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dybincka [34]
3 years ago
9

As defined by Aristotle, which one of the following is an element?

Chemistry
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

4

Explanation:

none of them

they are compounds and mixtures

Ksenya-84 [330]3 years ago
8 0

Answer:

4. none of them

Explanation:

Water is a compound.

Air is a mixture.

Soil is a mixture.

None of them are elements.

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Which of the following is a consequence of humans using fossil fuels
marusya05 [52]

Answer:

Explanation:

Following are a few consequences of fossil fuels

1. It causes air pollution.

2. When they are burned, they produce toxic substances which leads to global warming.

3. Waste products are hazardous to public health and environment.

4. They are non - renewable and unsustainable.

5. Drilling fossil fuels is a dangerous process

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8 0
3 years ago
What happens to electrons in ionic bonds?
vlabodo [156]

Answer:

Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

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3 0
3 years ago
In the engineering design process what do engineers do immediately after testing a prototype
mote1985 [20]

Answer:

Iterate to improve the solution

Explanation:

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5 0
2 years ago
How many molecules are in 10.0 miles of C2H6O
shutvik [7]
6.02 x 10²⁴ molecules of C2H6O
3 0
3 years ago
Iron has a density of 7.87 g/cm3. What is the volume in cm3 of 3.729 g of iron?
KIM [24]

If iron has a density of 7.87g/cm³ and a mass of 3.729g, then the volume of iron is 0.474cm³

HOW TO CALCULATE VOLUME:

  • The volume of a substance can be calculated by dividing the mass by its density. That is;

Volume (mL) = mass (g) ÷ density (g/mL)

  • The density of iron is given as 7.87g/cm³ while its mass is 3.729g of iron. Hence, the volume can be calculated as follows:

Volume = 3.729 ÷ 7.87

Volume = 0.474cm³

Therefore, the volume of iron is 0.474cm³

Learn more: brainly.com/question/2040396?referrer=searchResults

6 0
1 year ago
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