States of Matter
In this state, particles are packed closely together and vibrate about fixed positions.
What is a solid?
This type of substance cannot be decomposed into simpler substances by chemical means.
What is an element?
This type of change changes the appearance and state of water.
What is a physical change?
This is the capacity to do work or produce change.
What is energy?
This temperature scale assigns 0 degrees to the freezing point of water.
What is Celsius?
Unlike a solid, particles in this state are compressible.
What is a gas?
This substance consists of two or more elements combined in fixed proportions.
What is a compound?
Flammability is this type of property.
What is a chemical property?
A process in which energy is transferred away from the system is described by this term.
What is exothermic?
This temperature scale has does not have "degrees".
What is Kelvin?
Salt and diamond are examples of this type of solid, characterized by a repeating arrangement of particles.
What is a crystalline solid?
Salt water is this type of substance, appearing uniform throughout, but the amounts of salt and water can vary from sample to sample.
What is a homogenous mixture?
This scientist stated that the total mass of reactants must equal the total mass of the products.
Who is Antoine Lavoisier?
Energy stored because of an object's position or location is called this.
What is potential energy?
Of lead, copper, water, and aluminum, this substance has the greatest specific heat capacity.
What is water?
This type of substance has a fixed volume but takes the shape of whatever container holds it.
What is a liquid?
An example of this kind of substance contains liquid water, ice, and sand.
What is a heterogeneous mixture?
A reaction begins with 58 g of butane and 208 g of oxygen. If 176 g of carbon dioxide is produced, this is the mass of water that must also be produced.
What is 90 g?
Energy associated with the orientation of molecules is called this.
What is chemical energy?
A 50.0 g sample of water is heated from 20.0 to 35.0 degrees C. This is the amount of heat absorbed.
What is 3.14 x 10^3 J?
Glass, rubber, and plastic belong to this type of solid, whose particles lack long-range order.
What is an amorphous solid?
An example of this type of particle contains two hydrogen atoms chemically bonded to one oxygen atom.
What is a compound?
These are the main three factors we look for when attempting to identify a chemical change.
What are color change, spontaneous energy change, and precipitate formation?
A candy bar contains 225 nutritional Calories. This is approximately the amount of energy contained in the candy bar in joules.
What is 9.41 x 10^5 J?
A 25.0 g sample with a specific heat of 0.903 J/g C absorbs 1.13 x 10^3 J of heat. If its initial temperature is 20.0 C, this is the final temperature.
What is 70.3 C?