Substance Specific Heat (J/g C) Aluminum 0.92
Lead 0.12
Silver 0.23
Steel 0.50
Zinc 0.38

A calorimeter contains 142.85 grams of water at a temperature of 18.24oC. A block of steel at 72.04oC is placed in the water. After a few minutes, the water and steel reach a temperature of 30.79oC. What is the mass of the steel block?

it is a good conductor

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

i believe it is c.) 1575 j.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates