1. La unión de 2 o más elementos químicos, es la definición de: a. Atomo b. Elemento c. Sustancia d. Compuesto e. Mezcla

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

What are the major types of a chemical compound

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules