When acetic acid is dissolved in water to make vinegar, acetic acid is the .
When a small amount of carbon is dissolved in iron to make steel, the iron is the .
When a small amount of hydrogen gas mixes with nitrogen gas, hydrogen is the .
When carbon dioxide gas dissolves in water, water is the .
When a small amount of solid iodine is mixed with ethanol, ethanol is the .

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.