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LenKa [72]
3 years ago
11

When measuring the volume of an irregularly shaped object you would measure the amount of water____ or pushed away

Chemistry
1 answer:
Over [174]3 years ago
3 0
Displacement is the answer
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How many non bonding electrons is in OH-
nikdorinn [45]

Answer:

There are 8 valence electrons

Explanation:

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3 years ago
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The mass of h2 produced by reaction of 1.80 g al and 6.00 g h2so4 is 0.112 g. what is the percent yield?
nydimaria [60]
First, let us write the reaction. We know that the reactants are Aluminum and Sulfuric acid, and one of the products is hydrogen. That means the reaction is a single replacement reaction as shown below:

2 Al + 3 H₂SO₄ = 3 H₂ + Al₂(SO₄)₃

Next, let us determine which of the reactants is limiting:

1.80 g Al (1 mol/26.98 g)(3 mol H₂SO₄/2 mol Al)(98 g H₂SO₄/mol) = 9.807 g

It would need 9.807 g. But the only available amount is 6 g. That means that H₂SO₄ is the limiting reactant. We use 6 g as the basis to know the theoretical yield:

6 g*(1 mol H₂SO₄/98 g)*(3 mol H₂/ 3 mol H₂SO₄)*(2 g /mol H₂) = 0.122 g

Therefore, the percent yield is equal to
Percent yield = (0.112 g/0.122 g)*100
Percent yield = 91.8%
3 0
3 years ago
The element oxygen, represented by the symbol O, is classified as
Katarina [22]
Oxygen<span> is a </span>chemical element<span> having a symbol </span>O<span> and having an </span>atomic number<span> 8.
Oxygen is a pure substance , and it is not a mixture or solution, Niether it is a compound ... Instead , it forms chemical compounds by reacting with other elements.
So , according to above explanation ,
A. A pure substance , is the correct answer.</span>
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3 years ago
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What does it mean to classify?
pashok25 [27]

Answer:

2

Explanation:

to separate objects or ideas into group based on ways they are alike

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GREYUIT [131]
It's el mapa so the answer is incorrect. Even though mapa has an 'a' at the end, you will still use el.
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