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Lubov Fominskaja [6]
3 years ago
13

What do all viruses have in common? Choose more than one answer.

Chemistry
1 answer:
vitfil [10]3 years ago
7 0

Answer:

1, 3, 4, and 5

Explanation:

the number would be the dot order!

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What is the phase of water at 0.25 atm and 0°C?
seropon [69]
D.) as you can tell the temperature is the x axis while pressure (atm) is the y axis, so therefore you’d find (0,0.25) which gives u solid because its not near water or gas
5 0
2 years ago
What is the mass of carbon dioxide formed when 36g of carbon is burnt?<br> C+O2 -------&gt;C02
Anestetic [448]

Answer:

Mass = 132 g

Explanation:

Given data:

Mass of CO₂ formed = ?

Mass of C burnt = 36 g

Solution:

Chemical equation:

C + O₂    →    CO₂

Number of moles of carbon:

Number of moles = mass/molar mass

Number of moles = 36 g/ 12 g/mol

Number of moles = 3 mol

now we will compare the moles of carbon and carbon dioxide.

                C           :        CO₂

                 1           :         1

                3           :         3

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 3 mol × 44 g/mol

Mass = 132 g

7 0
3 years ago
Which of the following are physical properties of matter?
prisoha [69]
The physical properties of matter are going to be appearance,texture, density. hope that helped
8 0
4 years ago
The alchemical, medical, and technological traditions were precursors to chemistry. State a contribution that each made to the d
Kisachek [45]

Alchemy was a form of early chemistry that aimed to transmute base metals into gold and to create an elixir of longevity or eternal life.

Despite these connotations of the mythic and mystical, alchemical follow contend a crucial role within the evolution of contemporary science.

Historically, alchemy refers to each the investigation of nature and an early philosophical and religious discipline that combined chemistry with metal work. Alchemy additionally encompassed physics, medicine, astrology, mysticism, spiritualism, and art.

Chemistry in medicine:

Major contributions to health care have been made possible by chemistry. The development of new drugs involves chemical analysis and synthesis to form new compounds.

Chemistry contributes to the preparation of materials for surgery (sutures, artificial skin, and sterile materials). The sutures used in many surgeries today do not have to be removed, because they simply dissolve in the body after a period of time. Replacement blood vessels for heart and other types of surgery are often made of chemicals that do not react with the tissues, so they will not be rejected by the body and this was made possible with the help of the chemistry.

Chemistry in technologies:

The Iron Age, saw the prevalence of iron increase as the major metal of choice for cutting tools and weapons. Iron was slower to evolve as a material because it required higher temperatures to work the metal. This shift saw a change in smelting practices, improved furnace technologies, and also the development of forging, as opposed to the casting techniques used in the Bronze Age.

Now a days, in big industries, the machines which are made up of big metal sheets or metals, are given shape with the help of fire, by the process of Smelting. The industries tried to make plastics afterwards.

To know more about Alchemy, refer to this link:

brainly.com/question/5997100

#SPJ4

4 0
2 years ago
"An acid is a substance that forms hydrogen ions when dissolved in water." this is an example of-
ValentinkaMS [17]
Hmm. This is very unspecific but it could either be indicating the pH of the solution or just saying it is an aqeous solution.
5 0
3 years ago
Read 2 more answers
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