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
weeeeeb [17]
3 years ago
5

Urgent help will be much appreciated

Chemistry
1 answer:
Scorpion4ik [409]3 years ago
6 0

Answer:

b c d a

Explanation:

hgsautaahhttdioirtrf

You might be interested in
How does a screw make the work of fastening two objects together easier? A. The screw changes the direction of a force - it conv
Pachacha [2.7K]
<span>D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.</span>
3 0
3 years ago
Read 2 more answers
What are the charges and relative masses of the 3 main subatomic particles
blondinia [14]
Proton: positive- mass equal to neutron
Electron: negative- mass 1/1840 mass of proton 
Neutron: no charge- same mass as proton
5 0
3 years ago
What is the ph of a 0.001 62 m naoh solution?
marin [14]
The answer 
first of all, we should know that NaOH is a strong base. For such a product, the conentration of the OH -  is equivalent to the concentration of the NaOH itself.
that means:
[ OH -] = [ NaOH] =<span>0.001 62 
and for a strong basis, pH can be calculated as pH = 14 + log </span>[ OH -] 
first we compute log [ OH -] :
log [ OH -] = log (0.001 62)= -2.79

finally pH = 14 -2.79 = 11.20
4 0
3 years ago
How to separate water from aqueous magnesium sulphate?​
Kitty [74]

Answer:

The method generally involves heating a mixture of epsomite and halite to form clusters of lower hydrated magnesium sulfate crystals and subsequently applying slight pressure to the clusters so that they collapse to yield fine, less hydrated magnesium sulfate crystals which can then be easily separated from the ...

3 0
3 years ago
When considering free energy change, biochemists usually define a standard state, the biochemical standard state, which is modif
kodGreya [7K]

Answer:

The conditions for biochemical, chemical and both standard states are shown below

Explanation:

Chemical standard state:

Temperature is 25°

Intial concntration of reactants and products is 1M

g. Presurre is 1 atm.

PH7

Biochemical standard state:

Temperature is 25°

PH7

Constant value of Mg2+

Both:

Intial concntration of reactants and products is 1M

g. Presurre is 1 atm.

Temperature is 25°

PH7

7 0
3 years ago
Other questions:
  • Water filter project: using different types of filters to filter water, trying to figure out if the changes to the water would b
    7·1 answer
  • Alpine Marmots are a type of rodent that have the ability to decrease their body activity to conserve food. These marmots most l
    12·1 answer
  • We can change a gas to liquid by the temperature and the pressure. NextReset
    14·2 answers
  • Is fluorine a element, compound or mixture
    12·2 answers
  • How would you find the volume of your teacher
    12·1 answer
  • The amount of inertia an object has depends on its speed true or false
    14·1 answer
  • What are the 3 primary states of matter?
    12·2 answers
  • An unknown compound is processed using elemental analysis and found to contain 117.4g of platinum 28.91 carbon and 33.71g nitrog
    14·1 answer
  • 1. Which answer best describes this reaction?
    9·1 answer
  • As a student , what can you do to help in preventing pollution in your community ?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!