Substances that is a mix of carbon and hydrogen, it is often used to describe fossil fuels.
What is a Hydrocarbon
100
Which bond is weaker? A covalent bond or an Ionic bond?
What is an Ionic Bond
200
What change has occurred if a substance transforms from one substance to another with different properties?
What is a Chemical Change
200
What is a Metallic bond?
What is bonds between atoms within metals
200
How many Significant Figures in 506?
What is 3
200
The time rate at which work is done or energy is transfered?
What is Power
200
What is electricity?
What is a flow of electrons
300
Definition of Physical change.
What is What is a characteristic of a substance that doesn't depend on the amount of matter present , such as pressure, temperature or density.
300
What is a covalent bond?
A covalent bond is a chemical bond that consists of shared electrons.
300
How many significant figures in 10050?
What is 4
300
A reaction that produces a release of energy (heat, light or sound) such as a combustion.
What is Exothermic
300
What 2 components are needed to create a generator?
What is a Copper coil and Magnets
400
Production of gas and the formation of precipitation is?
What is a Chemical Change
400
What do covalent bonds bind?
What is electrons
400
How many significant figures in 900.43?
What is 5
400
A unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree.
What is a Calorie
400
Define the octet rule.
What is An atom wanting to have 8 electrons in its outer shell
500
What is one of the main differences between a Chemical and Physical change?
What is multiple answers.
500
How are ionic bonds created?
When opposite charged ions bond.
500
What is Boron's Atomic Mass?
What is 10.811
500
The heat evolved or absorbed during the formation of one mole of a substance from its component elements, or in other words the binding energy of a molecule.