An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. A base is an ionic compound that produces negative hydroxide ions when dissolved in water. Bases taste bitter and turn red litmus paper blue.
I believe c. I hope it helps :)
Answer:
mp -5; bp 30
Explanation:
That will be a liquid at room temperature, and it will evaporate quite quickly. Room temperature is generally considered 20 degrees Celsius. Choice B melts from a solid to a liquid at -5 degrees, so it's a liquid at room temperature as long as the boiling point is higher than 20 degrees.
Answer:
3.38 moles of neon
Explanation:
First you have to multiply the volume (75.8 L) by the density to get the mass. Neon has a density of 0.9002 g/L at STP, we can just assume it's 0.9 g/L.
That leaves the mass at 68.22 g
Then, you divide the mass by the molar mass to get the number of moles. The molar mass of neon is 20.1797 u, we can leave it at 20.18
That leaves you at approximately 3.38 moles of neon
