PLEASE POST YOUR QUESTIONS IN ENGLISH, ANYONE CAN REPORT YOU FOR DOING THIS BE CAREFULL
Answer:
1. Hyphothesis 2.Theory 3. law
Explanation:
not sure, but law is observation, theory is based on knowledge things before.
Answer:
This is completely wrong. How could you possibly think like this?
Explanation:
First of all, wearing a mask excessively does not change the oxygen you breathe. It does, however, change <em>how</em> you breathe. You still breathe the same air, but your lungs are different.
Second of all, we do not breathe in more carbon dioxide, because it gets filtered out. (Side note: we don't 'excrete' carbon dioxide, we just filter it out of the air.)
Third of all, "taking medicine & supplements too much results in Stomach & HEART is weak." What medicine have we taken? The vaccine, (of which I will not state my opinions), but other than that, there are no medicines that the general populace has taken.
Lastly, fourth of all, how did we mishandle the pandemic? There are currently 197 million people that have gotten sick worldwide. Do you know how many more people would be sick if we hadn't done what we did?
Please research your beliefs before you post them on any site. Also, please do not post anything politics- or religious- based on Brainly, as that hits nerves for some people, like me.
Max of eight electrons in the 2nd level
Answer:
Sr²⁺ (aq)+ SO₄⁻²(aq) → SrSO₄(s)
Explanation:
The reactants of our reaction are:
SrCl₂ and K₂SO₄
The products of the reactios are:
SrSO₄ and KCl
We write the molecular reaction:
SrCl₂(aq) + K₂SO₄(aq) → 2KCl(aq) + SrSO₄(s) ↓
To state the net ionic equation we split the salts by their ions from the aqueous solutions. The solid product stays the same.
Sr²⁺ (aq) + 2Cl⁻(aq) + 2K⁺(aq) + SO₄⁻²(aq) → 2K⁺(aq) + 2Cl⁻(aq) + SrSO₄(s)
As the potassium cation and the chloride are repeated, they are spectators ions so they won't react in water. Finally our net ionic equation will be:
Sr²⁺ (aq)+ SO₄⁻²(aq) → SrSO₄(s)
Sulfates from elements of group 2, always produces precipitate