1. C
2. D (I’m not entirely sure)
3.energy can neither be created nor destroyed, only change forms.
4. C
5. A
6. C
I’ve researched and tried to answer these questions correctly.
There are 3 ways,
1) Increase the temperature of the solvent- The higher the temperature of the solvent, the faster we can expect the solute to dissolve
2 )Increase the rate of stirring- The faster the rate at which we stir the mixture, the faster we can expect the solute to dissolve
3) Decrease the size of the solute particles- The smaller the size of the particles, the faster we can expect the solute to dissolve in the. This is because small particles have a larger surface area that come into contact with the solvent
Hope this helps :)
Answer:
the concentration of hydrochloric acid
the temperature in heating
