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A change of phase takes place at a constant?
A change of phase takes place at a constant temperature and pressure. During a change of phase, the substance absorbs or releases latent heat without a change in temperature.
What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
How does wax change when it melts?
When wax melts, it transitions from a solid to a liquid state due to the heat energy breaking down the molecular bonds that hold its solid structure. The molecules in the wax move more freely, resulting in a loss of shape and volume as the wax takes on a liquid form.
Is physical or chemical reaction takes place when sodium hydroxide mixed with water?
It is a physical change. The sodium hydroxide dissolves, but it is still sodium hydroxide.
Which row shows the change that takes place when element X gains the new particle shown?
The row that shows the change that takes place when element X gains a new particle is the row that represents the atomic number increasing by 1 and the mass number remaining the same.
What takes place when ice cools a drink?
The ice melts
Describe the change in the position of molecules that takes as a material melts?
p
A change of phase takes place at a constant what?
A change of phase takes place at a constant temperature.
How long it takes for a crayon to melt?
1 hour
Cooking hot, cheesy, pizza in the oven chemical or physical?
A physical change that takes place when making pizza is when the cheese melts because a new substance is not created. Another physical change is the pizza increasing in size while it cooks.
What is a chemical that causes changes in food as digestion takes place?
It's enzyme because it sort of melts the food.
When cheese is cut into a slices does a chemical formula takes place.?
I assume you mean chemical "change" and the answer is no, it is a physical change that takes place.
How long it takes a wax crayon to degrade?
2000 years
What kind of change that takes place when sugar is heated at a short time?
a chemical change take a place
A change of phase takes place at a constant?
A change of phase takes place at a constant temperature and pressure. During a change of phase, the substance absorbs or releases latent heat without a change in temperature.
Where does a physical change takes place?
When a physical change takes place, a certain element or chemical will change its shape and in many cases, the volume too. Water takes the shape of the mold casing once it freezes.
How long does it take your stomach to digest a crayon?
Your stomach wont actually digest a crayon, but it should take about 12 hours for it to...pass.
