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Kamila [148]
3 years ago
15

compare the physical and chemical properties of a compound to those of the elements of which it is composed.

Biology
1 answer:
Inessa05 [86]3 years ago
7 0

Answer:

Compound: These are made of the various type of same or different elements. These elements show a specific ratio in a particular compound.

The physical properties are traits of a particular compound or element that can be observed physically like the state of matter, color, odor, and other. The chemical properties and physical properties of compounds and elements they formed are different.

It is not comparable as the elements have no or very little individual value in a compound. For instance, water made of hydrogen and oxygen, where water is liquid and constituents are gas.

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Which of the following describes the difference between nitrogen-14 and nitrogen-15? ( point)
AveGali [126]

Answer:

D. Nitrogen-14 has 7 electrons, 7 protons, 7 neutrons nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons

Explanation:

In an atom, number of electrons is equal to the number of protons.  And the number of neutrons is equal to the difference between the mass number of the atom and the atomic number. For Nitrogen 14, electron is 7, proton is also 7 as number  of electrons and number of protons are equal. So, the neutron will be 14-7= 7. For Nitrogen 15, electron number is 7 so proton number will be also 7. Neutron number for nitrogen 15 will be 15-7= 8. That's why the answer is option number 4.

8 0
3 years ago
Which of the other minerals on the scale can diamond scratch?
Olin [163]
<span><span>1 Corundum
</span><span>2 Topaz
</span><span>3 Quartz
4 </span><span>Orthoclase
</span><span>5 Apatite
6 </span><span>Fluorite
7 </span><span>Calcite
8 </span><span>Gypsum
</span><span>9 Talc
Are all answers to what diamond on a scale of minerals can scratch.

</span></span>
3 0
3 years ago
2. A fruit fly is classified as a consumer rather than as a producer because it is unable to 1. reproduce asexually 2. synthesiz
Kisachek [45]

Answer:

2. synthesize its own food

Explanation:

Based on how they obtain their nutrition, living organisms has been classified to be either producers, consumers, or decomposers. Producers are organisms capable of synthesizing their own food using light (photosynthesis) or inorganic chemicals (chemosynthesis).

Consumers, on the other hand, cannot synthesize their own food and hence, rely on other organisms to obtain their energy source. Consumers feed on other organisms to obtain energy. In this question, a fruit fly is classified as a CONSUMER because it cannot synthesize its own food.

7 0
2 years ago
Read 2 more answers
An inbred strain of plants has a mean height of 74cm. A second strain of the same species from a different geographical region a
DochEvi [55]

Answer:

Explanation: see attachment

7 0
2 years ago
You want to cultivate some exotic plants at your farm. However, the climate is chillier than the temperature range favorable to
myrzilka [38]

The correct answer is - D. use a greenhouse.

If the climate is not suitable for a certain exotic plant, and the reason for that is that it is colder than the place from where the plant originates, than the best solution is to plant it in a greenhouse.

The greenhouse will provide higher temperature for the plant throughout the whole year, so it is will have a proper temperature, similar to the one it is adapted to. Also, it will receive sufficient amounts of light. It will be protected from the outside influences such as the cold winds, snow, low temperatures, so it will have a good chance of growing.

5 0
3 years ago
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