0
It depends on the lab, but usually it's either natural gas (mostly methane) or propane.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What methods do scientist use to determine if it is a physical or chemical change?
For a chemical change they analyze the new substances to prove there has been a change in the chemical composition. I am not sure about physical though.
What is a method for showing what a molecule or compound contains?
Chemical analysis shows the contents of compounds and molecules. To identify the compound, you use qualitative analysis. To know exactly how much is present, quantitative analysis should be performed.
What term would you use to classify the two substance?
Chemical- the composition of the substance Physical- appearance of substance
What instrument would a scientist use to to measure out an exact mass of a dry chemical?
A laboratory balance (scale)
Why ethane is an important industrial chemical?
Ethane applications are: - precursor in ethylene preparation (the most important use) - refrigerant - fuel
Chemical composition of dry gas use in gasoline fuel tank?
The composition of most exhaust fuel is Nitrogen, H20, CO2, and a small amount of CO (from incomplete combustion), HCs (from unburnt fuel), NOx (from excessive combustion temperatures), and ozone.
Which property can we use to identify a compound at the laboratory chemistry?
Examples: density, refractive index, melting point, boiling point, spectral properties, X-ray data, color, odor, chemical composition, etc.
Where use base?
1)they are use to form laboratory salt when combined with acid. 2)they are used to detect the chemical reagent. 3)they are use to manufacture many laboratory reagent.
How does composition of organic foods compare to the composition of organic fuel?
I dont know try to use it on google #factss
What is the use of a laboratory Erlenmeyer flask?
- to contain liquids in a laboratory - to realize chemical reactions - to collect the solution from a filtering installation - to realize titrations etc.
Why are chemical fuel cells bad?
They use the wrong kind of energy and they use too much of it. That's why other batteries are way better. One, they hardly use 6% as much as chemical fuel cells. Two, the chemical fuel cells pollute the air too.
What is the use of metacinnabar?
it has the same chemical composition as cinnabar, which is prominent role in the mining process
What instrument would a scientists use to measure out a exact mass of a dry chemical?
A laboratory balance (scale)
What instrument would a scientist use to measure out an exact mass a dry chemical?
A laboratory balance (scale)
Why do you use chemical energy?
Because we can not use energy from light directly. It has to be converted into chemical energy in food molecules which we can then use to fuel cellular activities.
What methods do scientist use to determine if it is a physical or chemical change?
For a chemical change they analyze the new substances to prove there has been a change in the chemical composition. I am not sure about physical though.
What properties would you use to tell salt and pepper apart?
Taste, color, consistency, and chemical composition.
