When both sodium and Hydrochloric acid are added to a test tube, what will be observed?
When a Metal and acid react together they form a salt, and hydrogen gas. You can't really see the salt when is is formed, as salts dissolve in solution. However you can see the hydrogen gas bubbles. So fizzing or effervescence would be an appropriate description.
Related Chemistry A Level answers
All answers ▸What is optical isomerism and how can you distinguish between optical isomers?
How do you answer a long answer question on how buffer systems work?
State the crystal structures of SiO2 and CO2 and why one has a higher melting point than the other.
Calculate the pH of the solution formed when 30 cm3 of 0.150 moldm-3 aqueous sulfuric acid is added to 30 cm3 of 0.200 moldm-3 aqueous potassium hydroxide at 25 C.