The ratio is 1.07 : 0.128 : 0.106.
What is N/P/K ratio ?
These three numbers form what is called the fertilizer's N-P-K ratio — the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K). The product's N-P-K numbers reflect each nutrient's percentage by weight.
Given, mass ratio of (Molar mass of N2 =28; Molar mass of PO=78; Molar mass of K2O)=94) is 30/10/10
Therefore the ratio is : 30/28 : 10/78 : 10/94 = 1.07 : 0.128 : 0.106
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Answer: D.
Explanation: Females have XX chromosomes while males have XY
Answer is: mass od zinc is 392,28 g.
N(Zn) = 3,6·10²⁴.
n(Zn) = N(Zn) ÷ Na.
n(Zn) = 3,6·10²⁴ ÷ 6·10²³ 1/mol.
n(Zn) = 6 mol.
m(Zn) = n(Zn) · M(Zn).
m(Zn) = 6 mol · 65,38 g/mol.
m(Zn) = 392,28 g.
Na - Avogadro number.
n - amount of substance.
M - molar mass.
Answer:
B. Element
Explanation:
Tungsten is an chemical element
