What nuclide (X) decays by alpha emission, forming thorium-229? X →Th90229 + α24{“version”:”1.1″,”math”:”X →Th90229 + α24″}

Consider the following bonds: (1) C-Cl(2) C=O(3) C≡N{“version”:”1.1″,”math”:”(1) C-Cl(2) C=O(3) C≡N”} Which bond is the weakest and longest bond?

Which substances will dissolve in hexane, a non-polar solvent?

What is the molarity of a solution prepared by dissolving 12.3 g of NaCl into 200.0 mL of water?

Which statements about calcium metal (Ca) and zinc metal (Zn) are true?

Provide the isotopic symbol for Magnesium.    Note:  the top box is blank 1 and the bottom box is blank 2. _______ _______

The formula for disulfur trioxide gas is:

Which equation represents the dissociation of sodium phosphate, Na3PO4 in water?

A 3.23-g sample of  gas exerts a pressure of 2.33 atm in a 500-mL flask at a temperature of 350. K.  Calculate the molar mass of the gas. Given PV = nRT R = 0.08206 atm · Lmol · K{“version”:”1.1″,”math”:”R = 0.08206 atm · Lmol · K”}

The electron configuration for Titanium (Ti) is: