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
Gnoma [55]
3 years ago
6

Which idea did linnaeus contribute to the theory of evolution

Chemistry
1 answer:
MissTica3 years ago
6 0

Answer:

Binomial Naming System

Explanation:

He was the first to use the system, he used it frequently enough for the system to be accepted and used more often by scientists. He believed that species were unable to be changed.

You might be interested in
What is the chemical equation
Serggg [28]

Chemical equation is the symbolic representation of chemical reactions.

Explanation

Chemical reactions are known as the reaction where two or more molecules or compounds react with each other leading to formation of product compounds along with either release or absorption of energy.

The symbolic representation of the processes occurring in a chemical reaction is termed as chemical equation.

The symbolic representation includes the reactants, products, external energy type and quantity of external energy and also about release of energy if occurs.

So the reactants are usually written in the left side of the chemical equation whereas on the right the products are written.

Both the sides are linked by a single headed arrow mark.

Some both the sides are linked by double heated arrow mark indicating the equilibrium chemical reaction.

5 0
3 years ago
What is the element above the element in Group 3, Period 4?
Dennis_Churaev [7]
Scandium? Is that what you mean?
5 0
3 years ago
20 mL of an approximately 10% aqueous solution of ethylamine, CH3CH2NH2, is titrated with 0.3000 M aqueous HCl. Which indicator
Eduardwww [97]

Answer:

Therefore, The indicator that is best fit for the given titration is Bromocresol Green Color change from pH between 4.0 to 5.6

Bromocresol green, color change from pH = 4.0 to  5.6

Explanation:

The equation for the reaction is :

C_2H_5NH_2_(_a_q_)     +     H^+_(_a_q_)   ---      C_2H_5NH_{3(aq)}^+

concentration of C_2H_5NH_{2(aq) = 10%

10 g of C_2H_5NH_{2(aq) in 100 ml solution

molar mass = 45.08 g/mol

number of moles = 10 / 45.08

= 0.222 mol

Molarity of C_2H_5NH_2(aq) = 0.222 \times \frac{1000}{100}mL

= 2.22 M

number of moles of C_2H_5NH_{2(aq) in 20 mL can be determined as:

= 20 mL \times  2.22 M= 44*10^{-3} mole

Concentration of C_2H_5NH_2(aq) = \frac{44*10^{-3}*1000}{20}

= 2.22 M

Similarly, The pKa Value of C_2H_5NH_{2(aq) is given as 10.75

pKb value will be: 14 - pKa

= 14 - 10.75

= 3.25

the pH value at equivalence point is,

pH= \frac{1}{2}pKa - \frac{1}{2}pKb-\frac{1}{2}log[C]

pH = \frac{14}{2}-\frac{3.25}{2}-\frac{1}{2}log [2.22]

pH = 5.21

Therefore, The indicator that is best fit for the given titration is Bromocresol Green Color change from pH between 4.0 to 5.6

8 0
3 years ago
What is the new pressure of gas?
Hunter-Best [27]
The pressure of a gas is the force that the gas exerts on the walls of its container. When you blow air into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. Pressure is a property which determines the direction in which mass flows.
4 0
3 years ago
Read 2 more answers
when using a clamp and ring stand to hold glassware and tools, what is the best position for the clamp?
lora16 [44]
The bottom







Explanation:
4 0
3 years ago
Other questions:
  • How many grams of water can be heated 20C by the addition of 1000J?
    7·1 answer
  • The atomic number ALWAYS equals the number of <br> protons<br> neutrons<br> electons
    13·1 answer
  • Ionic bonds •ionic bonds form between ______________ and _________________. •in naming simple ionic compounds, the ____________
    6·1 answer
  • What colour is the flame
    15·1 answer
  • What is the mole fraction of NaOH in an aqueous solution that contains 15% NaOH by mass?
    13·1 answer
  • PLEASE HELP
    13·1 answer
  • Another metal phosphate is cobalt phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net io
    5·2 answers
  • Elements in group 18 are very unreactive. They are said to be "inert". We call these the..
    7·1 answer
  • When a species cannot respond to environmental changes, members of that species begin to die. When the last member of a species
    7·1 answer
  • Calculate the density of sulfur dioxide gas (SO2) at 147°C and 29.9 kPa.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!