Extra
What is another word for water?
H2O.
What is a pure substance?
A pure substance is defined as a material that consists entirely of one type of particle, which can be either an element or a compound. It has a fixed or constant composition and does not contain any impurities or contaminants.
Particles in a _____________ are tightly packed together.
Solid.
What is the solvent in a solution of sugar water?
Water.
What is a homogeneous mixture?
Homogeneous mixture displays certain properties: 1. A homogenous mixture consists of a single phase. It consists only of a solid, liquid, or gas. 2. While the components of the mixture retain their chemical identity, they aren’t visibly separate.
What is everything made up of?
Matter.
What makes something a pure substance?
Pure substances are free of contaminants, meaning they do not contain mixtures of different materials.
What affects the speed that particles move?
Temperature.
___________is the maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature.
solubility.
What does a homogeneous mixture contain?
A homogeneous mixture is a mixture that has a uniform composition throughout. It can be solid, liquid, gas, or plasma mixtures. There is only one phase of matter observed in a homogeneous mixture.
What is a solution?
A mixture of two or more substances that are evenly distributed.
What is an example of a pure substance?
Hydrogen gas, gold metal, sugar (sucrose), baking soda (sodium bicarbonate), ammonia, diamond, copper wire, silicon chip, copper sulfate.
Particles in a _________ take the shape of the container.
Liquid.
__________is the substance being dissolved in a solution.
Solute.
What is a homogeneous mixture?
A homogeneous mixture is a mixture in which the components are uniformly distributed, resulting in a consistent composition throughout the mixture.
All matter is made up of _______?
Particles.
What does pure substance mean in science?
In science, a pure substance is a material with a constant composition. In other words, it is homogeneous no matter when you sample it. A pure substance consists entirely of one type of atom or compound. It participates predictably in a chemical reaction.
As particles are exposed to warmer temperatures, they __________
Slow down.
As the temperature of a liquid solvent increases, the amount of solute that can dissolve in it ___________.
solubility of most solid solutes also increases, allowing more solute to dissolve.
Examples of a homogeneous mixture?
A homogeneous mixture, often referred to as a solution, is a harmonious blend of two or more substances, where the individual components are thoroughly intermingled on a molecular or atomic level.
What does a living organism need to live?
Water, Sunlight and Air.
List at least two chemical properties of pure substances.
Flammability, toxicity, acidity or basicity, reactivity, heat of combustion, thermodynamic stability.
As particles get colder, they _______?
Come closer together.
A solution that contains all the solute it can hold at a given temperature is_________.
Saturated solution
Can a homogeneous mixture be separated?
Homogeneous mixtures can be separated by distillation, filtration, crystallization, or chromatography. However, a homogeneous mixture of two miscible liquids can become non-homogeneous over time.