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3 years ago

Metals experience plastic deformation when _____.

1 answer:

3 0

Metals experience plastic deformation when a specific amount of pressure and temperature is applied to them. Most metals have low specific heat. Because of their low specific heat, they easily get hot when heat is applied to them.

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30. How many types of chemical reactions are there?

Nadusha1986 [10]

Answer:

B. Five

Hope this helps........

8 0

3 years ago

Read 2 more answers

The temperature of evaporation is much higher for water than for alcohol. Without knowing more about the chemistry of alcohol, w

Valentin [98]

Answer:

Fewer hydrogen bonds form between alcohol molecules. As a result, less heat is needed for alcohol molecules to break away from solution and enter the air.

Explanation:

Hydrogen bonding is a kind of intermolecular interaction that occurs when hydrogen is bonded to a highly electronegative atom.

Both water and alcohols exhibit hydrogen bonding. However, alcohols exhibit fewer hydrogen bonds than water.

As a result of this, the temperature of evaporation is much higher for water than for alcohol because hydrogen bonds hold water molecules more closely than alcohol molecules are held.

8 0

2 years ago

Which atom, selenium (Se) or Arsenic (As), has the higher electron affinity and why?

IrinaVladis [17]

Answer:

5. Selenium, because it does not have a stable, half-filled p subshell and adding an electron does not decrease its stability.

Explanation:

Electron affinity is the amount of energy released when an isolated gaseous atom accepts electron to form the corresponding anion.

Selenium:-

The electronic configuration of the element is:-

$[Ar]3d^{10}4s^24p^4$

Arsenic:-

The electronic configuration of the element is:-

$[Ar]3d^{10}4s^24p^3$

The 4p orbital in case of arsenic is half filled which makes the element having more stability as compared to selenium.

Thus, selenium has higher electron affinity because adding electron does not decrease the stability as in case of arsenic.

8 0

3 years ago

If we wish to prepare 250. mL of 0.200 M BaCl2 solution, how much solid BaCl2 is needed?

n200080 [17]

Answer:

10.4g

Explanation are in the Picture

8 0

2 years ago

Which of kbr or ch3br is likely to have the higher normal boiling point?

allsm [11]

Answer:

KBr

Explanation

KBr is an ionic compound which have very high BP since they exist as 3D crystals

Methyl Bromide, CH3Br. is a covalent compound which have low BP since they exist as individual molecules

8 0

2 years ago