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Scientific Methods

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Anonymous

Dec 03, 2024

A temperature of 323 K is equivalent to?

A temperature of 323 K is equivalent to which of the following options? 1. 50°C 2. 1.2°C 3. -50°C 4. 596°C

3 answers 14
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Anonymous

Dec 31, 2024

A virtual image produced by a lens is always?

A virtual image produced by a lens is always: A. larger than the object B. smaller than the object C. located in front of the lens D. located behind the lens

7 answers 14
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After 15 minutes, 30 g of a sample of polonium-218 remain unchanged. if the original sample had a mass of 960 g, what is the half-life

After 15 minutes, 30 g of a sample of polonium-218 remains unchanged. If the original sample had a mass of 960 g, what is the half-life of polonium-218? Additionally, suppose you want to separate leav...
6 answers 65
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Anonymous

Feb 15, 2025

Air is 78.1% nitrogen, 20.9% oxygen, and 0.934% argon by moles. What is the density of air at 22 °C and 760…?

Air consists of 78.1% nitrogen, 20.9% oxygen, and 0.934% argon by mole fraction. What is the density of air at a temperature of 22 °C and a pressure of 760 torr? Please assume ideal gas behavior for t...
3 answers 13
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Adonis Herman Sr.

Nov 22, 2024

An animal that has body parts that are arranged around a central point has: (1 point) bilateral symmetry. radial symmetry. asymmetry.

An animal with body parts arranged around a central point demonstrates which type of symmetry? Please choose the correct option: 1. Bilateral symmetry 2. Radial symmetry 3. Asymmetry Additionally,...
9 answers 14
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Mr. Leone Miller

Jan 24, 2025

Are insects animals?

My husband and I have an ongoing discussion about whether insects are considered animals. He argues that insects are not animals, while I maintain that they are. I understand that insects are not mamm...
10 answers 49
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Anonymous

Jan 13, 2025

Ascientific model must make a testable prediction. a scientific model must make a testable prediction.

A scientific model must make a testable prediction. I am 99% certain that this statement is true. Can anyone provide further insight or examples that support this claim?
4 answers 14
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Anonymous

Dec 03, 2024

At stp, both diamond and graphite are solids composed of carbon atoms. these solids have(1) the same crystal structure and same properties

At standard temperature and pressure (STP), both diamond and graphite are solids composed of carbon atoms. These solids exhibit (1) the same crystal structure and the same properties, (2) the same cry...
3 answers 34
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Anonymous

Jan 07, 2025

Attractive forces chemistry questions?

Choose all that apply to each question regarding the types of attractive forces in different types of crystals: Dipole-dipole forces, London dispersion forces, ionic bonds, hydrogen bonding, covalent...
3 answers 17
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Anonymous

Nov 28, 2024

Based upon the ph scale, a vegetable with a ph of 5.3 would be

Based on the pH scale, a vegetable with a pH of 5.3 would be classified as: a. ionic b. neutral c. acidic d. basic.
4 answers 56