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
Rasek [7]
3 years ago
9

I need help !!!!!!!!!!! Plz

Chemistry
1 answer:
pishuonlain [190]3 years ago
5 0

Answer: 1: B. It will speed up the reaction.

2: A. Increase the concentration of a reactant.

3: A. They act as catalysts.

4: C. A catalyst decreases the activation energy needed for a reaction.

5: D. collision theory.

Explanation: I just took the quiz:)

You might be interested in
25 POINTS! Which traits are characteristic of both single-celled and multicellular organisms? Choose all answers that are correc
worty [1.4K]
The answer is d. The answer is that because both of them can reproduce that way.
3 0
3 years ago
Read 2 more answers
Which particle diagram represents a mixture of three substances
Anni [7]

Following the key in the diagram (see the attached image), the only particle diagram that represents a mixture of three substances is diagram 2.

To simplify it, let us replace the key in the diagram as follows;

  1. atom of one element = A
  2. atom of different element = B

Diagram 1 consists of only AA and AB

Diagram 2 consists of AA, BB, and AB.

Diagram 3 consists of AA and ABA

Diagram 4 consists of AA and BAB

Thus, only diagram 2 has a mixture of 3 substances.

More on mixtures can be found here: brainly.com/question/6594631

4 0
2 years ago
What is the product of reduction of ethyl 4-oxobutanoate with sodium borohydride in ethanol at room temperature for 30 minutes?
zheka24 [161]

The product of reduction of ethyl 4-oxobutanoate with sodium borohydride in ethanol at room temperature for 30 minutes is ethyl 4- hydroxybutanoate .

Sodium borohydride is a relatively selective reducing agent  Ethanolic solutions of Sodium borohydride reduces aldehyde , and ketone , in the presence of acid chloride , ester , epoxide , lactones , acids , nitriles , nitro groups.

The sodium borohydride does not reduce ester group because sodium borohydride is not strong enough and the electrophilicity at carbony carbon of ester is not more as compare toaldehyde , and ketone

The product of reduction of ethyl 4-oxobutanoate with sodium borohydride in ethanol at room temperature for 30 minutes is ethyl 4- hydroxybutanoate .

to learn more about sodium borohydride and ethanol click here ,

brainly.com/question/12955502

#SPJ4

4 0
1 year ago
What going on in each spot
KATRIN_1 [288]

nothing ksbsshshhzvsjajbsjshjsgdvdjhsbsj

3 0
3 years ago
Read 2 more answers
What would be the volume in millilitres of a blood sample of 2.15 microliters (ul)?​
Zanzabum

2.15 x 10⁻³mL

Explanation:

Given parameter:

    Volume of blood sample in uL = 2.15uL

Conversion           uL → mL

   micro- and milli-  are both prefixes of sub-units.

liter is a unit of volume of a substance.

       micro - is 10⁻⁶

       milli- is of the order 10⁻³

The problem is converting from micro to milli:

     if we multiply  10⁻⁶ by 10³ we would have our milli;

  1000uL = 1mL

  2.15uL :   2.15uL x \frac{1mL}{1000uL} = 2.15 x 10⁻³mL

learn more:

Volume brainly.com/question/5055270

#learnwithBrainly

4 0
3 years ago
Other questions:
  • What are the reactants of cellular respiration? Check all that apply
    9·2 answers
  • What would happen if your experimental value of water was too low or too high?
    7·1 answer
  • Convert a volume of 3.5 m3 to cubic centimeters.
    15·1 answer
  • What does burning bread in a toaster demonstrate? (a) Energy can create a change. (b) Energy can cause motion. (c) A toaster cre
    12·1 answer
  • 1. How would you describe a wave to someone<br> who has never seen one before?
    10·1 answer
  • Who can help me with this? I will give brainliest lmk!
    5·1 answer
  • What is te name of P2CL7
    14·1 answer
  • A gold block with a mass of 325 g was heated from 22°C to 87°C. How much heat
    15·1 answer
  • Write the chemical name for P3F4?<br> Correct spelling counts!
    12·1 answer
  • A bowl containing 150 grams of water, is heated from 25 °C to 100 °C.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!