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Lady bird [3.3K]
3 years ago
15

What do physicists study? O A. Economics O B. The properties of matter C. Living things D. How matter and energy interact​

Chemistry
1 answer:
Bad White [126]3 years ago
5 0
D. how matter and energy interact
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Two states of matter are described below. State X: Particles are ions that are far apart State Y: Particles are molecules that a
Temka [501]

Answer 1 : State X is lightening and state Y is air.

Explanation:

Lightening is a phenomena which occurs due to electrostatic interaction between negatively charged ions and positively charged ions present in atmosphere.

Air is composed of various molecules of gases.

Answer 2: Third statement is correct.

Explanation:

When the vegetables are chopped change in shape of the vegetables that is physical change takes place.

When food is broken down into simpler form during digestion, chemical change takes place. During digestions the chemical composition of food changes as it was broken down into simpler molecules.

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3 years ago
Which two trials could be used to measure the surface area
OLEGan [10]

Answer:

Trials A and B

Explanation:

4 0
3 years ago
Calculate the mass of sucrose needed to prepare a 2000 grams of 2.5% sucrose solution.
meriva

Answer:

50 g Sucrose

Explanation:

Step 1: Given data

  • Mass of solution: 2000 g
  • Concentration of the solution: 2.5%

Step 2: Calculate the mass of sucrose needed to prepare the solution

The concentration of the solution is 2.5%, that is, there are 2.5 g of sucrose (solute) every 100 g of solution. The mass of sucrose needed to prepare 2000 g of solution is:

2000 g Solution × 2.5 g Sucrose/100 g Solution = 50 g Sucrose

5 0
3 years ago
Limitation for osmosis experiment
taurus [48]
What was the question here?
5 0
2 years ago
3.01 × 1023 molecules H2O
snow_tiger [21]

Answer:

0.5 mole

Explanation:

The question isn't even clear

But I'm guessing you want to ask the number of moles

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7 0
3 years ago
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