What is a chemical entity that forms a complex ion around a central atom?

List the symblos for the nine matalloids on the periodic table?

Eric needs a metal that he can bend and shape easily but that will not conduct electricity well. He will need to melt the metal, but his melting equipment can only reach 750°C.

When ethanol, C2H5OH (a component in some gasoline mixtures) is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO2 molecules and three H2O molecules.

What is the salt that is produced when calcium hydroxide (Ca (OH) 2) reacts with sulfuric acid (H2SO4) ?

The density of ethanol was determined experimentally at 25°C in a series of trials to be 0.608 g/mL, 0.705 g/mL, and 0.689 g/mL. The accepted density of ethanol is reported to be 0.789 g/mL. calculate % error for this experiment.

If a scientist creates a new rock-like substance in a laboratory, why wouldn't this type of material be classified as a true mineral?

Select the correct responses to the questions from the drop-down menus. Which wind blows cool air inland during the day? Which wind blows cool air toward the sea at night? Which winds blow steadily from specific directions and over long distances?

Consider the balanced equation for the following reaction: 3Ca (ClO3) 2 (aq) + 2Li3PO4 (aq) → Ca3 (PO4) 2 (s) + 6LiClO3 (aq) Determine the theoretical yield of LiClO3 (aq) in grams if the percent yield of LiClO3 (aq) is 81.0% and 9.

What is the total number of valence electrons in a sulfide ion in the ground state? (1) 8 (3) 16 (2) 2 (4) 18

Write the name and formula of the compound made of magnesium and fluorine