Answer:
Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.
Explanation:
What is the empirical formula of a compound that contains 43.38% sodium, 11.33% carbon, and 45.29% oxygen?
Na2CO3
Answer:
chemical means
Explanation:
Compounds can be separated by chemical means physical means boiling pressure
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.
Answer:
C. tug-o-war game where neither team is able to gain an advantage
Explanation:
