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there are 3 unknown substance a,b and c that need

A chemist is studying an unknown substance and could break the substance into its elemental components only by using chemical
1. 1 answer
2. 100 views
A cylinder with internal diameter of5cm and 15 cm high is filled up with an unknown substance. The mass of the cylinder is 4.6
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2. asked by Lara
3. 1,027 views
Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the
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2. asked by Jaelin
3. 660 views
Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the
1. 1 answer
2. asked by Ryan
3. 672 views
A solution containing 0.750g of an unknown substance in 30.0g of cyclohexane was found to freeze at 3.1 degree Celsius. What is
1. 2 answers
2. asked by Princess
3. 2,008 views
Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information
1. 0 answers
2. asked by Daniel
3. 1,108 views
An unknown substance used in the Agricultural sector has the formula CN3H5 .Calculate the percent by mass of nitrogen in the
1. 1 answer
2. asked by ezile
3. 147 views
An unknown substance used in the Agricultural sector has the formula CN3H5 .Calculate the percent by mass of nitrogen in the
1. 19 answers
2. asked by ezile
3. 247 views
6. The table shows the physical properties of an unknown substance after it was tested in a lab. What is the unknown substance
1. 3 answers
2. asked by lol
3. 98 views
Scientists identify an unknown substance on Mars. They collect the substance and record its physical properties. The mass of the
1. 1 answer
2. 24 views