Chemistry, 12.01.2021 18:00 chrissulli4605
4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 160g mol, is burned completely in excess oxygen, and the mass of the products carefully measured:
product mass
carbon dioxide 6.60 g
water 1.80 g
Use this information to find the molecular formula of x.
This is the chemical formula for talc (the main ingredient in talcum powder):
Mg3(Si2,O5)2(OH)2
An analytical chemist has determined by measurements that there are 26 moles of silicon in a sample of talc. How many moles of hydrogen are in the sample?
An unknown compound has the following chemical formula
H2,Ox
where x stands for a whole number.
Measurements also show that a certain sample of the unknown compound contains 9.0 mol of oxygen and 18.07 mol of hydrogen. Write the complete chemical formula for the unknown compound.
Answers: 2
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Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants
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Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally
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4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have...
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