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
Elanso [62]
3 years ago
13

Which event must always occur for a chemical reaction to take place?(1) formation of a precipitate(2) formation of a gas(3) effe

ctive collisions between reacting particles(4) addition of a catalyst to the reaction system
Chemistry
2 answers:
avanturin [10]3 years ago
8 0
(3) effective collisions between reacting particles is your answer. Without these collisions, the reacting particles cannot trade particles or react with each other to create a chemical reaction.
Oliga [24]3 years ago
5 0
3 - Effective collisions between reacting particles

For a chemical reaction to occur, reacting particles must collide - however, not all collisions result in a reaction. They must have enough energy in the collision to react (that is, be above the activation energy). The rate of reaction is determined by the rate of successful collisions, that is to say, the more successful collisions there are in a unit time, the faster the reaction rate.
You might be interested in
Which gas has the highest diffusing rate between nitrogen , oxygen , hydrogen and chlorine
Vilka [71]

Answer:

hydrogen

Explanation:

The gas with the least molecular weight effuses the fastest (Graham's Law). Hence, H gas has a higher rate of diffusion compared to N, O, and Cl.

So, Cl is the slowest when it comes to the rate of diffusion, because it has the highest molecular weight.

7 0
2 years ago
Plsplsplsplsplsplsplsplsplspls help
MA_775_DIABLO [31]

Answer:

this is difficult but simple to answer

Explanation:

all atoms move in 1 direction no more than 2

6 0
3 years ago
But-1-ene can be prepared from butan-1-ol. which type of reaction takes place?
slega [8]

Answer:

              Dehydration Reaction

Explanation:

                  Alcohols can be converted into Alkenes using catalytic amounts of acids as a catalysts.

                 The water molecule is removed hence, it is called as dehydration reaction.

                  The reaction is attached.

8 0
2 years ago
How do i explain this step by step?
nignag [31]

Answer: hydrogen cleaves from HCl by donating it's only electron to form a radical and chloride ion. Ammonia share it's lone pair of electron with hydrogen to form ammonium ion

Explanation:

4 0
3 years ago
250 ml glass of lemon juice contains 20 grams of sugar. How much sugar is in 500 ml bottle
iren2701 [21]

There is 40 g of sugar in a 500 ml bottle of lemon juice

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

the concentration of sugar in lemon juice :

\tt \dfrac{20~g}{250~ml}=0.08~g/ml

So for 500 ml juice :

\tt 500\times 0.08=40~g~sugar

5 0
3 years ago
Other questions:
  • List the types of intermolecular forces that exist between molecules (or basic units) in each of the following species: (a) benz
    15·2 answers
  • what would be the effect on the properties of the water molecule if oxygen and hydrogen had equal electronegativity?
    15·1 answer
  • A sample of gas has an initial volume of 3.88 l at a pressure of 707 mmhg . part a if the volume of the gas is increased to 5.43
    10·1 answer
  • Type one to two paragraphs describing the changes in potential and kinetic energy of the cart.
    6·2 answers
  • How many moles are there in 40g of calcium
    10·1 answer
  • How to identify sodium hydroxide,hydrochloric acid,ans=d sugar solution when we only have blue litmus paper
    6·1 answer
  • ‼️ i really need help. if anyone can do 10 pages of a grade 11 chemistry packet (multiple choice) let me know. i can pay money
    6·1 answer
  • Which transformation represents light energy transforming into chemical energy?
    15·1 answer
  • Consider the procedures in a simple experiment used to demonstrate the behavior of gases
    6·1 answer
  • How much energy would it take to heat a section of the copper tubing that weighs about 665.0 g, from 15.71 ∘C to 27.09 ∘C ? Copp
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!