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The Pickling Prowess Quiz

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Questions and Answers

What is the process of preserving or extending the shelf life of food called?

Freezing
Pickling (correct)
Fermentation
Canning

What is the effect of pickling on food's texture and flavor?

It enhances
It reduces
It changes (correct)
It doesn't affect

What is the pH level of typical pickling solutions?

5.5
4.6 or lower (correct)
6
7

What can be added to pickling for antimicrobial properties?

All of these (D) Signup and view all the answers

How is a pickling brine produced if the food contains sufficient moisture?

By adding dry salt (B) Signup and view all the answers

What is a Lewis acid?

A chemical species with an empty orbital capable of accepting an electron pair (D) Signup and view all the answers

What is a Lewis base?

A species that has a filled orbital containing an electron pair (C) Signup and view all the answers

What is an example of a Lewis base?

NH3 (A) Signup and view all the answers

What is an example of a Lewis acid?

Me3B (C) Signup and view all the answers

What happens in a Lewis adduct?

The Lewis acid and base share an electron pair (A) Signup and view all the answers

What is Trigonometry primarily concerned with?

Relationships between angles and ratios of lengths (D) Signup and view all the answers

When did Trigonometry first emerge?

During the Hellenistic world in the 3rd century BC (B) Signup and view all the answers

What did the Greeks focus on in Trigonometry?

Calculation of chords (D) Signup and view all the answers

What are the trigonometric ratios also known as?

Trigonometric functions (B) Signup and view all the answers

What are trigonometric identities used for?

Rewriting trigonometrical expressions to simplify them (B) Signup and view all the answers

Where did the field of Trigonometry emerge?

In the Hellenistic world (A) Signup and view all the answers

What did mathematicians in India contribute to in Trigonometry?

Creation of the earliest-known tables of values for trigonometric ratios (B) Signup and view all the answers

What is one of the applications of Trigonometry throughout history?

Geodesy (B) Signup and view all the answers

What are trigonometric identities commonly used for?

To find a more useful form of an expression (A) Signup and view all the answers

Who studied angle measure using a division of circles into 360 degrees?

Sumerian astronomers (A) Signup and view all the answers