13
Al
Aluminum
Atomic mass 26.982
Answer:
Bedrock is the hard, solid rock beneath surface materials such as soil and gravel.
Bedrock can be made of most types of rock, such as granite, limestone, or sandstone.
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Answer:
Distance cover = 8 km
Explanation:
Given:
Speed of runner = 4 km/h
Time taken = 2 hour
Find:
Distance cover
Computation:
Distance = Speed x Time
Distance cover = Speed of runner x Time taken
Distance cover = 4 x 2
Distance cover = 8 km
Answer:
0.0002 M
Explanation:
<em>The molarity of the HCl required would be 0.0002 M.</em>
First, let us consider the balanced equation of the reaction:

<em>Stoichiometrically, 1 mole of </em>
<em> reacts with 2 moles of </em>
<em> for a complete neutralization reaction.</em>
Recall that: mole = 
Mole of 0.550 g sodium oxalate = 0.550/134 = 0.0041 mole
<em>If 1 mole </em>
<em> requires 2 moles HCl, then 0.0041 mole will require</em>:
0.0041 x 2 = 0.0082 mole HCl
Volume of the HCl = 40.95 L
Molarity = mole/volume
Hence, molarity of the HCl = 0.0082/40.95 = 0.0002 M
Answer:
<em>P1V1</em><em>/</em><em>(</em><em>c1</em><em>+</em><em>2</em><em>3</em><em>7</em><em>)</em><em>=</em><em>P2V2</em><em>/</em><em>(</em><em>c2</em><em>+</em><em>2</em><em>3</em><em>7</em><em>)</em><em> </em><em>where </em><em>c</em><em>=</em><em>Celsius</em>
Explanation:
kelvin scale is alot covinent because of it absolute zero