How do humans spread organisms around the world?

In the reaction SO2Cl2 double arrows SO2 + Cl2 heat is evolved. What happens when chlorine (Cl2) is added to the equilibrium mixture at constant volume?

Which of the following is smaller than the atomic radius of beryllium? a. the ionic radius of beryllium b. the atomic radius of lithium c. the ionic radius of carbon d. the atomic radius of magnesium

503 nm (wavelength of maximum solar radiation) Calculate frequency

10 Determine if these solutions are acidic, neutral, or basic based on their pH values. hand soap: 10 Acidic Neutral Basic chocolate milk: 7 apple juice: 3 shampoo: 6 mouthwash: 5 tap water: 8

Acids produce ___ ions when dissolved in water. acids react with many ___ to produce ___ gas.

How many atoms are present in 0.0845 moles of tungsten (W) ?

Indicate which reactions are redox reactions. check all that apply. check all that apply. 2na (s) + cl2 (g) →2nacl (s) cd (s) + pb2 + (aq) →cd2 + (aq) + pb (s) pb (no3) 2 (aq) + 2licl (aq) →pbcl2 (s) + 2lino3 (aq) c (s) + o2 (g) →co2 (g)

If the mass of a material is 119 grams and the volume of the material is 20 cm3, what would the density of the material be?

There are some exceptions to the trends of first and successive ionization energies. For each of the following pairs, explain which ionization energy would be higher: (a) IE₁ of Ga or IE₁ of Ge (b) IE₂ of Ga or IE₂ of Ge (c) IE₃ of Ga or IE₃ of Ge

Bases in solution produce what type of ions? a. sulfide ions b. chloride ions c. hydroxide ions d. hydronium ions