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Anna [14]
3 years ago
6

When a scientific theory has been tested and proved by the scientific community, it becomes a law. True or False

Chemistry
1 answer:
LekaFEV [45]3 years ago
7 0

Answer:

False

Explanation:

Because laws and theories are developed for different purposes, laws never become theories, and theories do not become laws.  

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Which statements are true about light waves? (Select all that apply.)
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Answer:

A C D I believe

Explanation:

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2 years ago
CO<br> +<br> -<br> 02<br> CO2<br> Balance the equation
poizon [28]

Answer:

2co+o2=2co2

Explanation:

co+o2=co2

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2co+o2=2co2

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5 0
2 years ago
If kerosene has a specific gravity of 0.820, what force will be exerted on the circular bottom of a cylindrical kerosene tank th
Svet_ta [14]

Answer:

F = 774146.534\,N

Explanation:

The pressure at the bottom of the tank is:

P_{bottom} = (0.820)\cdot (1000\,\frac{kg}{m^{3}})\cdot (9.807\,\frac{m}{s^{2}})\cdot (30\,ft)\cdot (\frac{0.305\,m}{1\,ft} )

P_{bottom} = 73581.921\,Pa

The force exerted on the circular bottom is:

F=(73581.921\,Pa)\cdot (\frac{\pi}{4} )\cdot [(12\,ft)\cdot (\frac{0.305\,m}{1\,ft} )]^{2}

F = 774146.534\,N

4 0
2 years ago
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elena55 [62]
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Which of the following is necessarily characterized by a covalent linkage?a. Base-pairing interactionb. Disulfide bondc. Hydroge
mr_godi [17]

Answer:

b. Disulfide bond

Explanation:

Covalent linkage or bonding is a type of bond in which electrons are shared between atoms in a compound or molecule. Each atom contributes to the shared electron.

This is the case of disulfide bonding i.e. S-S, in which two thiol groups (-SH) share electrons with one another. The process of oxidation between two cysteine (amino acid) molecules forms this bond. Hence, Disulfide bond is characterized by a covalent linkage.

6 0
3 years ago
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