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

Which lines in this excerpt from Leo Tolstoy’s The Death of Ivan Ilyich reflects the author’s opinion that the members of the medical profession don’t really ca

which neurotransmitter is no longer readily produced in alzheimer's patients

The purpose of having a minimum wage is to _____. a. educate workers about what they could be making b. guarantee that workers are paid fairly and not exploit

Classify each of the following bonds as non polar covalent polar or ionic

Explain what a 'carbon credit marketplace' is and why it helps industries move toward polluting less.

Is earthwork a medium? What is the medium of Spiral Jetty, earthwork or sculpture?

which of these is outside the solar system A nebula B asteroid belt

The band as a total of 152 members. Some of the members are in the marching band, and the rest are in the concert band write an equation that models how much ma

John called the Lord Jesus the "Word." True False

Find the area of each figure.round to the nearest tenth if necessary. Please help both question