Snails growing shells is that a chemical change

During a 4 hour trip, a boat sailed 70 km in 2 h. Then the boat did not move for 1 hour and traveled 26 km in the last hour. What was the boat's average speed?

What is the molarity of a solution that is made by dissolving 3.68 g of sucrose (c12h22o11) in sufficient water to form 275.0 ml of solution?

Name the parts of of the Judicial Branch of government?

500 mL of He at 300 K is heated to 450 K. Find V2

What is the mass in grams of 250 ml of PH3 at STP?

What are two fungal skin infections that humans can contract? pneumonia and ergot disease ergot disease and athlete's foot athlete's foot and ringworm ringworm and pneumonia

A critical biotic factor in Yellowstone National Park is A) geographic isolation B) high elevation C) high temperature in the summer D) population of wolves E) proximity to water

If energy can neither be created nor destroyed in a chemical reaction, what can happen to the energy

Effect of ph on conformation of aplha helix

How can we tell when something is polar or non-polar in an Inter-molecular Force?