Students in a chemistry class added 127 grams of copper to 32 grams of oxygen. A chemical reaction occurred that produced copper oxide, as shown in the equation below, with no copper or oxygen left over. 2 Cu + ___ O2 → 2 CuO

What type of reaction did the students demonstrate?

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Describe characteristics of a good respitory surface

Identify the area on the image where the force of attraction is the strongest.