What are three substances that are solid at room temperature

During the Big Bang, what were the two main chemical elements created? Whoever answers first gets the Brainliest for being the Brainliest.

Phosphorus pentachloride reacts with water to produce phosphoric acid and hydrochloric acid. what is the sum of the lowest whole number coefficients for this equation when it is balanced

H2 and Fe represent

Consider the rate law below. What effect does doubling the concentration of each reactant have on the rate? The rate increases to two times the original rate. The rate increases to four times the original rate.

A log's mass is 5 kg. After burning, the mass of the ash is 1 kg. Explain what may have happened to the other 4 kg of mass.

The envelope of air that surrounds the earth is called

What is the chemical formula for potassium permanganate?

Is it always possible to identify something as an element compound pure substance or mixture

Why would someone weigh less on Pluto?

HNO3 + H2O > H3O (aq) + NO3 - (aq)