Answer:
Keep a close eye on her in case she starts giving birth to the next pup at the same time. A greenish/brown discharge may suggest a placenta has separated. If you see this, a puppy should be born within the next 2-4 hours.
Answer:
Atomic size decreases from left to right in the Periodic Table.
Explanation:
s you move from left to right, the nucleus gains protons.
This increases the positive charge of the nucleus and its attractive force on the electrons.
At the same time, electrons are added to the atoms as you move from left to right across a period.
These electrons reside in the same energy shell and do not offer complete shielding.
The effect of the increasing proton number is greater than that of the increasing electron number.
As a result, the valence electrons are held closer to the nucleus, and the atomic radius decreases.
Answer:
3.98 g
Explanation:
Step 1. Write the balanced chemical reaction. In this case, magnesium reacts with oxygen to produce magnesium oxide:
![2~Mg(s) + O_2 (g)\rightarrow 2~MgO (s)](https://tex.z-dn.net/?f=2~Mg%28s%29%20%2B%20O_2%20%28g%29%5Crightarrow%202~MgO%20%28s%29)
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Step 2. Calculate the number of moles of magnesium:
![n_{Mg} = \frac{2.4~g}{24.305~g/mol} = 0.0987~mol](https://tex.z-dn.net/?f=n_%7BMg%7D%20%3D%20%5Cfrac%7B2.4~g%7D%7B24.305~g%2Fmol%7D%20%3D%200.0987~mol)
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Step 3. Calculate the number of moles of oxygen:
![n_{O_2} = \frac{10.0~g}{32.00~g/mol} = 0.3125~mol](https://tex.z-dn.net/?f=n_%7BO_2%7D%20%3D%20%5Cfrac%7B10.0~g%7D%7B32.00~g%2Fmol%7D%20%3D%200.3125~mol)
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Step 4. Identify the limiting reactant comparing the equivalents. Equivalent of Mg:
![eq_{Mg} = \frac{0.0987~mol}{1} = 0.0987~mol](https://tex.z-dn.net/?f=eq_%7BMg%7D%20%3D%20%5Cfrac%7B0.0987~mol%7D%7B1%7D%20%3D%200.0987~mol)
Equivalent of oxygen:
![eq_{O_2} = \frac{0.3125~mol}{2} = 0.15625~mol](https://tex.z-dn.net/?f=eq_%7BO_2%7D%20%3D%20%5Cfrac%7B0.3125~mol%7D%7B2%7D%20%3D%200.15625~mol)
Therefore, Mg is the limiting reactant.
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Step 5. According to the stoichiometry of this reaction:
![n_{Mg} = n_{MgO} = 0.0987~mol](https://tex.z-dn.net/?f=n_%7BMg%7D%20%3D%20n_%7BMgO%7D%20%3D%200.0987~mol)
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Step 6. Convert the number of moles of MgO into mass:
![m_{MgO} = 0.0987~mol\cdot 40.304~g/mol = 3.98~g](https://tex.z-dn.net/?f=m_%7BMgO%7D%20%3D%200.0987~mol%5Ccdot%2040.304~g%2Fmol%20%3D%203.98~g)
The sandstone is older.in order for the granite to have been formed with sandstone in its precnese then it had to have already exsisted in that area..making it older.
Energy from a light source is known as radiation.