Double displacement – A double displacement reaction is also called a metathesis reaction. You can think of it as two compounds trading substances. Its equation is
AB + CD –> AD + CB
. Photosynthesis is an example of this kind of chemical reaction.
Is photosynthesis a replacement reaction?
Combustion reactions produce energy in the form of heat.
Single displacement
– A single displacement reaction is also called a substitute reaction. … Photosynthesis is an example of this kind of chemical reaction.
What type of reaction is photosynthesis?
Photosynthesis is
an endothermic reaction
. This means it cannot occur without energy (from the Sun). The light required is absorbed by a green pigment called chlorophyll in the leaves.
What type of reaction is double replacement?
Double replacement reactions have
two ionic compounds that are exchanging anions or cations
. Precipitation reactions and neutralization reactions are two common types of double replacement reactions.
Is photosynthesis a single or double replacement reaction?
Photosynthesis is a
single displacement reaction
.
Why is photosynthesis not considered an exergonic process?
Photosynthesis is termed an endergonic reaction
because it requires an input of energy in order to proceed
. … Without this energy, there would be no way for carbon dioxide, a small, simple molecule, to be converted to glucose, a considerably larger and more complex molecule.
What is called chemical reaction?
A chemical reaction is
a process in which one or more substances
, also called reactants, are converted to one or more different substances, known as products. … If a physical change occurs, the physical properties of a substance will change, but its chemical identity will remain the same.
What occurs in the chemical reaction of photosynthesis?
Photosynthesis is a series of chemical reactions that
convert carbon dioxide and water into glucose (sugar) and oxygen
in the presence of sunlight.
Can reaction rates be changed?
The rate of a reaction can change as
a result of changes in temperature, concentration, pressure and the presence of catalysts
. … Increasing the concentration or pressure of reactants in a solution increases the reaction rate, because more reacting particles are present in the same volume.
What are combination reactions?
A combination reaction is
a reaction in which two reactants combine to form one product
. Oxygen and the halogens are very reactive elements and are likely to undergo combination reactions with other elements.
What are the 2 kinds of reaction in photosynthesis?
The two stages of photosynthesis: Photosynthesis takes place in two stages:
light-dependent reactions and the Calvin cycle (light-independent reactions)
. Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.
Is a rainbow a chemical reaction?
A rainbow
is not a chemical reaction
, but is an optical illusion due to sunlight passing through water droplets in the atmosphere.
What are the two main steps of photosynthesis?
The stages of photosynthesis
There are two main stages of photosynthesis:
the light-dependent reactions and the Calvin cycle
. Requires sunlight? Schematic of the light-dependent reactions and Calvin cycle and how they're connected. The light-dependent reactions take place in the thylakoid membrane.
What are examples of double replacement?
Double Replacement Reaction Examples
An example of a double replacement reaction is
the reaction between silver nitrate and sodium chloride in water
. Both silver nitrate and sodium chloride are ionic compounds. Both reactants dissolve into their ions in aqueous solution.
What is the example of double displacement reaction?
Here are some examples of double displacement reaction:
AgNO 3 + NaCl → AgCl + NaNO
. 2NaCl + CaSO
4
→ Na
2
SO
4
+ CaCl.
What are the three types of double replacement reactions?
There are three types of double displacement reactions:
precipitation, neutralization and gas formation
.
