Question

Which example best demonstrates the benefit of understanding physical properties?

(Select all that apply.)

Scientists can easily classify mixtures of unknown substances.
Scientists can predict how well two substances will react.
Engineers can design better bridges because they know how metal changes shape.
Engineers can design safer structures because they understand the flammability of building materials.

Answer 1

@Awolflover1

Answer 2

@TheSmartOne

Answer 3

@ilovebmth1234

Answer 4

@ILovePuppiesLol

Answer 5

@Awolflover1 do you know this one?

Answer 6

Which of the following statements describe the physical properties of a penny?

(Select all that apply.)

It gets hot in the sun.
It is smooth and shiny.
It is light and thin.
It turns brown in water.

Answer 7

@Awolflover1

Answer 8

@jabez177

Answer 9

Think about it: Physical Properties Include:
Shape
Color
Odor
Hardness

Answer 10

Which answer or answers describe physical properties of a penny?

Answer 11

2,3,4?

Answer 12

Is 4 really a physical property?

Answer 13

i have no idea.. i have so much to do and im overwhelmed haaha

Answer 14

Well, I can help you. Mainly because I just learned about this stuff, 20 minutes ago. So because you are overwhelmed, I am going to tell you it is just two and three, at least according to my research.

Answer 15

Thank you so much!

Answer 16

An antacid tablet added to a glass of water fizzes and bubbles as it mixes.

Which of the indicators of a chemical change is represented in the scenario?

formation of a gas
formation of a precipitate
change in energy
change in color
SAVE AND EXIT

Answer 17

@Miss.rose

Answer 18

last one.. sorry

Answer 19

It's okay.
I believe for this question the answer is 1.

Answer 20

I may be wrong, but that is what I concluded from my research.

Answer 21

you were correct thank you so mucg. i really appreciated it :)

Answer 22

@Miss.Rose