My Flashcards
What is an element?
A element is a substance made up of the same number of protons
What is a catalyst?
A catalyst is a substance that speeds up a chemical reaction
What fuel do you burn to form carbon dioxide and water?
Methane
What is a mixture
A mixture are two or more substances that are mixed together but are not chemically bionded
What is the role of carbohydrase?
The role of carbonhydrase is that it give us energy for the day.
What holds the atoms together in a compound ?
The nucleus holds the atoms together
What is a properties of a solid ?
They have a fixed shape and they cannot be compressed
what is a metal ?
A metal is a typical material which is hard and shiny
What is a definition of fuel ?
A fuel is a material such as coal, gas , and oil
What is a equation for methane ?
Methane + oxygen / carbon-dioxide + water
When fuel burns what does it react with ?
It reacts with “oxygen”
How do you know when a chemical reaction takes place ?
It either changes color or temperature.
How many groups are there in a periodic table ?
There are 8 groups in the periodic table
What is a compound ?
A compound is when two or more elements are combines and are bonded together.
what is the difference between a element and mixture?
A mixture is made from two or more substances that are chemically different and are not chemically joined and a elements chemically react with each other to form chemical bonds .
