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3 years ago

Which of the following best describes the structure of a carbohydrate?

Chemistry

2 answers:

Nina [5.8K]3 years ago

6 0

Answer:

Explanation:

B- is dna related

C i dunno

and d is about protein so that leaves A

pentagon [3]3 years ago

5 0

The answer would be a

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Give two significant consequences of the Copernican Revolution!! PLEASE HELP! NEED ANSWER NOW!

Marina CMI [18]

Hi !
1.the theological perspective of man's dominance in a dominant world was shown to be no longer tenable.
2. Heliocentricity uprooted the theological doctrine that the universe revolved around Man as the paramount and most glorious end-result of Creation, with the Sun, the Stars, the other Planets and the whole Universe .

Hood it helps and have a wonderful day!

8 0

4 years ago

Read 2 more answers

77 grams of an unknown metal at 99ᵒC is placed in 225 grams of water which is initially at 22ᵒC. The water is inside a 44 gram a

BigorU [14]

Answer:

The specific heat capacity of the unknown metal is C = 0.6991 J/g°C = 0.1671 cal/g°C

Explanation:

Heat lost by the unknown metal is equal to the heat gained by the water and aluminium cup.

Given,

Mass of unknown metal = 77 g

Initial Temperature of unknown metal = 99°C

Mass of water = 225 g

Initial Temperature of water = 22°C

Mass of Aluminium cup = 44 g

Specific heat capacity of Aluminium cup = 0.22 cal/gᵒC = 0.92048 J/g°C

Final temperature of the setup = 26°C

Note that, specific heat capacity of water = 4.186 J/g°C

Let the specific heat of the unknown metal be C

Heat lost from the unknown metal

= (77)(C)(99 - 26) = (5,621C) J

Heat gained by water

= (225)(4.186)(26 - 22) = 3,767.4 J

Heat gained by Aluminium cup

= (44)(0.92048)(26 - 22) = 162.00448 J

Heat lost by unknown metal = (Heat gained by water) + (Heat gained by Aluminium cup)

5621C = 3,767.4 + 162.00448 = 3,929.40448

5621C = 3,929.40448

C = (3,929.40448 ÷ 5621) = 0.6991 J/g°C

C = 0.6991 J/g°C = 0.1671 cal/g°C

Hope this Helps!!!

6 0

3 years ago

Read 2 more answers

When an ionic compound is created, energy is _________when creating the cation, energy is usually _______ when creating the anio

Alchen [17]

Answer:

Absorbed

Released

Explanation:

The formation of a cation is an endothermic process because energy must be absorbed in order to remove an electron from an atom.

Similarly, energy is evolved when an electron is added to an atom to form a negative ion.

The formation of an ionic compound is an exothermic process. Since ionic compounds are more stable than the individual ions separated by a distance, the excess energy of the isolated ions is evolved when the ionic compound is formed.

3 0

3 years ago

Turning milk into plastic easy

Kaylis [27]

You are not belive that many years ago approximate in 1900 century the people made plastic my milk this plasticity then use for making ornaments beads jewelry buckls pens and many more decorative things.

Process.

Take a thermos and add one cup of milk and heat it after heating it add 3,4 spoon of vinagar and place it aside for sometime until you will see the milk turns to plastic like shape this was very useful method for making plastic.

4 0

4 years ago

What is the name of IBr4?<br> And is it covalent or ionic?

BlackZzzverrR [31]

Answer: The name of the $IBr_4$ is Iodine tetrabromide and it is a covalent compound.

Explanation:

Inter-halogen compounds are compounds which composed of two different halogen atoms. For example ; $ICl_3,IF_5$ etc.

The naming is done by first writing the central atom symbol's name followed by the prefix corresponding to the number of atoms of another halogen atom like: Mono for 1, di ,for 2 tri for 3, tetra for 4 , penta for 5 etc. After this name of the another halogen is written with suffix 'ide' in the end.

The name of the $IBr_4$ is Iodine tetra bromide.

In halogen compounds, the difference in electronegativities is not so large due to which they form covalent compounds by the means of sharing the electrons. Hence the Iodine tetrabromide covalent compound.

8 0

3 years ago