Which of the following is a chemical change?

A: boiling of water

B: melting a cube of ice

C: dissolving 10 grams of salt in water

D: splitting water into hydrogen and oxygen

Newton's second law of motion states that an object with a heavier mass will have more acceleration than an object with a smaller mass if both objects are moving at the same speed.

Which statement best describes how buffers perform their function?

What is the main reason why soil erosion can be a problem for people? O A. People use soil to block the wind. O B. People need soil to build houses. O C. People use soil to stop weathering. O D. People need soil to grow plants.

A 1.0 g sample of food reacts with oxygen in a calorimeter containing containing 500 g of water. The temperature rises 10c what is the energy content of the food? A. 20.92 Calories/g B. 18.25 calories/g C. 5 calories/g D. 50 calories/g

How does the polar jet stream influence the weather on the southern tip of soth america?

Formula for sulfur tetrafluoride

Geologists think that parts of the Appalachian Mountains formed originally from sediments accumulating in shallow swamps. The weight of the sediments caused the area beneath them to sink, allowing more sediments to accumulate.

What volume would 1.5 mol of nitrogen gas occupy at standard temperature and pressure?

State three reason why do you think air is a mixture and water a compound?

Defined the following convection