Answer:

Explanation:
<u>Molecular formula from Glucose:</u>
C₆H₁₂O₆
<u>3 moles of Glucose:</u>
3C₆H₁₂O₆
In 1 mole of Glucose, there are 12 hydrogen atoms.
<u>In 3 moles:</u>
= 12 × 3
= 36 H atoms
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Solutes usually dissolve best in warm solvents.
Answer:
Mass
Explanation
Mass is the amount of matter in an object
4(NH₄)₃PO₄ + 3Pb(NO₃)₄ → Pb₃(PO₄)₄ + 12NH₄NO₃
Explanation:
(NH₄)₃PO₄ + Pb(NO₃)₄ → Pb₃(PO₄)₄ + NH₄NO₃
Balancing this equation;
We simply use a mathematical approach by solving simple algebraic equations.
a(NH₄)₃PO₄ + bPb(NO₃)₄ → cPb₃(PO₄)₄ + dNH₄NO₃
a,b,c and d are the coefficients that will balance the equation;
Conserving N: 3a + 4b = 2d equation 1
H: 12a = 4d
P; a = 4c
O; 4a + 12b = 16c + 3d
Let us make a = 1;
c = 
d = 3
solving for b;
from (i); 4b = 2d -3a = 2(3) - 3(1) = 3
b = \frac{3}{4}
Now multiply a, b, c and d by 4;
a = 4 , b = 3 , c= 1 and d = 12
4(NH₄)₃PO₄ + 3Pb(NO₃)₄ → Pb₃(PO₄)₄ + 12NH₄NO₃
Learn more:
Balanced equation brainly.com/question/11102790
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Mass of metal is 8.37 g, volume of water in graduated cylinder is 20 mL. After adding the metal, water level increases to 23.1 mL. The volume of metal is equal to the increase in water level.
The increase in water level can be calculated by taking difference of final and initial level of water.
Thus,

Density of metal is defined as mass per unit volume of metal. It can be calculated as follows:

This value corresponds to the density of aluminum.
Therefore, density is 2.7 g/mL and metal is aluminum.