Say what is formed at the cathode and at the anode during the electrolysis of the following substances. molten lead Bromide
molten zinc chloride
sodium iodide solution
molten sodium iodide
copper II chloride solution
Dilute hydrochloric acid
magnesium sulphate solution
sodium hydroxide solution

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For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.