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What other interesting patterns do you notice in the periodic table? What can you predict about the properties of elements in columns 1A, 2A, 6A, and 7A?
And how is column 8A unique?
the equilibrium constant for the reaction of s02 gno2 rarr so3gnog is 3.0. find the amount of no2 that must be added to
Aluminum chlorhydrate is added to antiperspirants to stop people from sweating. If this compound contains neutral H2O molecules and Al3+, OH- and Cl- ions, and the formula of this compound is Alx(OH)5Cl 2H2O, what is the value of x in this formula
What generalization can you make about the rotation of a Fischer projection formula in the plane of the paper? Answer a. 90° rotation results in an enantiomer, 180° rotation results in the identical molecule.
Calculate the molecular weight of the sample.
Gallium arsenide (GaAs) has the zinc blende structure. The gallium atoms are in FCC packing and the arsenic atoms occupy half the tetrahedral sites. Calculate the density of Gallium arsenide (GaAs) using the following data. Covalent Radius Ga 1.26 ..
0.497ml sample of HClO4 has a pH of 0.2251. If 647ml of distilled water was added to the HClO4 solution, what would be the new pH of solution be
A solution of I2 was standardized with ascorbic acid Using a 0..1 g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
(a) Why is the concentration of undissolved solid not explicitl included in the expression for the solubility-product constant? Write the expression for the solubility-product constant for each of the following strong electrolytes: AgI, SrSO4, Fe(O..
you take 3.1789 g of a substance and place it into 100.0 g of benzene. the boiling point of this solution is found to
What two ways could you use to determine which layer is the organic layer and which is aqueous layer
Explain which atom in each of the following pairs has the greater electronegativity. Use merely a periodic table. a) O, S b) K, Ge c) Br, Te
Draw structures of the following 5-carbon molecules. which are isomers of eachother and explain the type of isomerism involved?
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