A shard of metal releases 226.7 J of heat while cooling 63.3°C. What is the mass of the sample if it has a specific heat of 0.240 J/g°C? Use 1 decimal place.

What are the rules for naming covalent compounds

The Lewis structure of HCl has a double-bond. TRUE FALSE

7 x 10^7 Fahrenheit to Celsius and Kelvin scales

Be sure to answer all parts. A sample of nitrogen gas expands in volume from 1.4 to 5.8 L at constant temperature. Calculate the work done in joules if the gas expands (a) against a vacuum: J (b) against a constant pressure of 0.

How does energy change when you eat food?

The type of nuclear decay an unstable nucleus will undergo depends on its ratio of neutrons to protons. The radioisotope cobalt-65 has a ratio of neutrons to protons of 1.41, which is too high for a nucleus of this size.

1.87 $/gal to dollars per liter, Express your answer using three significant figures.

What can a student do to increase the force of attraction of a magnet on an iron block?

Which elements can react to produce a molecular compound?

Who created the periodic table and in what year?