in a redox reaction

In a saturated solution of magnesium phosphate, [mg2+] = 2.4 * 10^-5 m and [po4^3-] = 1.6 * 10^-6. what is the solubility of magnesium phosphate?

How are percent ionization values similar to equilibrium constant values? Explain your reasoning and identify which weak acid would have the smallest equilibrium constant. Weak Acid Percent Ionization HNO2 6.2% HClO2 28.2% HCN 0.007%

The henry's law constants for oxygen and nitrogen in water at 0 oc are 2.54 * 104 bar and 5.45 * 104 bar, respectively. calculate the lowering of frezzing pont of water by dissolved air with 80% n2 and 20% o2 by volume at 1 bar pressure.

How many atoms of chlorine would a molecule of carbon tetrachloride have? a. 0 c. 4 b. 1 d. 7

Suppose you perform an experiment at 21.5 oc and 1.00 atm and generate helium gas in the laboratory. what do you expect the molar volume of the helium to be?

Which best describes Rutherford's model of the atom? fish swimming in an aquarium a sports stadium with a marble at the center a scoop of chocolate chip ice cream a dense, solid ball

Which reaction represents the process of neutralization? Mg (s) + 2HCl (aq) MgCl 2 (aq) + H 2 (g) HCl (aq) + KOH (aq) KCl (aq) + H 2 O (l) C. Pb (NO 3) 2 (aq) + CaCl 2 (aq) Ca (NO 3) 2 (aq) + PbCl 2 (s) D. 2KClO 3 (s) 2KCl (s) + 3O 2 (g)

Which of the following is a correct representation of the isotope of carbon that has 7 neutrons? carbon-7 carbon-13 carbon-6 carbon-12