What are the four peices of matter

Based on reactivity, which of the following elements can replace aluminum (Al) in a compound during a single replacement reaction?

The type of matter and its arrangement in an object

How many grams of water can be cooled from 41 ∘c to 19 ∘c by the evaporation of 62 g of water? (the heat of vaporization of water in this temperature range is 2.4 kj/g. the specific heat of water is 4.18 j/g⋅k.) ?

Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated. this process is called

Does the entropy (△S) increase or decrease in each of the following processes? The wind blows a pile of leaves all over the yard. As you are pumping gas into your car, gas fumes escape into the air. a. decreasing decreasing b.

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? A random amount of light was released. A fixed amount of energy was absorbed. A fixed amount of energy was released.

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 57.1 grams of sodium are added to water?

The distance from dalton, ga to Dallas, tx is 1308 km. What is the distance in miles

Which will melt faster: ice made from tap water, distilled water, or salt water?

You know that 8.9 moles of solute particles are dissolved in that liquid solution. If the molarity of the solution is 25 M, how many liters of solution do you have?