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1. Determine the classification of the following matter as compound, element, homogeneous mixture or heterogeneous mixture and explain why for each:a. Lemonadeb. Sugar completely dissolved in waterc. One M&M candyd. Tungstene. Air
2. The following ions have how many protons and electrons:a. S2-b. Cr3+
3. For oxygen reacting with hydrogen, how many hydrogen atoms must react with one oxygen atom in order to fill oxygen's valence shell and what is the formula for this compound between oxygen and hydrogen?
4. If 2 new elements have been discovered and one is R, a new element from the family with 3 valence electrons and Z, a new element from the family with 6 valence electrons. Write the formula for the binary compound between element R and element Z.
Calculate the concentration of Calcium (MW 40.078 g/mol) in the H2O in units of gram per 100 mL and calculate the concentration of Calcium (MW 40.078 g/mol) in the H2O in units of gram per 100 mL.
You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.
On average, cow milk is 4.7%(w/w) lactose. The molecular weight of this disaccharide is 342.3g C12H22011. Assuming milk has the density of water.
Using a phosphorus 12.39 g sample that reacts with 42.54 grams of chlorine to produce only phosphorus Trichloride (PCl3). If it is the only product, determine what mass of PCl3 is formed?
Find molarity, molality, percentage composition, boiling and freezing point of a solution - What are the boiling and freezing points of the solution?
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
How long will it take for 75% of nitrogen dioxide to decompose if the initial concentration of nitrogen dioxide is 1.33M
Determine the mass of a mixture of 1.33x10^24 formula units of Sodium sulfate, 1.500 moles of Water and 3.77g of silver chloride?
Calculating the equilibrium constant (Keq) for the given reactions - Determine the Keq for the following reactions
1) Draw all aldehyde and ketone isomers of C 6 H 12 O. 2) What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
What is the compounds molar mass if the density of a gaseous compound of phosphorous is 0.943g/L at 474K when its pressure is 728 torr.?
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