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dimulka [17.4K]
3 years ago
8

A sample was collected from a computer keyboard and a toilet seat using two separate cotton swabs. Then, each swab was wiped on

a petri dish and left to grow for 5 days.
*Which location had the most bacteria present? The computer keyboard or the toilet seat?

*What steps can you take to prevent the spread of bacteria in the office setting?
Chemistry
1 answer:
Gnom [1K]3 years ago
5 0

Answer:

toilet seat and washing of hands ✋ very well

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Which of these are elimination reactions? Check all that apply.
kotykmax [81]

Answer:

C3H7OH → C3H6 + H20

Explanation:

If we look at the reactant and the product we will realize that the reactant is an alcohol while the product is an alkene. The reaction involves acid catalysed elimination of water from an alcohol.

Water is a good leaving group, hence an important synthetic route to alkenes is the acid catalysed elimination of water from alcohols. Hence the conversion represented by C3H7OH → C3H6 + H20 is an elimination reaction in which water is the leaving group.

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How many non-bonding electrons are present in PO43- ? Group of answer choices
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olganol [36]

Answer:

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8 0
3 years ago
What is the molecular formula for a compound with a molar mass of 42.08g/mol and an empirical formula of ch2
yan [13]

Answer:

C_3H_6

Explanation:

Hello!

In this case, since the empirical formula is the smallest representation of the molecular formula, it is known that the times in which the empirical formula is into the molecular formula is a whole number and is computed by dividing the molar mass of the molecular formula by that of the empirical formula as shown below:

\frac{42.08g/mol}{12.01+1.01x2}= \frac{42.08g/mol}{14.03g/mol}=3

Thus, the molecular formula times the empirical formula by 3 to obtain:

C_3H_6

Regards!

3 0
3 years ago
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