Answer:
b) The number of orange fish is 1 1/3 times the number of blue fish.
Step-by-step explanation:
We are given the following information in the question:
In a fish tank, the ratio of orange fish to blue fish is 4:3.
Thus, we can write:
Thus, total number of fishes in the tank can be written as:
a) False
If there is a total of 56 fish in the tank,than 32 of the fish are orange
Total number of fish = 56
b)True
c) False
If there are 12 blue fish in the tank, then there are 16 orange fish.
Number of blue fish = 12
WHAT IS THE SQUARE ROOT OF PIE?
Answer:
1.77245 is the square root
Answer
Find out the how far has Rita hiked .
To prove
Let us assume that the rita hiked distance be x.
As given
rita is hiking along a trail that is 13.7 miles long.
she has hiked along of this trail.
Than the equation becomes
x = 1.37 miles
Therefore Rita hiked 1.37 miles of the a trail that is 13.7 miles long.
Answer:
Rita hiked 1.37 miles of the trail
10) How many grams are there in 3.30 x 10^23molecules of N216?
3
The number of grams in the given sample is 434.5 g.
Molar mass is the mass equivalent of Avogadro's number of atoms of an element, or Avogadro's number of molecules of in a chemical compound.
Given:
The number of molecules in the sample of N₂I₆ = 3.30 X 10²³
We need to find: the number of grams in the given sample,
One mole of a substance has exactly 6.022 X 10²³ elemental units. These elemental units can be molecules, ions, or atoms depending on the substance.
If 6.022 X 10²³ molecules of N₂I₆ constitute 1 mole of the substance,
Then 1 molecule will constitute 1/6.022 X 10²³ moles of the substance.
Therefore, 3.30 X 10²³ molecules of N₂I₆ will have 3.30 X 10²³ / 6.022 X 10²³ moles
= 3.300 / 6.022
= 0.55 moles
We know that the mass of 1 mole of a substance is equal to its molar mass.
The molar mass of N₂I₆ = 2 X Molar mass of N + 6 X Molar mass of I
= 2 X 14 + 6 X 127
= 28 + 762
= 790 g
Thus, 1 mole of N₂I₆ will weigh 790g
Therefore, 0.55 moles will weigh 790 X 0.55 g
= 434.5 g
Hence, the number of grams in the given sample is 434.5 g.
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Answer:
433g
Step-by-step explanation:
3.3x10^23 ,olecules x lmol/ na molecules x 789.44,/ mol = 433g
Answer:
Step-by-step explanation:Absolute value is a number's distance away from zero. For example, on a number line, -9 is 9 spaces away from zero. So, the absolut value is 9. Similarly, the number 9 is also 9 spaces from zero, so the absolute value would be 9. 9 and -9 both have an absolute value of 9. I hope this is helpful!
-32, 32. Absolute value is this distance away from 0 the number is