A sample of H2 gas is collected over water by reacting zinc metal with a solution of hydrochloric acid (HCl). In addition to the hydrogen gas, a solution of zinc chloride is also formed. 1. Write the balanced chemical equation for the reaction. Include all states of matter.

2. Write the net ionic equation for this reaction. Include all states of matter.

3. Based on intermolecular forces, why is the H2 gas able to be collected over water rather than being dissolved in the water?

4. If a 0.25 g sample of Zn reacts with excess HCl…
How many moles of HCl will react?

5. How many moles of H2(g) should be produced?

6. The experiment takes place under the following conditions: 300 K, Patm = 777 mmHg, PH2O at 300 K = 26.7 mmHg. How many liters of H2 would be generated under these conditions from the reaction of 0.25 g Zn with excess HCl?

7. How would the amount of H2 collected change if the piece of zinc that reacted had a mass of 0.35 g? Explain.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give