Define the term 'Molecular hydrides (Covalent Bond)' . Describe in breif the types of molecular hydrides

the temp. of water at the bottom of a lake whose upper surface is broken into ice

1) -10^O

2) -4^O

3)4^O

4)0^O

Pls explain this question especially the normality part i cannot follow it

The normality of a commercial sample of hydrogen peroxide, labelled as 20 volume, is

How can we look and interpret the reaction with H2O2 if it acts like an oxidising agent or RA

Pls explain this question throughly in words

The degree of hardness of a given sample of hard water is 60 ppm.What is the amount of MgSO₄present in 1 kg of water if the entire hardness is due to MgSO₄?

what are hydrides ? what do we mean by enthalpy.

what do you mean by conventional lewis structure and binary compounds.

why and how alkali metals lose one electron to form unipositive ion???

Ortho and para hydrogen differ in

• A)

  number of protons

• B)

  molecular weights

• C)

  spins of proton

  D)

spins of neutron

Hydrogen Peroxideis obtained by the auto-oxidation of

a)2-ethylanthraquinol b)anthraquinone c)naphthalene d)anthracene

Define hydrogen economy?

Would you expect N,O and F to have lower boiling points than the hydrides of their subsequent group members?In this ques if we suppose that N,O and F doesnt involve in hydrogen bonding .Then what would be the answer and reson for answer.I actualy mean to ask if any other element which is not indulged in hydrogen bonding how we will compare its boiling point .Explain

Explain how welding takes place.And what is oxy-hdrogen torch.

what is the principle behind atomic hydrogen torch????

Is heavy water(D2o) safe for drinking ?