Which part anchors plants in the ground?

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.