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Is making Sugar into sugar syrup a physical change or chemical change?
Unless you overdo it and carmelize it, it is a physical change. A typical process is to dissolve a large amount of sugar into hot water (physical change - the sugar is still sugar and the water is still water; they do not react. If the sugar-water is not syrupy enough, you can boil off some of the water (still a physical change). If you overdo it though, you will begin to caramelize the sugar. If the sugar is sucrose, it breaks down into fructose and sucrose along with a host of other side reactions that condense, isomerize, dehydrate, fragment, polymerize, and otherwise chemically change the original sugar. Caramelization is definitely a chemical change, but it is not necessary to make syrup.
Is a dead mouse a physical or chemical change?
When something is alive, there are chemical reactions going on constantly within it. The technical definition of being deadis that of chemical equilibrium. When a system (for example, a beaker with chemicals inside it, or an animal) is in chemical equilibrium, there is no reaction that can take place without an input of energy. Since an animal in chemical equilibrim cannot do anything, it is considered completely dead.So, in short, dying (that is, ceasing to be alive) is nota chemical change. Instead, dying is a lack of chemical change.
The dew comes up from the ground in the morning why in the morning?
Dew forms in the morning because at night, the air near the ground cools down. When the air temperature drops below the dew point temperature, water vapor in the air condenses into tiny water droplets on surfaces like grass and leaves, creating dew.
Is an iron nail rust a physical change?
I am quite sure that rust is a chemical change. Rust is caused when oxygen atoms begin bonding with the iron in the nail, which makes it a compound instead of a pure element.
How is ice a physical change?
Ice changing to water is considered a physical change because the molecules in the ice remain the same substance when they melt to form water. The change in state does not alter the chemical composition of the ice, it only affects the arrangement of the molecules.
Is scorching butter a physical or chemical change?
Melting is a physical change; but above a temperature the thermal decomposition of butter begin - this is a chemical change.
What events happens in autumn?
In the autumn or fall, leaves begin to lose their chlorophyll and turn different colors. After that, the leaves lose their cohesion and fall to the ground.
What property chemical or physical would best describe the process of water evaporating from the oceans to begin the water cycle?
evaporation is a physical change
Why does 'take off' mean to begin to fly?
Take off is when the wheels of the aeroplane leaves the runway (ie the aeroplane takes off from the ground).
When did composting begin?
Composting has been happening naturally in the wild nearly since the world began. When leaves fall off trees, they compost on the ground.
Scorching butter chemical or physical change?
Melting of butter is a physical change, a change of phase; but the brown color, at high temperature, is an indication of thermal decomposition - this ia a chemical change (change of composition).
Where does fall begin?
by leaves changing
What is a physical change that takes place when oxygen and hydrogen are combined to form H2O?
When oxygen and hydrogen combine to form water there is a chemical change, not a physical change. That may be followed by a physical change, depending on the conditions when the chemical change occurs. You may, for example begin with water vapor and, if the temperature is low enough, it will condense (a physical change) to liquid water.
Are butter biscuits a chemical change?
It is not chemical change ,it is a physical change
Explain the chemical change that takes place in tree leaves?
Leaves change colors for the following reasons: Once the water supply is cut off in the fall, no more chemical reactions take place for the leaves to make their own food. As the chlorophyll dissipate from the leaves and there is no water, the leaves begin to dry up. Once the manufactoring of food stops completely, the leaves dry up and fall from the tree. The water is turned on by nature in the spring and the leaves begin to make more food and give off oxygen.
Do you cut daffodil leaves back to the ground?
It is not necessary to cut back the daffodil leaves. When they become brown they will detach from the bulb and become leaf litter for the earthworms and other decomposers to utilize. However some gardeners want to use the space for other plants, and thus will want the leaves gone.After the daffodil flowers have faded, the plant needs to restore the nutrients that were used, so it can bloom the next year. The leaves must remain as stay green for this to happen. It takes about 4 weeks. When the leaves begin to turn yellow, you can cut the leaves off at ground level.
What physical change is it when the windows begin to fog?
When the windows begin to fog, the physical change is: condensation of water vapor.
