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salantis [7]
3 years ago
6

Directions

Chemistry
2 answers:
AnnyKZ [126]3 years ago
8 0

Answer:

for which lab is it on edge?

Explanation:

Andreyy893 years ago
5 0
Esto es falso solo quiero ganar puntos
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Oxygen is needed to carry out a lot of biochemical processes in the body. If the amount of oxygen available to the blood decreases significantly a lot of things will go wrong in the body. For instance, lack of adequate oxygen will lead to the death of neurons which will eventually leads to brain cells death and irreparable brain damage. Oxygen is also needed for cellular respiration, without respiration, there will not be oxygen for carrying out various cellular activities and this will result into death. Oxygen deprivation will also leads to difficulty in breathing and other associated problems.
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4 years ago
Draw the Lewis structure for the polyatomic formate anion. Be sure to include all resonance structures that satisfy the octet ru
givi [52]

Answer:

Lewis structure of polyatomic formate anion.

Explanation:

To draw Lewis structure for any chemical species,

1)Count the total number of valence electrons present in it.

This can be obtained by adding valence electrons of each constituent atom.

2)Arrange those valence electrons in such a way that each atom should attain eight electrons around it to satisfy octet theory.

The structure of formate ion and its Lewis structure are shown below:

HCOO- is the formate ion.

It has total:

1+4+6+6+1 = 18 valence electrons.

Since, hydrogen has one, carbon has four and oxygen has six valence electrons and the charge of the anion is one.

Arrange this 18 electrons in such a way that each atom should get 8 electrons around it.

Resonance structures of formate ion:

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Which statement is true about the charges assigned to an electron and a proton?(1) Both an electron and a proton are positive.
Digiron [165]
Answer=3

Electrons carry a negative charge while protons carry a positive charge
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Why does half a mole of water molecules have more mass than 2 moles of helium atoms?
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Answer:

everything (matter) is made up of molecules(atoms)

Explanation:

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How much energy is required to change the temperature of 50g of water from 20 C to 55 C?
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