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What else can I help you with?
What causes molecules to change?
I think this refers to catalysts as these are considered not to be changed by a reaction-- sometimes this true when molecules react on the surface of a catalyst bu sometimes the catalyst does get involved in the chemical reaction- but is regenerated.
How does water stick together so well?
The property of surface tension causes water to occupy the least possible surface area, or to put it simply, "stick together".
What effects does distilled white vinegar have on antacid tablets?
It has a chemical reaction and the antacid starts to dissolve. or When you do the white vinegar with the antacid tablets together the tube/bottle explodes and causes a chemical reaction.
Is a sugar cube ground up a chemical change?
If the temperature is below the decomposition temperature, then melting a physical change not chemical as the liquid sugar (or molten sugar) can be solidified again.
What molecular attraction causes surface of the water to curve inside a glass?
The force of adhesion between water and glass molecules is greater than the force of cohesion between two water molecules.This causes the surface of the water to be curved. This curved surface is called a meniscus.
Is the case when a molecule causes the cell membrane to bulge inward forming a vesicle. Exocytosis Endocytosis Passive transport none of the above?
Endocytosis is the process where a molecule causes the cell membrane to bulge inward, forming a vesicle to bring the molecule inside the cell. This is distinct from exocytosis, which is the process of releasing molecules from a cell by fusing vesicles with the cell membrane and expelling their contents.
What characteristics of a water molecule causes its attraction to a cell membrane?
The polarity of water molecules, due to their unequal distribution of charge, allows them to form hydrogen bonds with the polar head groups of phospholipids in the cell membrane. This attraction helps water molecules adhere to the membrane and interact with the hydrophilic regions of phospholipids. Additionally, the small size of water molecules enables them to move freely through the cell membrane.
What change takes place in the cell membrane if a signal molecule causes a transport protein to open?
When a signal molecule activates a transport protein on the cell membrane, it undergoes a conformational change that opens a channel or alters its affinity for the molecule it transports. This allows specific substances to move across the membrane, facilitating cellular communication and maintaining homeostasis.
What are the 3 main causes of corrosion?
reaction of metal surface with oxygen (atmospheric generally )cause corrosion
If a base abstracts a proton from the water molecule what are the products of the reaction?
The products of a base (B-) reaction with water (H2O) are: the conjugate acid of the base (BH+) and a hydroxide ion (OH-) which causes the resulting solution to be basic (pH >7).
Why does the Mentos and coke reaction die out?
because the surface of the candy is partially dissolved an that removes the factor that causes the eruption
Define receptor of body?
A receptor is located on a cell membrane. Any neuronic transmission, hormone, etc. that cannot get inside of the cell's membrane will sit on the receptor in order to pass its message along to the cell. When the molecule sits on the receptor, it causes a series of reactions to occur inside of the cell. From the series of reactions that occur inside of the cell, the message is passed along, and the cell will perform as indicated by the molecule on the cell receptor.
Why does catalyst burn sugar?
Sugar is small crystal powder, thus each sugar crystal has large surface area which causes rapid reaction in presence of catalyst. This reaction produces a lot of heat, as a whole, that it causes sugar to burn.
What is the reaction of force wen a hammer hits a nail?
When a hammer hits a nail, the force applied by the hammer causes the nail to experience an equal and opposite reaction force. This reaction force drives the nail into the surface it is being hammered into.
What happens during the reaction between vinegar and aluminum?
When vinegar reacts with aluminum, a chemical reaction occurs that produces hydrogen gas and aluminum acetate. This reaction causes the aluminum to corrode and form a layer of aluminum oxide on its surface.
How are symmetric membrane any different from asymmetric membrane?
Symmetric membranes the diamter of pores is constant throughout the cross section of the membrane, as membrane thicknes causes drah to mass transfer. Where as asymmetric membranes the pore size at the surface have a different sixe compared with the holes at the bottom side. Large particles will not enter the the body of the membrane so plugging is avoided.
What kind of reaction occurs when alkenes decolourises bromine in tetra chloromethane?
The reaction is an addition reaction, where the bromine molecule adds across the double bond of the alkene, forming a colorless dibromoalkane product. This causes the bromine solution to lose its characteristic orange color, resulting in decolorization.
