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ozzi
3 years ago
6

Which statement best describes SARS? SARS was an epidemic, but not a pandemic. SARS was a pandemic, but not an epidemic. SARS wa

s both a pandemic and an epidemic. SARS was neither a pandemic nor an epidemic
Chemistry
2 answers:
alexandr402 [8]3 years ago
7 0

Answer:

SARS was an epidemic, but not a pandemic.

Explanation:

It is correct to say SARS was an epidemic but not a pandemic.

  • An epidemic is an outbreak of infectious diseases which affects a group of people in a particular areas
  • A pandemic is a global outbreak of diseases that affects the total population of people over a wider range.

SARS outbreak occurred between 2002 - 2004 in China. It was localized to the People's republic and hence, an epidemic.

The recent outbreak of disease in 2020 on the other hand is a pandemic. The infectious disease had a global coverage.

sasho [114]3 years ago
4 0

Answer:

a

Explanation:

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When ice is melting, the heat being added causes:
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Explanation:

Adding heat can cause ice (a solid) to melt to form water (a liquid). Removing heat causes water (a liquid) to freeze to form ice (a solid). When water changes to a solid or a gas, we say it changes to a different state of matter. Even though the water's physical form changes, its molecules stay the same.

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A sample weighing 3.110 g is a mixture of Fe 2 O 3 (molar mass = 159.69 g/mol) and Al 2 O 3 (molar mass = 101.96 g/mol). When he
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Answer:

The mass fraction of ferric oxide in the original sample :\frac{723}{3110}

Explanation:

Mass of the mixture = 3.110 g

Mass of Fe_2O_3=x

Mass of Al_2O_3=y

After heating the mixture it allowed to react with hydrogen gas in which all the ferric oxide reacted to form metallic iron and water vapors where as aluminum oxide did not react.

Fe_2O_3(s)+3H_2(g)\rightarrow 2Fe(s)+3H_2O(g)

Mass of mixture left after all the ferric oxide has reacted = 2.387 g

Mass of mixture left after all the ferric oxide has reacted = y

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The mass fraction of ferric oxide in the original sample :

\frac{0.723 g}{3.110 g}=\frac{723}{3110}

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WHICH VIRAL REPRODUCTION CYCLE HAD THE VIRUS PUTTING ITS GENETIC MATERIAL INTO THE CELL
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When 3-methyl-1-pentene is treated with in dichloromethane, the major product is 1-bromo-3-methyl-2-pentene.
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Answer:

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