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oksano4ka [1.4K]
3 years ago
7

What is a niche of a greenfly?

Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

Explanation:

Different butterfly species occupy slightly different niches, but most are forest- or field-dwelling, flying, nectar-feeding insects. ... During feeding, butterflies are often covered in pollen, making them effective agents of pollination for plants.

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What is amu of 99 % H-1, .2% H-1 and .8% H-3
ankoles [38]

The average atomic mass of your mixture is 1.03 u .

The average atomic mass of H is the weighted average of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its % abundance).  

Thus,  

0.99    × 1.01 u = 0.998 u

0.002 × 2.01 u = 0.004 u

0.008 × 3.02 u = <u>0.024 u</u>

            TOTAL =  1.03   u

4 0
3 years ago
If two carbon atoms are bonded by a double covalent bond, how many additional bonds can each carbon atom form?
Umnica [9.8K]

Answer:

2

Explanation:

Carbon Is tetravalent. This means that at any particular point in time, the number of bonds carbon can form at a particular time is 4. Now in this particular question, there is already a double bond between the two carbon atoms. This means that each of the carbon atom has the chance to fulfill it tetra valency by attaching just two bonds to itself.

Hence, to complete the property of its tetra valency, two more bonds needed to be added to the two carbon atoms

6 0
3 years ago
What is formed when atoms of two or more elements bond in a chemical reaction? A.Mixture B.Elements C.Atoms D.Compound
saw5 [17]

Answer:D. Compound.

Explanation:

A compound is defined as a pure substance: formed when two or more elements chemically combine to form bonds between their atoms.

8 0
3 years ago
Light energy comes from
Varvara68 [4.7K]

Answer:

the answer of the questionis D Photons

4 0
3 years ago
Why do we have to balance chemical equations
Lunna [17]

Answer:

  • <em>Chemical equations are balanced </em><u>to comply with the law of conservation of mass.</u>

Explanation:

Law of conservation of mass states that matter cannot be either created or destroyed.

A skeleton chemical equation shows the reactants and products of a chemical reaction without taking into account the real proportion in which the reactants combine and the products are obtained.

An example of a skeleton reaction is the combustion of methane:

  •    CH₄ + O₂ → CO₂ + H₂O

Such as that equation is shown, there are four atoms of hydrogen in the reactants but only 2 atoms of hydrogen in the products. Also, there are 2 atoms of oxygen in the reactants but three atoms of oxygen in the products. This seems to show that some atoms of hydrogen have been destroyed and some atoms of oxygen have been created. This is impossible as it is against the law of conservation of matter.

Then, to show a real situation, the chemical equation of combustion must be balanced, adjusting the coefficients. This is the balanced chemical equation:

  •    CH₄ + 2O₂ → CO₂ + 2H₂O

Now you see that the number of atoms of each matter is conserved: the number of carbon atoms in each side is 1, the number of atoms of hydrogen in each side is 4, and the number of atoms of oxygen in each side is 4. Thus, by balancing the chemical equation, the law of conservation of mass is not violated.

7 0
3 years ago
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