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list some uses of non metals [at least 10 uses]
copper does not react with dilute hydrochloric acid even on heating but reacts with sulphuric acid . why?
what are the uses of metals and nonmetals
which is best conductor of heat and electricity?
a)gold b)silver c)copper d)aluminium
uses of 5 metals and non metals in our daily life.
in what form magnesium is found in plants
Give 10 examples of non- metals.
Wht happens when zinc strip is dipped into copper sulphate solution?
Find out the location of the deposits of iron, alimunium and zinc in india?
Silicon reacts with hydrochloric acid forming hydrogen in the following manner
Silicon + 4HCl -------> Silicon Tetrachloride + Hydrogen
Please Clarify this
is plastic a non metal? if no, then why not? if yes, then why is it written in the column " properties of non-metals " that all non- metals are soft and can be easily broken? i need a perfect explanation
What Is Thermite Reaction?
what is sonority? explain in detail
Fe + O2 + H2O -----> ?
Why is phosphorus stored under water and sodium and potassium under kerosene?????
Name some common non-metals used in our daily life
Why zinc is more reactive than copper?
list of metals with their
displacement reaction between magnesium and zinc sulphate.explain
name a non-metal that is a good conductor of heat and electricity
what do u mean by reactivity series of metals?
A metal `X` is found in the form of filings which burns vigorously when sprinkle on flame. When these filings are treated with sulphur a black colured compound `Y` is formed which is not attracted by magnet. `X` reacts with dil HCl to liberate hydrogen gas. `X` reacts with steam to form `Z` along with hydrogen gas. Identify `X`, `Y`, and `Z`. Write the reaction involved.
give examples of malleable, ductile, sonorous materials
Q.1. can you store lemon pickle in an aluminium utensil?explain
Q2. give reasons for the following.
a. aluminium foils are used to wrap food items.
b.immersions rods for heating liquid are made up of metalic substance.
c. copper cannot displace zinc from its salt solution.
d.sodium and potasium are stored in kerosene.
why gold is found in free state but iron is not?
Rust is a basic or acidic oxide?
what happens when a burning matchstick is brouth near the mouth of the test tube in which a metal reacted with sulphuric acid ??????
when gold ornaments are sent for polishing they lose small amount of weight.explain how does this happen?
give an example of reaction of non metal with bases
Why can't copper displace zinc from its salt solution ?
Why are sodium and potassium stored under kerosene Oil.
name a non metal which has metallic lustre.
write the reactivity series of metals
1. The most reactive metal is
a)Iron b)Gold c) Potassium d) Zinc
2. What happens when aluminium metal is placed in the freshly prepared solution of sodium hydroxide ? What does a "POP" sound indicates , when a burning matchstick is brought near the mouth of the test tube?
Prepare Index cards for any four metals and four non-metals. The card should have information like name of metal/non metal;It's physical properties ,chemical properties and it's uses.
i need the symbols of atlaest 20 metals and 20 non metals
the main ones
why lemon pickle is not stored in aluminium utensils
Please explain this equation 2Cu+H2O+CO2+O2=Cu(OH)2=CuCO3
What are the physical and chemical properties of metals and non-metals?
Find the odd one out and why:
a)iron, Aluminium, Copper, Sodium.
b)Carbon, Sulphur, Phosphorus,Bromine.
c)Helium, Neon, Argon,Hydrogen.
Which non metal is used in vulcanization of rubber and why??
why immersion rods for heating liquids are made up of metallic substances?????
what is meaning of lusture
more reactive metals occur in the combined form, whereas less reactive metals occur as free metal in nature. give reasons. ( common quick experts its urgent)
why is gold preferred for making jewellery?
why is iron used for making railway tracks,engines ,etc?
how do metals react with acids? explain through examples.
A compound `X` is used for drinking, has pH =7.Its acidified solution undergoes decomposition in presence of electricity to produce gases `Y` and `Z` The volume of Y is double than Z. Y is highly combustible whereas Z is supporter of combustion .Identify X, Y & Z and writes thechemical reactions involved.
aluminium is above iron in the reactivity series. however its reactions with oxygen and water appear to show that it is less reactive than iron. explain.
What does POP sound indicate?
Prepare imdex cards for any four metals and non-metals. The card should have information like name of the matal/non-metal, its physical properties, chemical properties and uses.
plzzz give me a speech on any national leader. plzz fast i hv a test tomorrow.
Why sodium is kept is kerosene..?
Why sodium does not react with kerosene?
How to prepare Index card on 4 metals and 4 non-matals with the information like name of matals/nonmatals , its physical properties , chemical properties and uses ???????????
please tell faster
Which are the two non metals that are soft solids?
what happens when dilute sulphuric acid is poured oon copper plate?
names of places in india where gold copper and iron mines are located
give me some poster ideas for the topic `say no to plastics`
vidisha placed a copper wire in silver nitrate solution. After sometimes she noticed that the colour of the wire and solution changed. What did she observed?
a-the colour of the solution turns blue and precipitate of solid silver is obtained.
b-colour of solution turns green and copper wire turns blue.
c-there is no change in the colour of the solution or colour of the wire.
d-colour of the solution becomes silver and there is no changein the colour of the copper wire.
answer the question and explain.
WHY IS SODIUM KEPT UNDER KEROSENE AND NOT UNDER WATER
what are metalloids? give two examples.
Name two metal which are liquid at room temperature
Two difference between metal non metal ???
in which part of the sky would you look for te full moon?
Suppose copper is high up in the reactivity series.Would it still have been such a useful metal ? Give reasons .
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