0
Is sugar being heated to produce steam and a black solid a chemical change?
Wiki User
∙ 12y ago
Yes is it a chemical change as the process is irreversible. Also its properties are being changed and it looks different physically which always means a chemical change has occurred or will occur if certain substances are put together.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What answer of burning paper physical change o chemical change?
Chemical change. Burning anything will create a chemical change. Burning involves taking the object/substance being burnt + oxygen to produce water and carbon dioxide.
Why is setting off fireworks a chemical change?
In specific, fireworks aren't really a chemical change -not if it is not being shoo-ted into the air! You see, when exploded into the air, heated is added on it so when it is in the air, it will eventually explode turning it into ashes
What is the chemical equation for limestone being heated strongly in air?
CaCO3 -------> CaO + CO2
Is melting of wax is chemical change or physical?
Yes it is!:Pwhen a candle is lighted the solid wax changes into liquid wax,then it turns into vapour to produce flame.new substances like Co2 and H2O are formed alongwith the evoulation of light and heat.
Is brewing a coffee chemical or physical change?
physical. the water being added simply soaks through the coffee, so there's no chemical change.
Is water being heated up a chemical change?
yes
Is mercury being heated to produce mercury vapor a physical change?
YES, because evaperation is the same as changing it in to a gas which is a physical change.
When heated to decomposition calcium chloride produces chlorine gas is it physical or chemical?
Chemical change. Bonds are being broken.
When sugar canalize on being heated above its melting point is physical change or chemical?
Melting is a physical process.
Is Melting coin being heated and turn black this is used as a test for metal a chemical or a physical change?
hg
Is hot water an chemical or physical change?
That is a physical change because it has not had an explosive or bubbly substance.
What answer of burning paper physical change o chemical change?
Chemical change. Burning anything will create a chemical change. Burning involves taking the object/substance being burnt + oxygen to produce water and carbon dioxide.
Is turning brownie mix into a brownie a physical or chemical change?
Turning a brownie mix into brownies is a chemical change. When the ingredients are heated in the over, numerous chemical reactions take place. Because new substances are created in the process, the process is a chemical change.
Why is setting off fireworks a chemical change?
In specific, fireworks aren't really a chemical change -not if it is not being shoo-ted into the air! You see, when exploded into the air, heated is added on it so when it is in the air, it will eventually explode turning it into ashes
When a stove is being heated does it produce nuclear energy?
no. what would give you that idea?
Is food being heated in the oven a conversion from chemical energy to mechanical?
yes it is
Is a metal surface being ground a chemical change?
A metal Surface being ground is a physical change, not a chemical change.
