If you change peanuts into peanut butter is it a chemical or a physical change

What does delayed neutron means?

A 0.1946 g piece of magnesium metal is burned in a constant-volume calorimeter that has a heat capacity for the bomb only of 1349 J/°C. The calorimeter contains 5.00 x 102g of water and the temperature rise is 1.40°C.

This is the an area drained by a river, stream, or other water source. Example: This can also be called a drainage basin.

The density of gold is 19.32 g/cm3. what is the volume of a sample of gold that has a mass of 54.82 g?

Carbon-12 is the most common isotope of carbon, and has an atomic mass of 12 daltons. A mole of carbon in naturally occurring coal, however, weighs slightly more than 12 grams. Why? A) The atomic mass does not include the mass of electrons.

A chemist measures the amount of fluorine gas produced during an experiment. she finds that 76.9 g of fluorine gas is produced. calculate the number of moles of fluorine gas produced.

The job of the human heart is to circulate blood through all of the body's arteries, capillaries, and veins. The job of the human lungs is to supply the small amount of blood in them with oxygen.

A 90 lb person is prescribed a drug in the amount of 50mg/kg body per day to be delivered in 2 doses per day. Each tablet contains 250mg of the medicine. How many tabletes should be given per dose?

What is the stable configuration of the nitride ion (N^-3)

Why corrosion of aluminum is an advantage for the metal and why the corrosion of iron a serious problem