Which of the following would you expect to form an ionic bond when combined?

a) Li and Na

b) Mg and Cl

c) P and O

d) H and Cl

A zinc atom loses 3 electrons to become a zinc ion

Which of the following elements has the highest electronegativity? A. Bromine B. Arsenic C. Germanium D. Selenium

Which characteristics made Priestley and Lavoisier good scientists? Check all that apply. A. curiosity B creativity C narrow mindedness D skepticism

10. If a reaction has ΔS = - 100 J/K and is spontaneous, what must be true of the surroundings? A) ΔSsurroundings > 100 J/K B) ΔSsurroundings > - 100 J/K C) ΔSsurroundings = 100 J/KD) ΔSsurroundings < - 100 J/K E) ΔSsurroundings < 100 J/K

Zn+2HCl⇒ZnCl₂+H₂ Assuming you start with 10.0 g of zinc and 10.0 g hydrochloric acid, identify the limiting reagent and determine what mass of the other will remain after the reaction runs to completion.

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