Answer:
Electric hot plate
Explanation:
Considering that the liquid sample is flammable, it wouldn’t be a good idea to have it near a source of fire which the Bunsen burner provides, rather it would be better to heat through an electric hot plate as its not near a source of flame and instead produces heat through electricity.
Answer:
Molarity of the sodium hydroxide solution is 0.04687 M.
Explanation:
Amount of potassium hydrogen phthalate = 0.3420 g
Moles of potassium hydrogen phthalate =
According to reaction, 1 mole of potassium hydrogen phthalate reacts with 1 mole of sodium hydroxide, then 0.001675 moles pf potassium hydrogen phthalate will :
of NaOH
Moles of sodium hydroxide = 0.001675 mol
Volume of sodium hydroxide solution = 35.73 mL = 0.03573 L (1 mL = 0.001 L)
Molarity of the sodium hydroxide solution :
Answer:
The number of energy levels increases as you move down a group as the number of electrons increases.
Explanation:
Each subsequent energy level is further from the nucleus than the last. Therefore, the atomic radius increases as the group and energy levels increase. 2) As you move across a period, atomic radius decreases.
Neon is a member of the noble gas family. Other elements in this family includes helium, argon, krypton, xenon, and radon. These gases are in Group 18 (VIIIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. The noble gases are sometimes called the inert gases. This name comes from the fact that these elements do not react very readily. In fact, compounds exist for only three noble gases—krypton, radon, and xenon. Chemists have yet to prepare compounds of helium, neon, or argon.
