How can a permanent magnet be damaged?

a. cut the magnet in half

b. heat the magnet up

c. strike the magnet with a heavy blow

d. both the second and third choices above

State, in terms of the arrangement of atoms, the difference in hardness between diamond and graphite.

One mole of an unknown compound has 36.04g of carbon and 6.04g of hydrogen. What is the compound's empirical formula?

Calcium reacts with the oxygen in the air, forming calcium oxide. write the balanced chemical equation for this reaction. what is the sum of the coefficients?

Must new substance before when you have a chemical property

Neon atom can exist freely in nature but sodium atom can't why

What is the actual yield if only 50% of a theoretical yield of 200g is formed. A.) 100g B.) 75g C.) 120g D.) 140g

Hydrogen sulfide gas and sulfur dioxide gas react to form solid sulfur and water. If 10.0g of gaseous hydrogen sulphide is mixed with 10.0g of gaseous sulfur dioxide, how many grams of solid sulfur can form?

What do scientists do during data collection? O A. Analyze information to form a summary B. Gather information during an experiment C. Observe and ask scientific questions O D. Design an experiment to test a hypothesis

Organic molecules always: A. contain carbon. B. contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio. C. are produced by living organisms. D. dissolve in water.

Whats the scientific notation of 0.00000923