julesthecools julesthecools

03-05-2017
Chemistry

contestada

Please answer the questions in the pic! 15 points!

Please answer the questions in the pic 15 points class=

Respuesta :

JavierCollante JavierCollante

04-05-2017

1. 80 Kj
2. 120-80= 40 Kj
3. 120-20= 100Kj
4. 20-80= -60Kj
5. +60 Kj
6. Exothermic because 4 is negative

Answer Link

Otras preguntas

.What is the rate of change of the line that passes through (8,6) and (12,14)?

Hiiiooo!! Can someone please help me ❤️❤️❤️

newtons = mass x _______a) capacitanceb) inductancec) gravitational field strength

What does the Constitution reflect of the country's founders? their vision their optimism their future planning their protective powers

On a Word document, please submit a short answer (1 or 2 paragraphs of 3-4 sentences each) for the following prompt: What were some similarities between the Ame

Which best describes electromagnetic waves? A. transverse waves made up of electric and magnetic fields B. longitudinal waves made up of vibrations that move th

An insurance company divides its policy holders into three categories: low risk, moderate risk, and high risk. The low-risk policy holders account for 55% of th

c) Emyr thought of two whole numbers. When he multiplied them together, the answer was 24. When he added them together, the answer was 10. What are the two numb

LAST QUESTION I NEED! Should be easy (I don’t think the answer is 4 might be wrong if given an explanation)

4. Which trigonometric expression is equal to cos 72°? A. cos 55° B. cos 50° C. sin 61° D. sin 18°