2 years ago

PLS HELP NO LINKS PLS What is the pH of normal rainfall?

Chemistry

2 answers:

rodikova [14]2 years ago

8 0

Answer:

between 5 and 5.5

Explanation:

pishuonlain [190]2 years ago

4 0

Answer:

between 5.0 and 5.5

Explanation:

between 5.0 and 5.5

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2 years ago

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3 years ago

What volume of lead (of density 11.3 g/cm3 ) has the same mass as 395 cm3 of a piece of redwood (of density 0.38 g/cm3 )? Answer

Zepler [3.9K]

$d_{1}=\frac{m}{V_{1}}\\\\
V_{1}=395cm^{3}\\
d_{1}=0,38\frac{g}{cm^{3}} \ \ \ \ \Rightarrow \ \ \ \ m=395cm^{3}*0,38\frac{g}{cm^{3}}=150,1g\\\\\\
d_{2}=\frac{m}{V_{2}}\\\\
m=150,1g\\
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