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
erastova [34]
3 years ago
8

Why is heat needed to get a reaction to occur

Chemistry
2 answers:
olga2289 [7]3 years ago
8 0

Answer:

Endothermic and Exothermic Reactions

Many familiar chemical reactions, such as the burning of coal, rusting and exploding gunpowder, give off heat; chemists call these reactions exothermic. Because reactions liberate heat, they increase the ambient temperature.

Ahat [919]3 years ago
4 0

Answer:As temperature increases, reactions take place. Generally, higher temperatures mean faster reaction rates; as molecules move about more quickly, reactant molecules are more likely to interact, forming products.

Explanation:

You might be interested in
Compare and contrast diffusion and osmosis. Include at least one similarity and one difference between the two processes.
Softa [21]
Osmosis is the diffusion of water <span>across a semipermeable membrane (usually cell membrane) from a region of low solute concentration to a more concentrated solution so it can reach equilibrium (balance). 

D</span>iffusion is <span>a spontaneous movement of particles from an area of high concentration to an area of low concentration.

Both results in particles moving and help balance out the concentrations.
Also, in osmosis, the water molecules are moving. In diffusion, it is the solutes moving.

I hope this helps and explains well.</span>
4 0
3 years ago
What makes a question testable? Can someone help me on this pls it has to be either a 4-5 sentence! this is a science question.
Alexxandr [17]

Answer:

testable questions are answer through observation or an experiment that provides evidence that the questions connects to the scientific concepts rather the opinion feelings

therefore the question can be tested through observation or experiment

7 0
3 years ago
Ill mark u brainlest if u answer me wit no links!
rodikova [14]

Answer: I believe it would be using group input to discuss and prepare preliminary designs

Explanation:

7 0
3 years ago
Every Sunday, Sarah prepares blue fruit punch to
MrRissso [65]

Answer:

Fruit punch with a very dark blue color

Explanation:

8 0
3 years ago
Read 2 more answers
Describe what happens when a bond is created between magnesium and bromine. Be specific and explain in terms of electrons.
Allushta [10]

Answer: Magnesium and Bromine/MgBr2 = Ionic compounds

Explanation: When atoms form together they can form between Ionic Compounds and molecules; this could depend on if they're joined by Covalent bonds as well because when atoms form with Covalent bonds, it forms Molecules.

5 0
3 years ago
Other questions:
  • 1.name the gas produced by the reaction between calcium carbonate and dilute hydrochloric acid?
    12·1 answer
  • What is the location on the surface direction above the earthquake focus called
    5·1 answer
  • SOS EASY MATH PLZ HELP
    6·1 answer
  • Which of these is NOT a function of the digestive system?
    13·1 answer
  • Draw the structure of the aromatic compound para-aminochlorobenzene (para-chloroaniline). Draw the molecule on the canvas by cho
    5·1 answer
  • In most elements, the valence shell holds a maximum of how many electrons? A. 2 B. 4 C. 6 D. 8
    5·1 answer
  • In which place would you find the most organisms
    6·2 answers
  • Calculate the number of moles in 180 grams of Magnesium Chloride
    10·1 answer
  • The equation below represents the chemical reaction between the elements hydrogen and oxygen when the compound water is formed.
    11·1 answer
  • Which condition will decrease the rate of reaction between excess magnesium and hydrochloric acid?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!