Calculate the molarity of each of the following solutions. Use the periodic table if necessary. A salt solution with a volume of 250 mL that contains 0.70 mol NaCl.
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Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.