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The substances that are hard and which cannot be scratched is known as hard substances
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∙ 13y ago
nilesh sawant
shsncn h
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Because change the identity of the substances involved they are hard to reverse?
ChemicalBecause CHEMICAL change the identity of the substances involved they are hard to reverse.
What are 5 substances and 5 mixtures?
This is a very hard question! Does anybody else know?
Why are dissolved substances important for plants?
ummm its really hard so GO ASK UR TEACHER srry
Why are some metals such as sodium is soft while other are hard?
Some metals, such as sodium and potassium, are rather soft, while others, such as diamond, are very hard and can easily scratch other substances.
What is the meaning of oxidising substances?
oxidising substances are substances which gives oxygen or gains hydrogen
Because change the identity of the substances involved they are hard to reverse?
ChemicalBecause CHEMICAL change the identity of the substances involved they are hard to reverse.
Is there a difference in how soft water and hard water dissolves substances?
yes
What makes the bone hard and tough?
The substances that makes the bone hard and strong are calcium and phosphorous. They are minerals found in our food. They are the main substances that make the bones hard and strong.
Will one Vicodin show up on a drug test?
Not atall, only hard substances
What are 5 substances and 5 mixtures?
This is a very hard question! Does anybody else know?
What does a high boiling temperature indicate about a substances?
intermolecular forces are hard to overcome...apex
What is the substances in a styling gel that makes your hair hard?
It varies but is usually a modified cellulose polymer.
Is outer planets made of heavier material than a inner planet?
No because the inner planets are made of rocky and hard substances and the outer planets are made of gassy lighter substances.
What substances do bone cells take from the blood to keep the bone hard?
it takes calcium! it takes calcium!
What is a hard substance composed of one or more minerals or mineral like substances?
A rockA rock?
Which species of animals gnaw at hard substances to wear down its front teeth that never stops growing?
rodents
Why are dissolved substances important for plants?
ummm its really hard so GO ASK UR TEACHER srry
