Is burning a wooden match chemical or physical change

Classify each salt as acidic basic or neutral. licn alcl3 kbr

Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent in the redox reaction. mg (s) + cl2 (g) ⟶mg2 + (aq) + 2cl - (aq)

Why does ground water have more dissolved substances than surface water?

How might we create the best possible solution to a problem?

What is the empirical formula of a compound that contains 32.39 percent sodium, 22.53 percent sulfur, and 45.07 percent oxygen?

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below

How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?

A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.

Assign the oxidation number for (NH4) 3PO4

When gold is melted and formed in a mold to make a piece of jewelry, what type of change is taking place?