Humans are dependent on _______ for their food supply.a.waterb.biomassc.fossil fuelsd.timber
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Answer: b. Biomass
Humans are dependent upon biomass for their food supply. Biomass is the organic matter that is produced by the living organisms during their life cycle. The biomass is transferred from one organism to other organism in a food chain when one organism is consumed by other organism in order to obtain food and energy. Human beings are hetrotrophic organisms, which means they are dependent upon plants and animals for their food and energy requirement. The food is a form of biomass, which is being transferred among the living beings in the food chain.
The answer is biomass
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Answers
Hello there!
Hydrogen has one proton because the number of protons in an atom is equal to the atomic number of the element. S ince hydrogen's atomic number is 1, it has one proton.
I hope that's help !
Answer:1
Explanation:
hydrogen only has 1
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Answer:
Explanation:
El peso equivalente del metal se calcula por regla de tres simple:
Answer:
El peso equivalente del metal es 1/20 g
Explanation:
Una muestra contiene 160 g de bromo y 2 g de hidrógeno. Otra muestra de bromuro metálico contiene 4 g de bromuro y 1 g de metal. Encuentra el peso equivalente del metal
Aquí tenemos la primera muestra que tiene la relación de bromo a hidrógeno de 160 g de bromo a 2 g de hidrógeno.
Eso es 160 g de bromo está presente con 2 g de hidrógeno
Dividiendo la combinación anterior por 160 para encontrar la cantidad de hidrógeno que se combina con 1 g de bromo, tenemos
(160 g) / 160 de bromo está presente con (2 g) / 160 de hidrógeno
1 g de bromo está presente con 1/80 g de hidrógeno
Por lo tanto, 4 g de bromo están presentes con 4/80 g de hidrógeno o tenemos;
4 g de bromo están presentes con 1/20 g de hidrógeno
Por lo tanto, el peso equivalente del metal = 1/20 g.
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number of moles : 8.4 / 40.0 => 0.21 moles
1 mole ---------------- 6.02 x 10²³ molecules
0.21 moles ---------- ?
molecules : ( 0.21 ) x ( 6.02 x 10²³ ) / 1
= 1.264 x 10²³ molecules
hope this helps!
Answers
Answer:The atom with the largest radius and the most valence electrons.
Explanation:it just makes sense and it’s also right.