What is steel and why is it better than iron?

1 answer:

5 0

Steel is practically one of the worlds most important metals to use in construction, it is harder and stronger than iron can be. You can say iron is the base metal of steel, if you need more info, just ask :>

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When a magnesium ribbon is heated in air the product former is heavier.on the other hand when potassium manganate(VII) is heated

vesna_86 [32]

Answer: On heating, Magnesium forms its oxide; while potassium manganate(VII) decomposes

Explanation:

Magnesium Mg, on heating forms Magnesium oxide

2Mg(s) + O2(g) --> 2MgO

Potassium permanganate KMnO4, on heating decomposes to potassium manganate K2MnO4, manganese dioxide MnO2, and Oxygen gas O2.

2KMnO4 --> K2MnO4 + MnO2 + O2

The difference in observation is that, on heating, Magnesium forms its OXIDE as product; while potassium manganate(VII) decomposes, giving OFF most of its constituents and reducing its weight.

4 0

3 years ago

If you wanted to make a crucible for melting sodium (Na), which metal would be most suitable for that purpose

Andreyy89

Calcium would be best suitable

7 0

2 years ago

What is the mass of 4.2 x 10^24 molecules of Ca(OH)2

kvv77 [185]

Udirirororofofkflfofofofo

6 0

3 years ago

Read 2 more answers

Calcium hypochlorite, Ca(OCl)2, is a bleaching agent produced from sodium hydroxide, calcium hydroxide, and chlorine. Socium chl

bija089 [108]

Answer: The missing coefficient is 2.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$2NaOH+Ca(OH)_2+2Cl_2\rightarrow Ca(OCl)_2+2NaCl+2H_2O$

As in the products, there are 2 atoms of sodium, thus there will be 2 atoms of of sodium in the reactant as well. This will balance the number of hydrogen and oxygen atoms as well.

Thus the missing coefficient is 2.

6 0

2 years ago

Please help!!!!!!!

wolverine [178]

The answer is c. 104 g because 152-64 equals 88 and 192-88 equals 105

6 0

3 years ago