Answer:
the awnser is minerals :)
Explanation:
just took the test on edg.
To find the number of atoms in 0.450 grams of P2O5, you need to calculate the number of moles of P2O5 and then use Avogadro's number to convert it to the number of atoms.
To determine the number of atoms in 0.450 grams of P2O5, we need to use the molar mass of P2O5. The molar mass of P2O5 is 141.94 g/mol. Using this information, we can calculate the number of moles of P2O5 in 0.450 grams by dividing the mass by the molar mass:
Moles of P2O5 = mass / molar mass = 0.450 g / 141.94 g/mol = 0.00317 mol
Next, we can use Avogadro's number to convert the moles of P2O5 into the number of atoms:
Number of atoms = moles x Avogadro's number = 0.00317 mol x 6.022 x 1023 atoms/mol = 1.91 x 1021 atoms
#SPJ2
Habitat degradation and fragmentation, introduction of exotic species and over harvesting.
These activities disrupt the natural function of a variety of species.
Humans must understand evolution to assess the effect these activities can have on various species and the environment
Answer:
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Alcohol-related diseases frequently cause low Mg+ levels.
- Mg+ deficiencies must be treated before potassium (K+) deficiencies.
- Mg+ deficiencies often result in low serum potassium (K+)
- Mg++ levels present similarly to calcium (Ca++) levels in the blood.
- Vomiting is not generally seen as a major cause of Mg+ loss
Answer:
When we throw a projectile up, the negative gravity acceleration acts on it. Thus, when the ball reaches the highest point, the speed of the ball becomes zero.
Explanation:
Acceleration is a vector magnitude that indicates the variation of speed per unit of time.
As displacement, velocity and acceleration are vectors we will analyze this vectorly.
We consider positive acceleration when the acceleration vector is directed in the same direction as the movement. (Acceleration)
On the other hand, we consider negative acceleration when the acceleration vector is directed in the opposite direction to the movement. (de-acceleration)
Answer:
On the basis of atomicity, molecules can be classified as : Monoatomic-composed of 1 atom e.g. He, Ne, Ar (all noble gases are monoatomic) Diatomic-composed of 2 atoms e.g. H2 , N2 , O. Triatomic-composed of 3 atoms e.g. O
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