Explanation:
Atomic number of carbon is 6. So, 4 valence electrons are present.
Therefore, it can form 4 covalent bonds with varying bond angles by sharing its valence electrons.
Catenation is also an important property of carbon. Catenation is bonding with atoms of same element. Carbon skeleton can be formed in any direction and can vary in length, branching, and ring structure.
Elements required for making most of the molecules in living organisms are:
C, H, N, O, P and S
Carbon easily form covalents with other 5 elements.
These properties make carbon most versatile building blocks of the molecules used by living organisms.
Its A because there has to be a roman numeral to indicate which net charge of iron was used
Answer:
96,532,000,000,000,000,000,000 ions.
Explanation:
- Assume the highest concentration of HCl in the stomach (160 mmol/L) that is in the canaliculi.
- This means that 1.0 L of the stomach acid contains 0.160 mol.
- Every 1.0 mole of HCl contains Avogadro’s number of molecules (6.022 x 10²³) molecules.
- Every 1.0 molecule of HCl contains 1.0 H⁺ ion.
<u><em>Using cross multiplication:</em></u>
1.0 mole of HCl → 6.022 x 10²³ H⁺ ions.
0.160 mole of HCl → ??? H⁺ ions.
∴ The no. of H⁺ ions in 1 liter of stomach acid = (6.022 x 10²³ H⁺ ions)(0.160 mole of HCl) / (1.0 mole of HCl) = 9.6352 x 10²² ions = 96,532,000,000,000,000,000,000 ions.
Answer: The box is moving downward with increasing speed.
Explanation:
C
Ammonia, because it’s a polar molecule, will get attracted to the hydrophilic end while the vegetable oil (non-polar) will interact with the hydrophilic end. Both, therefore have the capacity to dissolve in soap due to the amphipathic properties of soap.
Explanation:
Soap can be categorized as having amphipathic properties. Soap can be composed of fatty-acid chains co-joined with sodium/potassium ions. The fatty acid chains act as hydrophobic ends while the fatty acid acts as the hydrophilic end. This is why soap is a good washing agent The hydrophilic end attached to the ‘dirt’ that needs to be washed away, while the hydrophilic end interacts with the water molecules. Rinsing then washes away the soap including the ‘dirt’.
Learn More:
For more on soap chemistry check out;
brainly.com/question/13054177
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