Physics, 15.12.2020 01:30, obrunelle4678

2. Classify the following as being a physical (P) or chemical (C) change. A. Sodium hydroxide dissolves in water.
B. Hydrochloric acid reacts with potassium hydroxide to produce a salt, water, and heat.
C. A pellet of sodium is sliced in two.
D. Water is heated and changed to steam.
E. Potassium chlorate decomposes to potassium chloride and oxygen gas.
F. Iron rusts.
G. When place in water, a sodium pellet catches on fire as hydrogen gas is liberated.
H. Evaporation of alcohol.
I. Ice melting.
J. Milk sours.
K. Sugar dissolves in water.
L. Wood rots.
M. Pancakes cooking on a griddle.
N. Grass growing in a lawn.
O. A tire is inflated with air.
P. Food is digested in the stomach.
Q. Water is absorbed by a paper towel.
R. Grinding coffee beans
S. Shredding up your homework (please DO NOT do this)
T. Baking chocolate chip cookies

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 03:30, coollid876

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

Answers: 1

continue

Physics, 22.06.2019 03:50, am2garcia5

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Answers: 3

continue

Physics, 22.06.2019 08:00, jjxt126

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Answers: 1

continue

Physics, 22.06.2019 22:50, Sawas

The chart shows daniela’s run through her race. what is her velocity? 1.5 m/s 2 m/s 2.5 m/s 5 m/s

Answers: 1

continue

Do you know the correct answer?

2. Classify the following as being a physical (P) or chemical (C) change. A. Sodium hydroxide disso...