Cr2O3+ 2Al -----------> 2Cr+ Al2O3
Cr2O3--------2Cr.
( oxidation no. of cr +3 to +1 means hain of electron so it act as oxidizing agent)
similarly,
2Al------> Al2O3
( oxidation no. of Al +1 to +3 means loss of electron so it act as reducing agent)
Answer:
A solid has a definite volume and shape, a liquid has a definite volume but no definite shape, and there is no definite volume or shape of a gas. Usually, the transition from solid to liquid does not change a substance's volume substantially.
Explanation:
Answer:
C
Explanation:
This is the quantity of heat required to raise the temperature of a unit mass of a substance from solid to liquid without change in temperature
Answer:
Irish convicts
Explanation:
European explorers were familiar with Australia since the 1600s. However, they stepped their foot on infertile and dessert parts of the continent, so they showed no interest for this new land. Upon finding fertile land in eastern parts of the continent, in the 1700s, James Cook claimed it a British land.
Britain has just lost its colonies in America, so they decided to send men to this new land. However, they considered it infertile, lacking in resources and hard to live on, so they sent convicts, in, what will be known as the First Fleet, in 1788.
Thus first contingent of ships carried around 1500 convicts, mostly Irish, with more than 100 000 convicts in the following years.
With them, Catholicism arrived in Australia, and later spread throughout the continent.
Answer:
and birds can fly without wings es hora de vomer
