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jok3333 [9.3K]
3 years ago
14

What type of machine is a ramp for wheelchairs?

Chemistry
2 answers:
kap26 [50]3 years ago
5 0
C. a simple machine. 
My name is Ann [436]3 years ago
4 0
ANSWER: C. Simple machine 
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Oxygen and hydrogen are both elements that are found as gases at room temperature. When oxygen combines with hydrogen, they prod
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A

Explanation:

has properties that are different from the original substances.

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What is glucose? How is it formed?​
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Glucose is a simple sugar with the molecular formula C6H12O6. It is a carbohydrate.
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What is meant by the term sensitivity in Analytical Chemistry? (a) The term refers to the limit at which the absorption instrume
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The term sensitivity in Analytical Chemistry is "the slope of the calibration curve or a function of analyte concentration or amount".

<u>Answer:</u> Option B

<u>Explanation:</u>

In a sample, the little amounts of substances can be accurately evaluated by a method is termed as "Analytical sensitivity". This detect a target analyte like an antibody or antigen, process is considered as potential of a test to and generally demonstrated as the analyte's minimum detectable concentration.

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3 years ago
4. Which of the following NOT TRUE about real gas
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Answer:

The answer is D.

Explanation:

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When the distance between molecules decrease,

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7 0
2 years ago
Draw the structure for 1-nitrobutane, making sure to add all non-zero formal charges.
TiliK225 [7]

The molecular structure of 1-nitrobutane is C_{4} H_{9} NO_{2}. The structure of 1-nitrobutane is shown below.

An atom's formal charge would be determined by the covalent model of chemical bonding, which assumes that almost all chemical bonds include equal sharing of electrons among all atoms, regardless their relative electronegativity.

The structure for 1-nitrobutane, making sure to add all non-zero formal charges

There are four kind of molecule present in 1-nitrobutane and they are carbon, hydrogen , nitrogen and oxygen. Nitrogen is bonded with two oxygen atom out of them one oxygen atom is attached with single bond and second oxygen atom is bonded with double bond. Nitrogen has positive charge whereas oxygen has negative charge.

It is a kind of alkane in with nitro group is attached with alkane group.

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