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Masteriza [31]
3 years ago
13

Please helppppppp meee, please don't guess either

Chemistry
1 answer:
stellarik [79]3 years ago
7 0
It should be Quaternary (D)
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I need help (question 2)
Anna [14]

Answer:

Your answer is the first one about mountain ranges

Explanation:

When the earth split and pushed together, many mountain ranges were created

7 0
3 years ago
Which characteristic is true of sexual reproduction but not of asexual reproduction?
Viktor [21]

Answer:

Sexual Reproduction involves two different parties

Explanation:

Asexual is the opposite, so it uses no one else to reproduce

4 0
3 years ago
Read 2 more answers
Using the valence bond method, explain the structure of isocyanic acid in terms of the atomic bond method.
Gala2k [10]

The structure of isocynide is

N=C

What is the importance of VSEPR theory?

Valence bond theory describes the electronic structure of molecule .The theory says that electrons fills the atomic orbitals of an atom within a molecule .

In the structure of isocynide there are triple bonds between Nitrogen and carbon . The bond length is 115.8pm and the bond angle is 180°. There is two pi and one sigma bond .

to learn more about VSEPR theory click here brainly.com/question/23129240

#SPJ9



4 0
2 years ago
Read 2 more answers
To test the quality of water sources in her area, Shameka collects five samples from each water source and tests the quality of
Blizzard [7]

Answer:

The answer is "Verification of results ".

Explanation:

The scientific system consisted inside an iterative or cyclical process which experimental results and technically confirm a theory. There are four things which scientific design aims people explain:  

  • Subject of investigation characterization.  
  • Hypothesis from its consequences of its characterization.  
  • Forecasts.  
  • Experimentation which show the precision and consistency of the hypothesis.  

Its first stage of analysis involves collecting the samples taken for the current context, that are the focus of discussion, and then testing the samples taken to determine the absorbance of soft and hard salts throughout the water. It is required for water quality to be determined. Therefore, the collection and testing of samples falls under the scientific design category of classification, whereby Shamekha tried to verify the findings.

4 0
3 years ago
2. Write the charge of each sub-atomic particle in the helium atom above.
algol [13]

Explanation:

The charge of a helium atom is zero

It is neutral because

The number of unit negative charges = number of unit positive charges

One unit negative charge = -1.6 x 10^(-19) which is basically the charge of an electron

One unit positive charge = +1.6 x 10^(-19) which is basically the charge of a proton

A helium atom has 2 protons and 2 electrons, so it is neutral

NOTE: an alpha-particle (He2+) is a charged helium atom it has 2 protons and 0 electrons. Charge of an alpha particle = +3.2 x 10^(-19).

7 0
3 years ago
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