Its a chemical reaction because both are affected by the reaction and changed. hope this helps (ू• o •ू )
Answer:
1.07 g Ba
Explanation:
Hello there!
In this case, according to the definition of the Avogadro's number and the molar mass, it is possible to say that 6.022x10^{23} atoms of barium equal one mole, and at the same time, 1 mole equals 137.327 grams of this element; thus, it is possible to say that 6.022x10^{23} atoms of barium have a mass of 137.327 grams; therefore, it i possible for us to calculate the required mass in grams as shown below:

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Well because the lowest possibility of having a decen is 3-decene so 6-decene is not possible. Hope this helps!! :)
Answer:
Radium
Explanation:
It has the highest atomic number so it would have more shells, making it larger than the others.
Aluminum has three oxidation states. The most common one is +3. The other two are +1 and +2. One +3 oxidation state for Aluminum can be found in the compound aluminum oxide, Al2O3.