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viva [34]
3 years ago
10

Calcium lon Protons: Neutrons: 20 Electrons: Mass: *it’s an ion*

Chemistry
1 answer:
zepelin [54]3 years ago
7 0

Answer:

Proton:20

Electrons:20 (18 if wanted balance electron)

Mass:40

Ca²+

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Hemoglobin ___________. (Select all that apply).
alexandr1967 [171]

Answer:

Option B and A

Explanation:

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5 0
1 year ago
#1. Which one of the following statements correctly defines active site? The active site is a site on the enzyme molecule where
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Active sites in enzymes are where substrates bind. Once they bind, a catalytic reaction occurs as a complex between substrate and enzyme is formed. Enzymes are termed as biocatalysts or simply catalysts since they speed up the catalytic reaction. After the reaction, they simply revert back to their original form, after having adjusted to fit with substrate. 
7 0
3 years ago
A 100.5 ml intraveneous (iv) solution contains 5.10 g glucose (c6h12o6). what is the molarity of this solution?
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Answer is: <span>the molarity of this glucose solution is 0.278 M.
m</span>(C₆H₁₂O₆<span>) = 5.10 g.
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</span>n(C₆H₁₂O₆) = 5.10 g ÷ 180.156 g/mol.
n(C₆H₁₂O₆<span>) = 0.028 mol.
</span>V(solution) = 100.5 mL ÷ 1000 mL/L.
V(solution) = 0.1005 L.
c(C₆H₁₂O₆) = n(C₆H₁₂O₆) ÷ V(solution).
c(C₆H₁₂O₆) = 0.028 mol ÷ 0.1005 L.
c(C₆H₁₂O₆<span>) = 0.278 mol/L.</span> 
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8 0
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structural difference between  Rhizoids and  stolons
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 Rhizoids  absorb  water  and  nutrient ,  They  keep  plant  attached  on  the  soil  while  stolons  are  propagation  of  the  plant.
7 0
3 years ago
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