b. That the components of the mixture cannot be separated.
c. That you can see the different component parts of the mixture.
d. That heterogeneous mixtures combine solids and liquids.
Answer: C. That you can see the different component parts of the mixture.
Explanation: Heterogeneous mixtures does not have a uniform apperance so the individual components of the mixture seen visually and can be separated by physical means.
The elements of a heterogeneous mixture can be distinguished visually. It means that you can see the different component parts of the mixture.
So, the correct answer is c. That you can see the different component parts of the mixture.
When a mixture is described as "heterogeneous," it means that its components are not evenly distributed, and they can be visually distinguished from each other. This is because the components exist in separate phases or regions within the mixture, and they may have different physical properties, such as color, density, size, or state of matter (solid, liquid, gas).
In a heterogeneous mixture, you can physically see or identify the different component parts without the need for specialized equipment or chemical analysis. Common examples include a salad with various ingredients, a bowl of cereal with milk, or a jar of mixed nuts.
The other options are not accurate descriptions of a heterogeneous mixture:
a. Heterogeneous mixtures can consist of more than two components, and they don't necessarily involve separate elements mixed together.
b. Heterogeneous mixtures can often be separated by physical means (e.g., filtration or hand-picking), which distinguishes them from homogeneous mixtures.
d. Heterogeneous mixtures can involve a combination of solids, liquids, or gases, but they are not limited to this combination.
Thus, the correct answer is c. That you can see the different component parts of the mixture.
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D. A liquid becoming gas
Answer:
(got a 100%, 4/4 points)
I personally think Thompson was most important. He discovered the electron and improved hugely on the atomic model with a positively charged sphere with negative electrons dispersed throughout, and the atom with a neutral charge.
I think that without him, Rutherford wouldn't have done his gold foil experiment. Since Rutherford discovered the nucleus is positive, Bhor was able to find electrons have energy levels and that wouldn't have happened without Rutherford, who happened because of Thompson.
Which compounds are the reactants and which are the products?
A.
reactants: H2SO4 + 2NaOH
products: 2H2O + Na2SO4
B.
reactants: 2NaOH + Na2SO4
products: H2SO4 + 2H2O
C.
reactants: 2H2O + Na2SO4
products: H2SO4 + 2NaOH
D.
reactants: H2SO4 + 2H2O
products: 2NaOH + Na2SO4
Answer:
A. Reactants: H2SO4 + 2NaOH
products: 2H2O + Na2SO4
Explanation:
Answer:
Water is a renewable resource because it evaporates out of the oceans to clouds, which generate rain falling on the land. The water then runs into rivers and dams where it is used and the waste is partially cleaned before it makes its route to the sea, where the cycle begins again.
Sample Response: Sunlight is always available in nature for us to use and it cannot be used up.