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What else can I help you with?
Is pencil lead a mixture or a substance?
Its a mixture
Is a lead a pure substance or mixture?
mixture
Is pencil lead a mixture or pure substance?
Its a mixture
How does the pH of a substance affect our environment?
The pH of a substance thrown in the environment can lead to a degradation of soils and waters.
What substance is reduced in a lead-acid storage battery?
Lead dioxide on the positive electrode is reduced to lead sulfate during discharge in a lead-acid storage battery.
Is lead an organic substance?
No.
What is the black writing part of a pencil made out of?
The black writing part of a pencil, also known as the "lead," is actually made of graphite. It is a form of carbon that is commonly mixed with clay to create a substance that writes smoothly on paper.
What substance is reduced in a lead storage battery?
The substance that is reduced in a lead battery as it generates electric currents is lead dioxide. You can recharge the battery by reversing the direction the current is flowing.
What is the composition of lead?
substance and binder
Black substance found in chimneys?
The black substance found in chimneys is typically creosote, a residue left behind when wood or fossil fuels are burned. Creosote is highly flammable and can lead to chimney fires if not cleaned regularly. It is important to have chimneys professionally inspected and cleaned to prevent any potential dangers.
Which substance turns black on heating in air?
There are many chemical reagents which turn black while heating in air including lead sulfate.
A substance that has high reactivity does what?
A substance with high reactivity readily undergoes chemical reactions with other substances or even with itself, often releasing energy in the process. This high reactivity can lead to the substance easily forming new compounds or decomposing into simpler substances.
What does a substance do when it is cooled?
When a substance is cooled, its molecules slow down and have less energy, causing them to move closer together. This often results in the substance contracting or becoming more dense. In some cases, cooling a substance may also lead to a change in state, such as from a gas to a liquid or from a liquid to a solid.
Is lead homogeneous or heterogeneous?
It is a pure substance.
Is pencil lead a mixture or a substance?
Its a mixture
Is a lead a pure substance or mixture?
mixture
Is lead a pure substance?
Lead is an element so it is a pure substance.
