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The opening greeting of a letter.

The title of a table or business report is typed at the center, in bold, and in _____________.

To delete a space or character to the left of the insertion point, press the _______ key.

14 g of nitrogen will yield ________ g of nitrogen dioxide. N2 + 2 O2 → 2 NO2

Which of the following solutions are possible?

The periodic law states that when elements are arranged in order of ________ their properties repeat themselves at regular intervals.

Which of the following elements has the largest atomic radius?

Calculate the mass of gold (specific heat = 0.130 J/g °C) that requires 468 J to heat the sample from 21.6 °C to 33.2 °C?

The relative ratio of atoms in the binary compound AlxOy is ________.

25 mL of a 0.1 M NaCl solution contains ________ g of NaCl.