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
Nataly [62]
3 years ago
6

I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST

Chemistry
1 answer:
snow_tiger [21]3 years ago
5 0

Answer:

I think it's B

Explanation:

I might be wrong, but please tell me.

You might be interested in
A weak base. B. has a K. of 4.46 x 10-10 A solution with an unknown initial concentration is tested, and found to have a pH of 8
Ann [662]

Answer:

0.013MB

Explanation:

6 0
3 years ago
The half life for the first order conversion of A to B is 56.6 hours. How long does it take for the concentration of A to decrea
sveta [45]

Answer:

It will take 188.06 hours for the concentration of A to decrease 10.0% of its original concentration.

Explanation:

A → B

Initial concentration of the reactant = x

Final concentration of reactant = 10% of x = 0.1 x

Time taken by the sample, t = ?

Formula used :

A=A_o\times e^{-\lambda t}\\\\\lambda =\frac{0.693}{t_{\frac{1}{2}}}

where,

A_o = initial concentration of reactant

A = concentration of reactant left after the time, (t)

t_{\frac{1}{2}} = half life of the first order conversion  = 56.6 hour

\lambda = rate constant

A=A_o\times e^{-(\frac{0.693}{t_{1/2}})\times t}

Now put all the given values in this formula, we get

0.1x=x\times e^{-(\frac{0.693}{56.6 hour})\times t}

t = 188.06 hour

It will take 188.06 hours for the concentration of A to decrease 10.0% of its original concentration.

4 0
3 years ago
Phosphorus will ____ electrons to complete its octet changing into an ____
Paraphin [41]
Steal; Anion
This is the answer because phosphorous is very electronegative.
3 0
3 years ago
Chemistry what is stoichiometry and the different formulas
USPshnik [31]
Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers. Hoped this helped!!!!. Also if you are trying to look for the formulas it should be online just type in stoichometry formulas.
8 0
3 years ago
The ionization of pure water forms _____.
Evgesh-ka [11]

Answer: The ionization of pure water forms <u><em>hydroxide and hydronium ions.</em></u>

Explanation:

Ionization is a reaction in the pure water in which water breaks down into its constituting ions that hydronium ion and hydroxide ions.

H_2O+H_2O\rightleftharpoons H_3O^++OH^-

One molecule of water looses its proton to form hydroxide ion and l=the lost protons get associated with another water molecule to form hydronium ion.

4 0
3 years ago
Other questions:
  • How could using either more or less of a chemical in a scientific experiment cause a change in results?
    13·1 answer
  • How would decreasing the volume of the reaction vessel affect each of the following equilibria? 2NOBr(g) --&gt; 2NO(g)+Br2(g)
    5·1 answer
  • What is another name for the acid dissociation constant? rate constant mole fraction equilibrium constant ionization constan?
    6·2 answers
  • What would be a good claim for baking soda
    14·1 answer
  • What are the raw materials/reactants and products of photosynthesis
    6·1 answer
  • Difference between intermediate and activated complex​
    12·1 answer
  • A 4.215 g sample of a compound containing only carbon, hydrogen, and oxygen is burned in an excess of oxygen gas, producing 9.58
    7·1 answer
  • The titration of HCl with NaOH is an example of:
    10·1 answer
  • What causes severe weather to occur?
    12·1 answer
  • If 38 gr of water are produced in reaction, how many mole are CO2 are produced.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!