calculate number of water molecules and number of oxygen and hydrogen atom in a drop of water containing 0.05 mole of water ​

molecules of water

atoms of hydrogen

atoms of oxygen

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles.

1 mole of water contains = molecules of water

Thus 0.05 moles of water contain = molecules of water

Now , 1 molecule of water contains= 2 atoms of hydrogen

molecules of water contain = atoms of hydrogen

Now , 1 molecule of water contains = 1 atom of oxygen

molecules of water contain = atoms of oxygen  

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance