27. What volume of 5.00 M HNO3 (aq) must be diluted to prepare 50.0 mL of 1.25 M HNO3 (aq) solution?

During human development, certain cells of the blastocyst can develop into any cells of the human body, but not into cells of the placenta. What kind of stem cells are these? O A. Multipotent stem cells O B. Pluripotent stem cells O C.

Which transition elements in the first transition series have anomalous electron configurations?

Find [OH-], pH and pOH of a solution where [H+]=7.2x10-2M

Which will decrease the rate of a reaction? changing the temperature from 90ºC to 40ºC adjusting the concentration from 30 ng to 60 ng placing the substance in a smaller container grinding the substance into a powder

Suppose 1.87g of nickel (II) bromide is dissolved in 200. mL of a 52.0mM aqueous solution of potassium carbonate. Calculate the final molarity of nickel (II) cation in the solution.

Is layers of sediment forming at the bottom of the ocean erosion?

How to find the better buy of two of the same item, but they have different units of measurements and different costs.?

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitrogen C. Excess salt D. Acidic compounds

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?

In a chemical equation the products appear on which side of the equation? A. Left B. Top C. Right D. Bottom