Using the formula (Q =MCvT), perform the calculations below. 3.100g of water at 4*C is heated to 29*C. If the specific heat of water is 4.18j/g*C.
Calculate the amount of energy needed. Hint find the change in temperature before solve!
Q= M c v T. m= mass (g), c = heat capacity, v T = change in temp (T f-Ti) .
Q= (100).(4.18).(29*C- 4.0*C)

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

What are the constituent metals of stainless steel?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)