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GrogVix [38]
2 years ago
15

A sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°C. If the system is at dynamic equil

ibrium, which of these statements is true? The rate of freezing is equal to the rate of melting. The rate of freezing is greater than the rate of melting. The amount of ice is greater than the amount of water. The amount of ice is equal to the amount of water.
Chemistry
2 answers:
rjkz [21]2 years ago
7 0

Answer:The amount of ice is equal to the amount of water.

Explanation:

cv

Ugo [173]2 years ago
5 0
The amount of ice is equal to the amount of water
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At what temperature would the volume of a gas be 0.550 L if it had a volume of 0.432 L at –20.0 o C?
Gnom [1K]
The temperature that  would  the volume of a gas  be 0.550l  if  it  had a volume of 0.432 L  at  -20.0  c is calculated  using the Charles law formula

that is   v1/T1=V2/T2
V1=0.550 l
t1=?
T2= -20 c +273 = 253 K
v2= 0.432 l

by  making T1  the subject of the formula  T1= V1T2/V2


T1=  (0.55lL x253)/  0.432 l = 322.11 K  or  322.11-273 = 49.11 C
8 0
2 years ago
Read 2 more answers
What do you think life on earth would be like if chemistry had not been put to practical use?​
tatyana61 [14]

Answer:

if chemistry hadn't been put up to practical use, we wouldn't truly understand the reason why humans are humans like makes up humans (including other understandings of biology, etc) and we wouldn't be able to have the advancements we have today (vaccines, etc).

Explanation:

5 0
1 year ago
describe the energy inputs and outputs for the campfire. Use the law of conservation of energy to construct a valid qualitative
-Dominant- [34]

Answer:

The essence including its particular subject is outlined in the following portion mostly on clarification.

Explanation:

  • The energy throughout the campfire comes from either the wood's latent chemical energy until it has been burned to steam up and launch up across the campfire. The electricity generation for something like a campfire seems to be in the context including its potential chemical energy which is contained throughout the firewood used only to inflame the situation.
  • The energy output seems to be in the different types of heat energy radiating across the campfire, laser light generated off by the blaze, and perhaps a little number of electrical waves, registered throughout the firewood cracking whilst they combust throughout the blaze.

and,

chemical energy ⇒ heat energy + light energy + sound energy

6 0
2 years ago
Which species does not have a noble gas electron
lara31 [8.8K]
S, sulfur does not have a noble gas electron.
6 0
2 years ago
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The boron atom of BBr3 has
maks197457 [2]

Answer: The boron atom of BBr_3 has three hybrid orbitals

Explanation: Hybridization of the molecule can be calculated by:

Hyb=\frac{1}{2}(V+H-C+A)     .....(1)

where,

V =  number of valence electrons in the central metal atom

H = number of monovalent atoms

C = cationic charge

A = anionic charge

Here, electronic configuration of B = 1s^22s^22p^1

Number of valence electrons = 3

Number of monovalent atoms = 3

Cationic charge = 0

Anionic charge = 0

Putting these values in equation 1, we get

Hyb=\frac{1}{2}(3+3-0+0)=3

As the Hybridization is 3, which means that boron has 3 hybrid orbitals.

4 0
2 years ago
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