Question 2(Multiple Choice Worth 2 points) (06.01 MC)

Choose the chemical equation that is correctly balanced.

2Ca(s) + Cl2(g) → CaCl2(s)

2Mg(s) + O2(g) → 2MgO(s)

Li(s) + Cl2(g) → 2LiCl(s)

2C(s) + O2(g) → CO2(g)

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What type of graph presents information about how often certain or traits occur?