1) what is the balanced equation for the reduction of gold ions in water to solid gold. 2) calculate the pH of lemon juice to three significant, with a hydrogen ion concentration of 3.65x 10^ -3 mole dm -3. Show all steps of your calculations and include all correct units.

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

What human activity increases beach erosion?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.