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RSB [31]
3 years ago
7

Which element has atoms with the largest atomic radius? a.rb b.cs c.sr d.ba?

Chemistry
1 answer:
allochka39001 [22]3 years ago
4 0
a because it's a hope I help you
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One or more substances changing into one or more substances is an example of a
lana [24]

Hello There!

This is called a "Chemical Change"

A chemical change is when the composition of a substance changes. There are many signs of chemical changes. When a chemical change occurs, you can see a change in color. When a new color is visible that means that a new substance has been created. There also is a new smell "odor" this hints that a new substance has been formed.

6 0
3 years ago
Describe the many different forms of energy involved with stretching and releasing a rubber band. What other processes are simil
Nadya [2.5K]

Answer:

Conversion of kinetic energy to potential energy (chemo mechanical energy)

In the state of rest, the rubber is a tangled mass of long chained cross-linked polymer that due to their disorderliness are in a state of increased entropy. By pulling on the polymer, the applied kinetic energy stretches the polymer into straight chains, giving them order and reducing their entropy. The stretched rubber then has energy stored in the form of chemo mechanical energy which is a form of potential energy

Conversion of the stored potential energy in the stretched to kinetic energy

By remaining in a stretched condition, the rubber is in a state of high potential energy, when the force holding the rubber in place is removed, due to the laws of thermodynamics, the polymers in the rubber curls back to their state of "random" tangled mass releasing the stored potential energy in the process and doing work such as moving items placed in the rubber's path of motion such as an object that has weight, w then takes up the kinetic energy 1/2×m×v² which can can result in the flight of the object.

Explanation:

5 0
3 years ago
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Convert 12 kcal to joules
miss Akunina [59]

Answer:

50241.6

Explanation

8 0
3 years ago
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Identify the intermediate in the halogenation of alkanes.a) Anionb) Cationc) Radicald) Dimer
Alex_Xolod [135]

Answer: Option C - Radical

Explanation:

A radical is a chemical specie carrying a lone electron. In the halogenation of alkanes: take Methane CH4 as the alkane, and Chlorine Cl as the halogen.

The step by step halogenation process is as follows:

CH4 + Cl2 --> CH3• + HCl + Cl•

CH3• + Cl2 --> CH3Cl + HCl

CH3Cl + Cl2 --> CH2Cl2 + HCl + Cl•

CH2Cl2 + Cl2 --> CHCl3 + HCl

CHCl3 + Cl2 --> CCl4 + HCl + Cl•

Chlorine molecule attack methane knocking off an hydrogen atom from it and forming a methyl radical (CH3•), that is subsequently attack by another chlorine molecule. This cycle repeats itself, until no hydrogen atom is available for substitution by the highly reactive chlorine radical.

Note: no cation or anion is formed in the halogenation process

3 0
3 years ago
What cell structure reminds me/you of hand sanitizer A. golgi apparatus B. endoplasmic reticulum C. cytoplasm
Zanzabum

Answer:

I think that it might be cytoplasm

Explanation:

I got this from google

Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. 

4 0
3 years ago
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