A lead bar required 2000 Joules of energy to increase its temperature from 25ºC to 150ºC. What is the mass of the lead bar? (Specific heat of lead = 129 J/kg°C) A .124 kg
B 124 kg
C 12,444 kg
D 1,244 kg

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

What is the percent by mass of oxygen in fe2o3

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll