Answer: (b)
(d)
(e)
(g)
Explanation:
The four (4) important steps that are needed to obtain an accurate melting point is given as;
• First is Grinding: Grind the sample into fine powder.
• Second is Filling: Fill the capillary tube with about 3mm of powder
• Third is Adjusting the temperature: Set the voltage to rise quickly to 20° below the expected temperature, then re-adjust so the temperature rises at 2° per minute.
• Lastly is Observation and recordings: Record the temperature the temperature at which liquid first appears and the temperature at which the last crystal disappears.
I hope this helps, cheers.
Precision relates to how close the answers are to each other, so I’d think it would be D because of the limited range between data points.
Answer:
Metals, non metals and metalloid
Explanation:
Answer:
Your answer should be B.) C, Si, Ge, Sn! I hope this helps you! :)
Answer:
nano3+agcl2
Explanation:
double displacement reaction
