HELP ME PLEASE I NEED HELP! Metal rings
and gold
Steel wool
pad
Iron and carbon
Which object represents a heterogeneous mixture?
A. Steel wool
B. Aluminum pans
C. Brass key
D. Metal rings

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.