They saw that the rock was deep purple. A quantitative B qualitative

I dont know the steps to percent yield homework

94.0 g of a metal at 88.0°C are added to 51.0 g of water at 34.4°C. When the system reaches constant temperature, the temperature is 37.5°C. What is the specific heat of the metal? The specific heat of water is 4.184 J/g·°C.

Glycine has two ionizable groups, a carboxyl group and an amino group. Calculate the fraction of glycine that has its amino group protonated at pH 8.6. The pKa values for glycine are pK1 = 2.34 (carboxyl group) and pK2 (amino group) = 9.60.

Which element is reduced in this reaction? 2cr (oh) 3+3ocl-+4oh-→2cro4-2+3cl-+5h2o enter the chemical symbol of the element?

Most of the elements of which region of the periodic table are located directly to the right of the metalloids? answer first essay thing sec

What are some facts about the element Rutherfordium

Luis set a glass of ice water out side is the sunshine. when he looked at the glass 10 minutes later, the contents had changed. what kind of change happened to the ice water? A. evaperation B. conduction C. chemical change d. sudden change

A substance is considered to have a smaller surface area when ... A. it is a fine powder B. it is in large chunks C. you have a small amount of the substance D. you have a large amount of E. the substance

Which is the noble gas notation for chlorine? A-[Ne] 4s2 4p5 B-[Ne] 3s2 3p5 C-[Ne] 3s2 3p3 D-[Ne] 3p2 3p5

Is argon long hand or noble gas