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kenny6666 [7]
4 years ago
5

I need help please .!

Chemistry
1 answer:
Debora [2.8K]4 years ago
8 0

hydrogen (H2),and oxygen (O2),, that is the answer





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Water is considered neutral and has a pH of:
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Answer:

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Explanation:

Since the pH scale maximum number is 14, the middle number - is 7 - which is where water is

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Density = 11g/cm3 volume = 2cm3 what is the mass
jolli1 [7]
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>

Density = 11g/cm³, volume = 2cm³. What is the mass ?

<h2><u>S</u><u>o</u><u>l</u><u>u</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>

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{ \boxed{\bf{\rm \red {Mass \: = \: Density \: × \: Volume}}}}

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3 years ago
If an experiment calls for 0.200mole acetic acid (Hc2H3O2)how many grams of glacial acetic acid do we need?
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<h3>Molar mass:-</h3>

\\ \sf\longmapsto HC_2H_3O_2

\\ \sf\longmapsto 1u+2(12u)+3(1u)+2(16u)

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\\ \sf\longmapsto No\:of\;moles=\dfrac{Given\:Mass}{Molar\:Mass}

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\\ \sf\longmapsto Given\:Mass=0.2\times 76

\\ \sf\longmapsto Given\:Mass=1.52g

7 0
3 years ago
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