Thus we can balance the oxygen atoms by putting a prefix of 25/2 on the left side. To obtain a equation containing whole numbers, we multiply the entire equation by 2. This gives the final equation. 2 C8H18 + 25 O2 ---> 16 CO2 +18 H2O.
Answer:
A shape has 2 pairs of parallel sides and no right angles. What shape is it?
Trapezoid
Parallelogram
Square
RectangleA shape has 2 pairs of parallel sides and no right angles. What shape is it?
Trapezoid
Parallelogram
Square
Rectangle
Explanation:
A shape has 2 pairs of parallel sides and no right angles. What shape is it?
Trapezoid
Parallelogram
Square
Rectangle
1.51 x 10²⁵atoms
Explanation:
Given parameters:
Mass of Na = 578g
Unknown:
Number of atoms = ?
Solution:
To find the number of atoms, we must first find the number of moles the given mass contains.
Number of moles = 
molar mass of Na = 23g
Number of moles = 
= 25.13moles
1 mole of a substance = 6.02 x 10²³atoms
25.13 mole of Na = 25.13 x 6.02 x 10²³atoms
This gives 1.51 x 10²⁵atoms of Na
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Avogadro's constant brainly.com/question/2746374
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Answer:
Single replacement reaction
Explanation:
