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Changes in temperature, pressure, or the addition of a catalyst can alter the state of an element or compound. Heating can cause a substance to melt or evaporate, while cooling can cause it to solidify or condense. Pressure changes can also affect the state of a substance, for example, raising the pressure can turn a gas into a liquid. Additionally, the presence of a catalyst can facilitate chemical reactions that transform a substance into different states.
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What physical properties of an element NEVER change when it becomes part of a compound?
The atomic number and mass number of an element never change when it becomes part of a compound. These values are unique to each element and are constant regardless of its chemical state.
Is chlorine a non - metallic compound?
No, chlorine is not a compound - it is an element. It is a non-metallic element that exists as a diatomic molecule (Cl2) in its natural state.
Did cl change oxidation number tue or false?
True. A change in oxidation number occurs when there is a transfer of electrons from one atom to another, leading to a change in the oxidation state of an element in a chemical compound.
Is steam an element compound or heterogeneous or a solution?
Steam is not an element or a compound, it is a mixture. It is a gaseous state of water, resulting from the heat-induced vaporization of liquid water.
True or false the first element in a compound should have no charge?
False, all compounds are electrically neutral.
What physical properties of an element NEVER change when it becomes part of a compound?
The atomic number and mass number of an element never change when it becomes part of a compound. These values are unique to each element and are constant regardless of its chemical state.
Is evporation a physical or chemical change?
Evaporation is a physical or a state change. The element or compound is not altered, and one would get it back through condensation.
In what compound is sodium found in its natural state?
if sodium is in a compound, it will not be in natural state. natural state implies that it is a pure element. ie not a compound
Is chlorine a non - metallic compound?
No, chlorine is not a compound - it is an element. It is a non-metallic element that exists as a diatomic molecule (Cl2) in its natural state.
What is the change of state from liquid to gas is called?
The change of state from liquid to gas is called vaporization.
Is mercury is a compound mixture or element?
Mercury is an element. it exists in liquid state.
Is mercury a mixture a compound or an element?
Mercury is an element. it exists in liquid state.
Is a mercury a mixture or a compound or element?
Mercury is an element. it exists in liquid state.
Is mercury a compound or a mixture or a element?
Mercury is an element. it exists in liquid state.
What changes the state of an element or compound?
Temperature or pressure.
Is br2 an element or compound?
Br2 is a compound. It is a molecule made up of two atoms of the element bromine bonded together. In its natural state, bromine exists as Br2 molecules, which means it is a compound and not an individual element.
Did cl change oxidation number tue or false?
True. A change in oxidation number occurs when there is a transfer of electrons from one atom to another, leading to a change in the oxidation state of an element in a chemical compound.
