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
valentinak56 [21]
3 years ago
11

What did Dimitri meandered discover

Chemistry
1 answer:
Romashka [77]3 years ago
5 0
The Elements (The Periodic Table.)
You might be interested in
Which of these choices is a physical property that does not change when the size of the sample changes? mass,volume,density,comb
Shalnov [3]

Answer:

iweufweifiwbiepwbewibfpebfbiewfbwefwepbfwbefiwe

Explanation:

6 0
2 years ago
How many grams of butane were in 1. 000 atm of gas at room temperature?
dimaraw [331]

The mass in grams of butane at standard room temperature is 53.21 grams.

<h3>How can we determine the mass of an organic substance at room temperature?</h3>

The gram of an organic substance at room temperature can be determined by using the ideal gas equation which can be expressed as:

PV = nRT

  • Pressure = 1.00 atm
  • Volume = 22.4 L
  • Rate = 0.0821 atm*L/mol*K
  • Temperature = 25° C = 298 k

1 × 22.4 L = n × (0.0821 atm*L/mol*K×  298 K)

n = 22.4/24.4658 moles

n = 0.91556 moles

Recall that:

  • number of moles = mass(in grams)/molar mass

mass of butane = 0.91556 moles × 58.12 g/mole

mass of butane = 53.21 grams

Learn more about calculating the mass of an organic substance here:

brainly.com/question/14686462

#SPJ12

3 0
2 years ago
Sometimes described as a "chemical brother" of gaba (gamma-aminobutyric acid), which amino acid neurotransmitter acts in an exci
poizon [28]

excitatory amino acids are the amino acids helps in transformation of neurotransmitters or it helps in transmission of synapsis rapidly in brain of mammal. EAA known to be neurotransmitters for Central nervous system.

Excitatory amino acids count may vary from 50’s to 100’s. They are mostly composed of non-protein- amino acids obtained from algae or fungi.

The possible EAAs are Glutamate (Glu) and Aspartate which act as excitatory neurotransmitters in the brain. They get released from neurons where they induce excitation via metabotropic Glu receptors.  

Both glutamate and aspartate having excitatory effect on neurotransmission whereas Gama-amino butyric acid having inhibitory effect on neurotransmission.

Thus, the statement ‘neurotransmitters are chemical brother of gaba’ is indicating the complementary effect of each other.


4 0
3 years ago
There are seven types of crystals. Which of these is not one of the seven?
Gelneren [198K]
The answer is B. tetraclinic
3 0
2 years ago
Read 2 more answers
Lewis dot structure for N3-
labwork [276]

Answer :

The steps involved in the electron dot structure of N^{3-} are :

First we have to determine the total number of valence electron in N^{3-}.

Number of valence electrons in N = 5

The charge on N is (-3). So, we add 3 electrons.

Total number of valence electrons = 5 + 3 = 8 electrons

The image is shown below.

4 0
3 years ago
Read 2 more answers
Other questions:
  • 18) Why are the large oak trees so important for storks? Where are<br> they found?<br> 1
    8·1 answer
  • Which are examples of conserving? Choose the two correct answers.
    13·2 answers
  • List several other words that are formed using the prefix mon or mono what do these words have in common
    12·1 answer
  • Hot coffee in a mug cools over time and mug warms up. Which describes the energy In this system
    12·2 answers
  • What is the molar mass of Cro2
    8·2 answers
  • What is the coefficient in a chemical equation
    10·2 answers
  • What is the definition of thermal equilibrium
    7·2 answers
  • Which formula contains a metal and a nonmetal? SO2 MgO CO H2O
    15·2 answers
  • Matter will come in two different types. What are they called?
    5·2 answers
  • The table compares the frequency of some unknown electromagnetic waves,
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!