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 ▸How does the reducing ability of halide ions vary?
At 25 °C, the initial rate of reaction is 3.1 × 10−3 mol dm−3 s−1 when the initial concentration of C is 0.48 mol dm−3 and the initial concentration of D is 0.23 mol dm−3 . Calculate a value for the rate constant at this T when rate = k [C][D].
Briefly describe the concept of electronegativity and explain why CCl4 is a non-polar molecule
Describe why phenol reacts more readily with bromine than benzene does.