A sample of iron absorbs 67.5 j of heat upon which the temperature of the sample increases from 21.5 °c to 28.5 °c. if the specific heat of iron is 0.450 j/g-k, what is the mass (in grams) of the sample?

How many grams are there in 1x 1024 molecules of bcl3

Which of the followings represents a negatively charged ion

What is adaptation, and what are some examples of it?

Write a one page letter to your lil cousin explaining how small an atom is

Sodium an alkali metal and chlorine a halogen are both in period 3 of the periodic table which element has a higher ionization energy

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide

Which stament best describes a solution

Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.