Chemistry

Recently Asked Questions In Chemistry

Question
2. Perché dei compagni di Odisseo solo Eu-
riloco non cade nella trappola di Circe?
Answer

Euriloco era immune all'incantesimo di Circe perché era stato avvertito da Odisseo.

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Euriloco era stato avvertito da Odisseo di non bere il vino offerto da Circe, quindi era...
Question
Which of the following species are still common but not doing as well as biologists want?
OLesser Scaup and Steller s Eider
OSteller's Eider and Spectacled Eider
ONorthern Pintail and Spectacled Eider
Northern Pintail and Lesser Scaup
Answer

Northern Pintail and Lesser Scaup.

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Northern Pintail and Lesser Scaup are still common but their populations have been declining in recent years. Biologists are concerned about their declining...
Question
Question 10 of 10
Which two substances combine in a car's engine to provide energy?
O A. Carbon dioxide and water
O B. Carbon dioxide and oxygen
O C. Heptane and water
D. Heptane and oxygen
Answer

B. Carbon dioxide and oxygen

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In a car's engine, the combustion of fuel (usually gasoline or diesel) combines with oxygen from the air to produce energy. The combustion reaction produces...
Question
What is the primary source of energy for food chains in an ecosystem?
O decomposers
O producers
O consumers
• the sun
Answer

The sun.

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The primary source of energy for food chains in an ecosystem is the sun. This energy is used by producers, such as plants, to create food through...
Question
Structures that are simllar in different species and that have been inherited from a
common ancestor.
Answer

Homologous structures.

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Homologous structures are structures that are similar in different species and have been inherited from a common ancestor. These structures may have different functions in different...
Question
Which of the following is not a universal safety precaution control for HIV/AIDS?
Improper hand washing
b) Appropriate use of gloves
c) Disinfection using bleach solution
d) Appropriate handling of body fluids
Answer

a) Improper hand washing

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Universal safety precautions for HIV/AIDS include appropriate use of gloves, disinfection using bleach solution, and appropriate handling of body fluids. Improper hand washing...
Question
Besides inspiring a new generation of activists to continue fighting for equali
important impact did the Civil Rights Act of 1964 have on American society?
Answer

The Civil Rights Act of 1964 outlawed discrimination based on race, color, religion, sex, or national origin in employment, education, and public accommodations, leading to greater equality and integration in American society.

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The Civil Rights Act of 1964 was a landmark piece of legislation that had a significant impact on American society. The act outlawed discrimination based...
Question
2 Andromaca e il futuro
• Quale futuro Andromaca prospetta per sé? Quale per il marito?
3 Il rapporto tra Ettore e Andromaca
Answer

Andromaca prospetta un futuro di incertezza per sé e per il marito, ma il loro rapporto è forte e leale.

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Andromaca prospetta un futuro di incertezza per sé e per il marito, poiché entrambi son...
Question
11.The offspring of two chickens have 1 out of 4 chances of being white,
which is a recessive trait. Which cross could produce the probability of
such offspring?
* 4 points
O YVxvY
O vYx vy
• Yyx vy
• vxyy
Answer

Yyx vy

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The cross Yyx vy would produce offspring with a 1 in 4 chance of being white, which is a recessive trait. This is because the...
Question
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10. LINGUA E LESSICO E Alice si arrischiò ad assaggiarla
(rr. 123-124). Con quale parola, vicina nel signifi-
cato e coerente con il contesto, puoi sostituire la
parola si arrischiò?
A Si azzardò
Esitò
Rimandò
Provò
Answer

Si azzardò.

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"Si azzardò" è la parola più coerente con il contesto perché indica un'azione coraggiosa e risch...
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