8. How many joules are needed to change 42.3 g of lead from 44.3°C to 76.8°C? The specific heat of lead is 0.130 J/g °C.

please help <3

Select the atomic models that belong to the same element

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have