spicymery spicymery

03-03-2020
Chemistry

contestada

How much heat is released when a 20g block of lead cools from 150°C to 120°C

How much heat is released when a 20g block of lead cools from 150C to 120C class=

Respuesta :

kinyonethan1 kinyonethan1

03-03-2020

Answer:

96 Joules of heat released.

Explanation:

q=mc∆t

q=(20)(.16)(-30)

q=-96

Q negative means heat is released.

Answer Link

Otras preguntas

Pls help. I will offer the brainliest to whoever answers this correctly

Do my points regenerate the next day

A bakery used 30% more butter this month than last month. If the bakery used 250 pounds of butter last month, how much did it use this month

Graph y=−4(10x). show graph

In Act 3, Scene 1, how does Tybalt's interaction with Mercutio move the plot forward? The interaction between Tybalt and Mercutio moves the plot forward by

A jeweller melts 500 g of silver to pour into a mould. Calculate how much energy was released as the silver solidified.

Carolyn has just retired, and has 400000 dollars in her retirement account. The account will earn interest at an annual rate of 6 percent, compounded monthly. A

A catapult is used to project a stone of mass 50g. If the rubber has an elastic constant 200Newton per meter and was stretch 5cm. What speed can it give to the

A ________ is a small tumor on a stern attachmentA.) dentureB.) pyrosisC.) melena D.) polyp

Red eyes in fruit flies are dominant over white eyes using punnet squares find the possible eye colors of the F1 generation of each of the following crosses Rr