Questions 11,12

A) 2100 calcal to kcalkcal B) 425 JJ to cal   C) 2.4 kJkJ to cal

gress has been saved Question 2 of 4 Which of the following statements correctly describes mechanical energy? O It is a type of chemical energy. energy produced by vibrating electrons. energy due to the position or motion of objects on a macroscopic level O the sum of all forms of potential energy Previous search 近

I got two wrong but I'm not sure which two I got wrong

27. Pepper and Salt mixture is a great example of a heterogeneous mixture.   Group of answer choices a)  True b)  False

Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time passes. Gasoline is an example of a: A) heterogeneous mixture B) Chemical compound C) Chemical element D) Solution

= 24 = 25 = 26 27 = 28 29 = 30 F 31 = 32 = 33 34 35 36 Calculate the amount of heat needed to boil 14.8 g of ethanol (CH,CH,OH), beginning from a temperature of -26.4 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. dh Submit Assignment Continue MacBook Air A. FI F12 F9 F10 FIC FB 000 D00 F4 F7 20 F6 F5 esc F3 F1 & deleto $ %D @ 7 8 2 3 4 5

What state of matter has the most space between particles? Group of answer choices solid liquid gas triple point

Find the weighted average of these values. Value Weight 5.00 75.0% 6.00 15.0% 7.00 10.0% weighted average:

[answer with correct answer]   Water exists as a solid (ice), a liquid and a gas (steam). Which state of matter will water be when it is easiest to compress?