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When lead oxide is heated in a test tube the walls become coated with what?
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Why does the walls shine after two or three days of whitewashing?
We know that slaked lime (produced by mixing water and calcium oxide) is used for white washing the walls. CaO + H2O ----> Ca(OH)2 This calcium hydroxide when reacts with Carbon di oxide in air forms a thin layer of Calcium carbonate and water is evaporated (this process takes two to three days). Ca(OH)2 + CO2 ---> CaCO3 + H2O property of calcium carbonate--> It gives shinny finish Therfore the walls shines after two of three days of white washing
How would solar heated building and floors and walls reduce fossil fuels?
Fossil Fuels are used to heat buildings, floors, and walls. Solar Energy can be used in place of fossil fuels and does not require them. Therefore fossil fuel use can be reduced by using solar heating.
With which disorder do the alveolar walls lose their elasticity become over-inflated and eventually rupture?
Emphysema
What type of reaction used in white washing the walls?
In this reaction, calcium oxide and water combine to form a single product, calcium hydroxide. Such a reaction in which a single product is formed from two or more reactants is known as a combination reaction.
Why is water balance different for cells that have walls as compardes to cells witthout walls?
In a hypotonic solution, a cell without walls could become lysed (ripped open) because the water inside the cell forces its way outside the cell, however, a cell with walls would thrive in a hypotonic solution because its wall would prevent water from breaking the cell, as a result, the cell would become turgid, a state of being pressurized, which is really good for the cell because it supports structure and makes the cell stronger and more healthy.
What colors does iron oxide add to the grand canyon walls?
Iron oxide of course is rust, so it adds a reddish-brown color.
What happens to the speed of gas when heated?
The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.
What is Shanghai plastering?
Shanghai plastering means that the walls are coated with a very shiny acrylic paint. Shanghai plaster is a way to seal walls from water damage and is very beautiful.
Which part of the plant protects the plant from the outside?
Plant cells are protected by cell walls Plants are often coated in a waxy substance for protection
What is the crisis in the pit and the pendulum?
The third and final crisis for the narrator is the discovery of the heated walls after escaping the swing of the pendulum. The walls are forcing him slowly and steadily toward the pit and his death.
What does calcimine mean?
it meansa white or tinted mixture of zinc oxide water glue used to coat walls and ceiling
What is the third crisis in the pit and the pendulum?
The third and final crisis for the narrator is the discovery of the heated walls after escaping the swing of the pendulum. The walls are forcing him slowly and steadily toward the pit and his death.
How does aging affect the bronchioles?
walls become narrower
Where can you get choc paint?
im afraid- thats not possible. Unless you are super clever and have heated walls so you can melt a chocolate bar.
What is calcimine?
Calcimine is a white or tinted liquid that contains zinc oxide, water, glue as well as coloring matter. It is used as a cleaner for walls and ceilings.
Two ways solar energy can be reduce fossil fuel use?
solar heated building and floors and walls of solar heating bulidings.
Why doesn't an inflated balloon shrink when heated?
Because as the balloon is heated, the gases on the inside of the balloon begin to expand and press out on the walls of balloon. If a balloon is refridgerated, the opposite is true: the gases on the inside of the balloon will begin to contract, causing the balloon to shrink.
