Answer:
atoms can't be created nor can be destroyed.
atoms cat be broken down into smaller pieces.
all atoms of an element are identical.
chemical reactions cause atoms to be rearranged.
Answer:
it's a tough decision but the answer is A)
A fórmula que te dá o comprimento da circunferência é:
<span>2*pi*r </span>
<span>onde r é o raio. </span>
<span>Assim, uma circunferência de raio 7cm tem: </span>
<span>2*pi*7 </span>
<span>ou </span>
<span>2*3.14*7 = </span>
<span>43.96 cm </span>
False? I don’t understand what you are saying.
