1. A piece of copper weighing 175 grams absorbs 6745 Joules of heat when its temperature increases to 200 Celsius. What is the specific heat of the sample of copper?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?