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
USPshnik [31]
3 years ago
8

Please HELP!!! I DESPERATELY NEED THESE TO BE CORRECT!

Chemistry
2 answers:
Butoxors [25]3 years ago
7 0

Answer:

A

Explanation:

kramer3 years ago
6 0

Answer:

i only know 6 whitch is the +ion

Explanation:

You might be interested in
Plz help me plz I am timed!!
PolarNik [594]

Answer:

full moon

Explanation:

....ur welcome..............

6 0
2 years ago
Read 2 more answers
Endothermic or exothermic- grass growing in a lawn.
DochEvi [55]

Answer:

endothermic

Explanation:

7 0
2 years ago
What happens to the volume of a gas in a closed container if the temperature increases, but the pressure remains the same? Why?
labwork [276]

Answer:

Volume will goes to increase.

Explanation:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

So when the temperature goes to increase the volume of gas also increase. Higher temperature increase the kinetic energy and molecules move randomly every where in given space so volume increase.

Now we will put the suppose values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 4.5 L × 348 K / 298 k

V₂ = 1566 L.K / 298 K

V₂ = 5.3 L

Hence prove that volume increase by increasing the temperature.

3 0
3 years ago
Cocaine selectively blocks na+ (sodium) channels, which is the mechanism that leads to
anzhelika [568]
Cocaine selectively blocks sodium channels which is the mechanism that leads to local anesthetic effects. 
Voltage gated sodium channels play very important roles in the body as they are responsible for action initiation and propagation in excitable cells, such as nerves, muscles and neuroendocrine cells. Like other sodium ion channels blockers such as lidocaine, Cocaine selectively blocks sodium ion channels which denies entry of sodium ions in the cell, thus leading to local anesthetic effects. 
5 0
3 years ago
2K2SO4 <--- how many atoms are there in this formula?
jekas [21]
There are 14 atoms, the 2 at the front times' everything by 2, so there 4Ks, 2Ss and 8Os, altogether 14
3 0
3 years ago
Other questions:
  • The heat change that accompanies the formation of 1.00 mol of carbon dioxide from its elements is −393.7 kJ/mol. What heat chang
    12·1 answer
  • Which of the following is true of atoms with very high electronegativity?
    5·1 answer
  • The formula for a compound of Li₊ ions and Br_ ions is written LiBr. Why can't it be written Li₂Br? Why isn't it written BrLi?
    12·2 answers
  • In most organisms, the star of translation is signaled by an AUG codon. What is the first amino acid in most proteins?
    5·2 answers
  • In an aqueous solution, 42% of a substance dissociates to release hydronium ions. Which of the following statements is true for
    11·1 answer
  • One of many cells in the retina of the eye that responds to low light. VOCABULARY
    11·2 answers
  • 34. What is the frequency of a light whose wavelength is 660 nm? ​
    5·1 answer
  • What weather does spikes or icicles bring?
    8·1 answer
  • The mass of 900. atoms of sodium(Na)
    11·1 answer
  • A. Element X has a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!