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
elixir [45]
2 years ago
8

You can slow down the rate of a reaction by ____.

Chemistry
1 answer:
Volgvan2 years ago
7 0

Answer:

d. adding an inhibitor

c. fish that emit light

c. released

Explanation:

An inhibitor is a negative catalyst. It is usually a substance that slows down the rate of chemical reaction.

Chemical inhibitors acts in way that makes reactions drags over time.

Increasing temperature, increasing concentration and decreasing particle size all will increase the rate of chemical reaction. They make reactions proceed more faster.

When a fish emits light, it is not an exothermic reaction.

An exothermic reaction is one in which heat is released to the environment. In such reactions, heat is liberated to the surroundings. At the end of the reaction, the surrounding will have a higher temperature compared to the reaction.

We assign exothermic reactions a negative value because the sum of heat contents of products is less than that of reactants.

You might be interested in
What is density? A) mass divided by volume B) volume divided by mass
wolverine [178]

Answer:

A) mass divided by volume

Explanation:

7 0
3 years ago
Read 2 more answers
A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen
Kay [80]
Answer is: pressure of oxygen is 31,3 kPa.
The total pressure<span> of an ideal gas mixture is the sum of the </span>partial pressures<span> of the gases in the mixture.
p(mixture) = p(helium) + p(oxygen) + p(carbon dioxide).
p(oxygen) = p(mixture) - (p(helium) + p(carbon dioxide)).
p(oxygen) = 101,4 kPa - (68,7 kPa + 1,4 kPa).
p(oxygen) = 101,4 kPa - 70,1 kPa.
p(oxygen) = 31,3 kPa.

</span>
3 0
3 years ago
How much thermal energy does a cup of coffee have
Fantom [35]

Answer:

a lot that's why it's really hot

6 0
2 years ago
Read 2 more answers
30 POINTS! ----- How many moles of oxygen gas are needed to completely react with 145 grams of aluminum? Report your answer with
gladu [14]
First a balanced reaction equation must be established:
4Al _{(s)}    +   3 O_{2}  _{(g)}     →    2 Al_{2} O_{3}

Now if mass of aluminum = 145 g
the moles of aluminum = (MASS) ÷ (MOLAR MASS) = 145 g ÷ 30 g/mol
                                                                                    =  4.83 mols

Now the mole ratio of Al : O₂ based on the equation is  4 : 3  
                                                                [4Al  + 3 O₂ → 2 Al₂O₃]

∴ if moles of Al = 4.83 moles
  then moles of O₂ = (4.83 mol ÷ 4) × 3
                              =  3.63 mol   (to  2 sig. fig.) 

Thus it can be concluded that 3.63 moles of oxygen is needed to react completely with 145 g of aluminum. 


     
4 0
3 years ago
_H2 SiCl2 + _H2O −−→ _H8 Si4O4 + _HCl
Serjik [45]

Answer:

A

Explanation:

pls mark brainliest right

6 0
3 years ago
Other questions:
  • Calculate the approximate enthalpy of the reaction in joules. Estimate that 1.0 mL of vinegar has the same thermal mass as 1.0 m
    11·1 answer
  • The equation for density, d, is
    9·1 answer
  • How many moles are in 17.2g k2s
    14·1 answer
  • HURRY PLEASE HELP!!
    9·1 answer
  • Which metal does not form cations of differing charges?
    15·1 answer
  • Limiting Reactant:
    7·1 answer
  • HELP PLEASE || TEN PTS WILL MARK BRAINLEST ||Reaction B could produce a substance with a pH of...
    6·1 answer
  • Density and Years: What do you know?Objectives: determine and compare density of pennies to assess composition. Procedure:1. Rea
    8·1 answer
  • Mối liên hệ giữa chuyển hóa protein và lipid ?
    7·1 answer
  • How many protons are in the nucleus of a lithium atom in its excited state
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!