Na + and Mg2 + ions each have ten electrons surrounding their nuclei. Which ion would you expect to have the larger radius? Explain your answer.

4 Which quantity represents the number of protons in an atom? (1) atomic number (2) oxidization number (3) number of neutrons (4) number of valence electrons

Between the 18 groups on the periodic table, which group is most likely to give away an electron during bonding?

A 50.51g sample of a compound made from phosphorus and chlorine is decomposed. Analysis of the products showed that 11.39 g of phosphorus atoms were produced. Answer using three significant figures.

How does the structure of amino acids allow them to form a polypeptide

How many elements? Ca4H7 (OH) 5

Calculate the moles of new H₂ O₂ using the balanced formula below and the average moles of KMnO₄ from calculation #2. The average moles of KMnO₄ is 0.90mol. 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂ Edit: I got 2.

How many grams of CaC2 would make 23.6g C2H2?

Shane performed the following trials in an experiment. Trial 1: Heat 30.0 grams of water at 0 °C to a final temperature of 40.0 °C. Trial 2: Heat 40.0 grams of water at 10.0 °C to a final temperature of 40.0 °C.

According to the law of conservation of ___ in an isolated system the initial total momentum before a collision equals the final total momentum.

What is the correct name fore this formula Al2O3