Hi! Can someone help me solve all these questions relating to Specific heat capacity and energy? Thanks a lot. 1. Calculate the heat energy, in kJ, needed to increase the temperature of 3.0L of water from 25 degrees celcius to 100 degrees celcius.

2. Calculate the increase in temperature that will occur when 5.0 kJ of energy is added to 200mL of water.

3. Calculate the mass of water that can be heated from 10 degrees celcius to 35 degrees celcius by the addition of 1000 J of energy.

4. Calculate the heat energy, in kJ required to evaporate 50.0g of water at 100 degrees celcius.

5. Calculate the heat energy, in kJ, required to melt 1.0kg of ice at 0 degrees celcius.

6. Calculate the mass of water, in g, that can be evaporated at 100 degrees celcius by the addition of 3500 kJ

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

Nonpoint source pollution is difficult to control because it

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o