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timofeeve [1]
3 years ago
12

PLEASE HELP WITH SCIENCE!!!!!!!!!!

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
8 0

Answer:

A) iron rusting

Explanation:

the answer is iron rusting because iron rusting takes a longer time than the others, and I just took the test and the answer was iron rusting.

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A cylinder is labeled \"PENTANE.\" When the gas inside the cylinder is monochlorinated, five isomers of formula C5H11Cl result.
melisa1 [442]

Answer:

a mixture of two these

Explanation:

The number of isomeric monochlorides depends on the structure and number of equivalent hydrogen atoms in each isomer of pentane.

n-pentane has three different kinds of equivalent hydrogen atoms leading to three isomeric monochlorides formed.

Isopentane has four different types of equivalent hydrogen atoms hence four isomeric monochlorides are formed.

Lastly, neopentane has only one type of equivalent hydrogen atoms that yields one mono chlorination product.

Hence the cylinder must contain a mixture of isopentane and neopentane which yields four and one isomeric monochlorides giving a total of five identifiable monochloride products as stated in the question.  

8 0
3 years ago
An element has two naturally-occurring isotopes. The mass numbers of these isotopes are 113 amu and 115 amu, with natural abunda
DENIUS [597]

Answer: Its average atomic mass is 114.9 amu

Explanation:

Mass of isotope 1 = 113 amu

% abundance of isotope 1 = 5% = \frac{5}{100}=0.05

Mass of isotope 2 = 115 amu

% abundance of isotope 2 = 95% = \frac{95}{100}=0.95

Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(113\times 0.05)+(115\times 0.95)]

A=114.9amu

Thus its average atomic mass is 114.9 amu

5 0
3 years ago
Accounting Concepts Should we buy stock in a company? Should we extend a line of credit to a company? Should we continue with cu
CaHeK987 [17]

Answer:

1

Explanation:

3 0
3 years ago
How many atoms of iodine are needed to react with one atom of magnesium?
kotegsom [21]

Answer:

uh

Explanation:

4 0
3 years ago
How many moles of h20 are produced from 3 moles of oxygen?
Ierofanga [76]

Answer:

Stoichiometric Values in a Chemical Reaction

Explanation:

The coefficients next to the reactants and products are the stoichiometric values. They represent the number of moles of each compound that needs to react so that the reaction can go to completion.

6 0
3 years ago
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