Calculate the number of iron atoms in 71 grams of iron

Which substances have the lowest melting points: ionic covalent, or metallic

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?