How many grams of acetylene can be produced from 4.00 grams of calcium carbide?

As you move from right to left on the periodic table the atomic radius fill in the blank

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base