Copper atoms are oxidised at the positive electrode to Cu2 + ions, as shown in the half equation.

Cu (s) Cu2 + (aq) + 2e-

(i) How does the half equation show that copper atoms are oxidised?

A single electron can have the following set of quantum numbers: n=3, l=2, ml=0, ms = - 1/2. True or False

7. What is the role of H3PO4 in aspirin synthesis?

How many valence electrons does an atom of the halogen family have?

A compound consists of 72.2% magnesium and 27.8% nitrogen by mass. what is the empirical formula

Consider the two electron arrangements for neutral atoms A and B. What is the difference between atom A and atom B? A - 1s2, 2s2, 2p6, 3s1 B - 1s2, 2s2, 2p6, 5s1

Hard water deposits (calcium carbonate) have built up around your bathroom sink. Which of these substances would be most effective in dissolving the deposits? Select one: a. ammonia b. bleach (sodium hypochlorite) c. lye (sodium hydroxide) d.

How does plasma, the fourth state of matter, differ from gas? A. Plasma has indefinite shape and volume; gas does not. B. Plasma has definite shape and volume; gas does not. C. Plasma conducts electricity; gas does not. D.

Using the relative E0 values determine which of the following reactions are electrically possible. Mg (s) + Br2 (I) ⟶ MgBr2 Choose the answer from the parenthesis.

3 x 1023 molecules of element Z have a mass of 38 g. What is the mass of 1 mole?

Which type of element has an electron configuration of 1s22s22p63s23p64s1? Question 1 options: alkali metal alkaline earth metal noble gas halogen