Answer:
Try everything
1. How many moles of nitrogen gas are in 1.54x10^26 molecules? How many atoms?
2. How many molecules of water are in 3.45 moles of water?
3. How many atoms of C are in 2.00 moles of Cv6Hv12Ov6? (v means the number is below)
Explanation:
Solution:- The given name is 3,6-diethyl-2,8-dimethyl-4-decyne. The number of parent carbon chain are written at the end along with the suffix for the multiple bond or the functional group.
Looking at the given name, there is dec at the end which stands for 10 carbons chain. Also, the suffix used is -yne which is used for a triple bond between carbon atoms. Since it says 4-decyne, it states that the triple bond is at 4th position in the parent carbon chain.
3,6-diethyl states two ethyl groups at number 3 and number 6 carbons and 2,8-dimethyl states two methyl groups at number 2 and number 8 carbons.
Remember that the numbering is started from the side to which the multiple bond is closer and the substituents are written in alphabetic order. Since the e of ethyl comes before m of methyl, the ethyl groups are written before methyl groups in the naming and while doing this the prefixes like -di or -tri etc are not considered. So, the structural formula of the compound will be:
Answer:
The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Explanation:
The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Answer:
Tarnish,Striations,Shape,Color,Specific Gravity,Hardness,Ductility.
Explanation:
Ductility: Gold is usually very ductile in nature and will bend on pressure.Fool's Gold will break or resist the pressure.
Hardness: Gold(hardness scale 2.5) will most probably not scratch a copper surface (hardness of 3), but pyrite will very easily be able to do that. Even Gold will be scratched by copper pieces but copper can barely scratch other metals.
Color: Pyrite color is brass type. Gold has a little yellow to golden colour.
Tarnish :God can't be tarnished that easily whereas Pyrite can.
Answer:
A. Magnesium
Explanation: Its because Magnesium is Heavier than Bromine and there is 24.3050 atom in Magnesium but there is only two in Bromine
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