When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced.
I believe that the answer is b...the second one down.
im not completely sure. i have not don
Answer:
No, no, yes, no
Step-by-step explanation:
The first one is not random. He is sampling only the earliest gym goers.
The second one is not random. He is sampling only from one zip code.
The third one is random. He is using a random number generator.
The fourth one is not random. He is sampling only volunteers.
Answer:
<h3>furthєr... </h3>
<h2>7¹¹ = 1977326743</h2>
<h2>———————————</h2>
<h2>———————————</h2>
hσpє hєlpful~
<h2>
~вє вrαínlч!</h2>
