Okay,Please help guys.Is a plastic cup a heterogeneous OR homogeneous?Please help.Im doing it now...

Answers

Answer 1

Answer: it should be homogeneous because it would be made of the same type of plastic. there may be small variations but they will be minute.

Related Questions

Which statement best explains the relationship between an area's geography and the temperature of its surface water?A.) Areas at low latitudes have the warmest water because they have the least change in temperature throughout the year.B.) Areas at low latitudes have the warmest water because they receive the most direct sunlight.C.) Areas at high latitudes have the warmest water because they have the longest seasons.D.) Areas at high latitudes have the warmest water because their days are the longest.
Which of the following would be and example of an independent variable
What variable can you change in an experiment?
When mixed, which states of matter form only a homogeneous mixture?A.two liquidsB.two gasesC.a solid and a liquidD.a liquid and a gas
Two objects attract each other with a gravitational force of 25 newtons from a given distance. If the distance between the two objects is reduced by a factor of 5, what is the changed force of attraction between them?

What might happen to an organism if its habitat could not meet one of its needs?

Answers

The organism could adapt over time and find another way to satisfy this need, it could move to a new location, or the organism could eventually die off.

Kendall wants to determine if there is a trend in air temperature changes during April . Which procedure should she chose? A) measure the temperature every hour for 1 day
B) measure the temperature at noon everyday

P.S This is Science

Answers

The answer is letter A

I think the answer is A

Some people think that wind power should be used for all the electricity in the United States. Which argument could be used to dispute this idea?

Answers

Answer:

The arguments that could be used to challenge the idea of using wind power to provide electricity to the whole country is that there is a difficulty in capturing wind, wind power causes visual and sound impacts, as well as an impact on fauna.

Explanation:

Wind energy is a widely used method for obtaining power through wind power, which drives windmill and windmill-like mechanisms connected to a generator that produces electricity.

The main advantage of wind energy is that it is considered a clean energy, that is, obtained from renewable sources and without generating any kind of polluting waste during its production and consumption.

Although wind energy is one of the best options for obtaining energy from renewable and clean sources, it is possible to see some negative points of this technique. These negative points are:

Difficulty catching wind: Because it is totally dependent on wind and air currents, it is possible that an unfavorable climate will compromise production;
Visual Impact: The installation of wind turbines can cause major changes in the landscape, either due to the space required to install the equipment or the size of the necessary mechanisms;
Animal Impact: Modifications related to the installation of wind energy equipment change the habitat of several animals, especially migratory birds, so that they have to adapt;
Sound impact: Wind energy production is very noisy, which can frighten animals and disrupt the daily lives of people living in areas near the wind farm.

There might not be ample enough wind to power all the electricity in the United States and in some places there might not be wind at all so people wouldn't be able to have electricity.

Gasoline is a mixture of compounds. A gasoline sample was found to be 2.851% (by mass) octane (C₈H₁₈). 482.6 g of gasoline is combusted to produce gaseous carbon dioxide and gaseous water.Write out the balanced combustion reaction of octane with oxygen gas to form carbon dioxide and water. Submit an image of the balanced reaction.
Show all work.

Answers

Answer:

See below.

Explanation:

The mass of octane in the sample of gasoline is 0.02851 * 482.6 = 13.759 g of octane.

The balanced equation is:

2C8H18(l) + 25O2(g) ----> 16CO2(g) + 18H2O(g)

From the equation, using atomic masses:

228.29 g of octane forms 704 g of CO2 and 324.3 g of H2O

So the mass of CO2 formed from the combustion of 13.759 g of octane = (704 * 13.759) / 228.29

= 42.43 g of CO2.

Amount of water = 324.3 * 13.759) / 228.29

= 19.55 g of H2O.

An empty party balloon will float to the ceiling of a room once it is filled with helium.A. What does this tell you about the density of air in the room compared to the density of helium?

B. For the balloon to float in air, what two factors might have changed about the balloon?

Answer those two questions of you know the answer.

Answers

Helium is a gas composed of itself, were air is composed of Oxygen and Nitrogen making the air more dense than the helium making it float to find other gases

Two factors to change are Air pressure (due to the balloon moving ) and the helium making the balloon rise.

That's about all I can explain...hope this helps >.<

A 3.90L sample of gas at STP is cooled to -55oC at 808mmHg. What is the new volume?