1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sasho [114]
3 years ago
15

Debbie was doing a science lab, and she was instructed to decide whether a piece of plastic would float or sink without actually

putting the plastic in the water. How could she do this?
Chemistry
2 answers:
Mandarinka [93]3 years ago
8 0
Find the density of the plastic. if the density is less than that of water, it's going to float. If it's more than the density of water, then it's going to sink.
Zinaida [17]3 years ago
8 0
You have to find the density
You might be interested in
Identify any solutes and solvents present in a mixture of 0.05 mol ethanol, 1 liter water, and 0.2 g hydrogen
Varvara68 [4.7K]

Answer:

Water is the solvent

Both the ethanol and the hydrogen peroxide are the solute

Explanation:

Both the hydrogen peroxide and ethanol are sisobable in water.

There are 0.05 moles of ethanol.

1 litreof water contains 55.55 moles of water.

0.2 g of hydrogen peroxide contains 0.2/34 = 0.0059 moles of hydrogen peroxide (the 34 is the molar mass of hydrogen peroxide).

Since there are more moles of water, water becomes the solvent and the other two liquids dissolve in it.

6 0
3 years ago
Which of the following describes a way in which chemistry affects how you
stepladder [879]

Answer:

I guess A, I am not sure...

6 0
3 years ago
Read 2 more answers
Which law suggests that at a constant pressure, the volume of gas is directly proportional to its temperature?
igor_vitrenko [27]

Answer:

The law that suggests that at a constant pressure and the volume of gas directly proportional to its temperature is the Boyle's law.

Explanation:

4 0
2 years ago
A certain element has only two naturally occurring isotopes: one with 18 neutrons and the other with 20 neutrons. The element fo
melamori03 [73]

Answer:

[Cl-18]⁻ & [Cl-20]⁻

Explanation:

By definition isotopes are elements with the same number of protons by different number of neutrons. Elements X-18 & X-20 have 17 protons and represent Chlorine isotopes Cl-18 & Cl-20 each with 17 protons and 18 electrons to give the isotopes a -1 oxidation state. Both isotope of chlorine have 7 electron in its valence shell and 10 electrons in its core structure.  Gaining 1 electron fills the valence octet and establishes a -1 oxidation state.

7 0
2 years ago
For an insoluble compound, how might you prevent formation of the precipitate
anastassius [24]
<span>protect it by covering it by lyophilic sol.</span>
8 0
3 years ago
Other questions:
  • a sample of h2 gas is collected over water at 23 degrese celsius, if the observed pressure is 750.0 torr, calculate the partial
    12·1 answer
  • What substance is transpired through the stomata of the leaves in a plant?
    12·2 answers
  • Which of the following is one part of a chemical formula?
    6·1 answer
  •   What is the name of this hydrocarbon?
    12·2 answers
  • If the temperature of a gas is raised from 30°C to 60°C, what happens to the pressure?
    5·1 answer
  • 1. If 500 ML of a 3 L sample of 0.20 M sodium chloride solution is spilled, what is the concentration of the remaining solution?
    9·1 answer
  • Why can't liquids change volume but gases can
    6·1 answer
  • How many centimeters are in 5 miles? Hint: 1 miles = 5280 feet
    13·1 answer
  • Molecules that are too large to flow across the<br> membrane need help from what structures?
    15·2 answers
  • Q+ ( poistive ion ) is an ion of element Q.<br> What has the highest value in the ion?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!