What two types of atoms make a Covalent bond

Must a new substances be formed when you observe a chemical property? Explain.

The atomic number of an element X is 30 and the mass number is 65. Find the number of protons, neutrons, and electrons in an atom of element X.

The resistance and the magnitude of the current depend on the path that the current takes. The drawing shows three situations in which the current takes different paths through a piece of material.

Objects that exhibit projectile motion follow what kind of path

Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to truthfully report the mass). (a) What is the force constant of the spring in such a scale if it the spring stretches 8.00 cm for a 10.0 kg load

What is the difference between analog and digital sound transmission?

A 20 kilogram ball rolls down a 10 meter ramp at the rate of 15 meters per second.

Why does the falling speed of a ball keeps increasing every second when it is dropped from a building?

In your own words describe an interaction between the chromosphere and the hydrosphere

Ming drives across Arizona in the middle of July. She drives for two hours in the hot, desert sun before stopping for some snacks. Which statement describes the condition of the tires on Ming's car when she stops? A.