1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
eimsori [14]
3 years ago
15

I need help on 2 questions! 19points! about charles darwin

Chemistry
1 answer:
Elena-2011 [213]3 years ago
8 0

Answer: Yes he is successfull because he has released many books.

Explanation:

You might be interested in
When a hot piece of iron is placed in cool water,
Papessa [141]
A i believe is the answer
8 0
3 years ago
Compare and contrast the compositions of binary ionic and binary molecular compounds
ICE Princess25 [194]
<span>Both are composed of two elements (that means binary).
Ionic is composed of two ions, metallic cation-positive ions, and nonmetallic anion - negative ions. For example NaCl (sodium-chloride).
Molecular compounds are composed of two nonmetallic elements. For example HCl (hydrochloric acid).</span>
7 0
4 years ago
Propose a structure for an aromatic hydrocarbon, C9H12, that can form two C9H11Cl products on substitution of a hydrogen on the
Crank

Answer:

Explanation:

From the given study,

the molecular formula of the given aromatic compound = C9H12

the first process we suppose to carry out is to calculate the double bond equivalence.

So, the double bond equivalence DBE = {N_C+1-(\dfrac{(N_H+N_{Cl})-N_H}{2})  }

DBE = {9+1-(\dfrac{(12+0)-0}{2})  }

DBE = 4

Hence, the aromatic compound possesses 4 double bonds, this signifies that the might be a presence of benzene ring.

The substitutional products of the aromatic hydrocarbon C9H12 can be seen in the attached file below.

3 0
3 years ago
A certain first-row transition metal ion forms many different colored solutions. When four coordination compounds of this metal,
RideAnS [48]

Answer:

See explanation

Explanation:

From the analysis we have in the question, we must look towards a first row transition metal ion having a d^6 configuration because it yields a paramagnetic complex having four unpaired electrons and a diamagnetic complex having no unpaired electrons.

We have two possible candidates in mind, Fe^2+ and Co^3+. However, Fe^2+  does not form as many coloured complexes as stated in the question so we have to eliminate that option.

We are now left with only Co^3+. Various ligands are going to cause these various colours of Co^3+ to appear in solution.

Hence, we can deduce from all these that the nature of ligands determines the colour of the complex . Don't forget that the colour of a complex arises from crystal field splitting.

4 0
3 years ago
Which interaction is responsible for the force of attraction between the particles in a salt crystal?
Cloud [144]
What context are you asking it in?

The answer could be the electromagnetic interaction if you're talking about the 4 fundamental interactions, or ionic interaction, or electrostatic interaction.
5 0
4 years ago
Read 2 more answers
Other questions:
  • An aerosol can of compressed air has the following warning label: “WARNING: Contents under pressure. Do not expose can to heat o
    10·2 answers
  • What is the overall reaction for lactic acid fermentation?
    6·1 answer
  • To study for a test, Ally created this table summarizing the characteristics of the six kingdoms: What should Ally put in X and
    6·2 answers
  • To fulfill the octet rule, electron sharing leads to how many electrons around each atom? 4 5 7 8
    12·2 answers
  • Which substance can not be decomposed by a chemical change?
    14·2 answers
  • What product of Al makes it suiyable to be used in electric cables
    13·1 answer
  • A student made the table shown to list some contact and non-contact forces.
    7·2 answers
  • What is the molar mass of sodium oxide (Na20)?
    14·1 answer
  • How is the chemical bonding within a crystal of gold (Au) different from the
    13·1 answer
  • In the reaction _Al 3O2→2Al2O3, what coefficient should be placed in front of the Al to balance the reaction? 1 2 3 4.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!