Avogadro's Law

second law of thermodynamics- Whenever energy is transformed, the universe becomes more chaotic. 40. Secretion- molecules are created and transported out of the cell.

• These particles are much smaller than the distance between particles, therefore the volume of a gas is mostly empty space and the volume of the gas molecule themselves is negligible. • There is no force of attraction between gas particles or between the particles and the walls of the container. • Collisions between

The molar heat of combustion of a compound is 1250 kJ/mole. If 0.115 moles of this compound in a bomb calorimeter with 2.50 L of water, what would the temperature increase be? If change in heat is positive it is an _______ reaction If change in heat is negative it is an_______ reaction

Hana Phan Mrs Thomas Honors Chemistry P. 2 9-20-17 Chapter 2 Booknotes 2.1 What is matter? matter - anything that has mass or volume volume - the amount of space an object occupies mass - a measure of how difficult it is to change the object’s state of motion atoms - the basic unit of matter molecules - a neutral group of atoms held together by chemical bonds physical properties - properties that can be observed or measured without changing the composition of matter state - the condition of being a gas, liquid, solid, plasma, or neutron star chemical properties - properties that can be observed only when substances interact with one another Matter is anything that has mass or volume. Volume is the amount of space an object occupies while

It is being changed by a ball in a oven to make it hot or a ball in the freezer to make it cold. Temperature can be measured by

Some factors that influence the speed of a chemical reaction are: (1) surface area of starting reactants; (2) concentration of reactants; (3) temperatures. The particle theory states that a solute dissolved takes place at the surface of the solvent and the larger the surface area of the particle the longer it will take to dissolve. The smaller the area the faster it will

Since the two trials of the experiment are done at a constant pressure and temperature, and about the same amount of moles of gas were produced, it makes sense that the volumes are around the same amount to. This also relates to the accepted value used for this experiment, which was 22.4 L at STP; with Avogadro’s hypothesis in mind, it makes sense that the put hypothetical volume calculated was around this value for one mole of

In reactions, this law says that the mass of the original substance is the same after going through a reaction. This is shown with balanced chemical equations. It is needed so that the mass of the product is equivalent to the mass of the reactants. Mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced equation.

Title: THE BALLOON INFLATION REACTION Introduction: Chemistry is one thing that makes us understand and gives us reasons of why certain reactions gives certain results. In this experiment we will be illustrating the reaction between baking powder and vinegar and see what happens to the balloon that is attached to it. Hypothetically the reaction of the vinegar and baking powder will produce carbon dioxide which will inflate the balloon. If the more vinegar may happen that when more vinegar is added to the baking powder it may produce more carbon dioxide thus the balloons diameter increases.

For example, usually the solid form of a substance is denser that the liquid form but water is an exception. In reality, when water turns into a solid its density decreases by 9 percent. This is very critical for any sea creature for if ice was denser than water then if the body of water they were living in froze they would freeze with it. Thankfully God knew this and he made it so when the water froze the ice would float to the top creating a blanket causing the water underneath not to freeze allowing the fish to live. Another example of density is in a helium balloon.

Bernoulli’s theorem is a special application of the laws of motion and energy. The principle equation describes the pressure measured at any point in a fluid, which can be a gas or a liquid, to the density and the velocity of the specified flow. The theorem can be explained by the means of imagining a particle in a cylindrical pipe. If the pressure on both sides of the particle in the pipe is equal, the particle will be stationary and in equilibrium.

The change in thermal energy of a substance means a change in its temperature. Hot substances have high thermal energy while cold substances have low thermal energy. You can actually see this in water. Let’s say you are making spaghetti. You fill the pot with cool water and set it on the stove, the water is not really

How does the amount of baking soda mixed with vinegar affect the volume of gas produced? The rate of reaction is the increase or decrease time taken at which the products are formed or concentration increase or decrease between a reaction of two or more substances. In the reaction, new bonds are formed whilst others have been broken.

An equation that is used to represent the kinetic energy (KE) of an object: KE = 0.5 • m • v2. The standard unit for kinetic energy is the joule (J). The joule is the standard unit for energy in general. If you were to double the speed

As you increase the temperature, the rate of reaction increases. This occurs because as you heat a substance, the particles move faster and