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Vinvika [58]
3 years ago
8

During an endothermic reaction, heat is

Chemistry
2 answers:
BARSIC [14]3 years ago
3 0

Answer:

Absorbed during the above reaction.

Explanation:

It is lowering the temperature of the reaction mixture, and thus the reaction flask feels cold.

IRINA_888 [86]3 years ago
3 0

Answer:

Endothermic reaction: absorbs heat from its surroundings.

Explanation:

"Endo" means inside.  "Thermic" refers to heat.

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The quantum numbers of six electrons are given bellow .Arrange them in order to increasing energies. (a) n= 4,l =2, m= -2, s= -1
krek1111 [17]

Answer:

e< d< b< c=f< a

Explanation:

Quantum numbers refers to values that exactly describe the energy of electrons within an atom or a molecule. Electrons are known to possess a set of four quantum numbers used in describing the energy state of such electron. These quantum numbers are solutions to the Schrödinger wave equation for the hydrogen atom.

In describing any electron within the atom, the relevant set of four quantum numbers are: principal quantum number (n), orbital, azimuthal, subsidiary or angular momentum quantum number (l), magnetic quantum number (ml), and spin quantum number (ms).

In the arrangement above, the electrons are arranged in order of increasing energy. Each arrangement of quantum numbers corresponds to a particular energy state of the electron.

5 0
3 years ago
A gas occupies 1.56L at 1.00 atm. What will be the volume of this gas if the pressure becomes 3.00 atm
noname [10]
Volume= 0.52 L

P₁V₁=P₂V₂

P₁= 1.00 atm
V₁= 1.56 L
P₂= 3.00 atm
V₂= x

(1.00)(1.56)= 3x
8 0
3 years ago
Which of the following sentences uses commas correctly?
lisabon 2012 [21]
The first choice is correct. That’s because it uses the comma to pause the sentence, so the statement and question fit together
7 0
3 years ago
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How does the density and distribution of your “stars” change as the balloon expands?
Anna35 [415]

Answer:

The Universe is constantly expanding and as it expands the stars and objects in space move farther apart, just like the points on the balloon when air is blown into it. Density and distribution of "stars" as the balloon expands because when volume increases the density will increase.

Hope this Helps

3 0
3 years ago
Which element is oxidized in the following reaction Mn²⁺ + 2 K → Mn(s) + 2 K⁺ ?
denis23 [38]
Potassium is oxidized (k)
Leo ger is the nuemonic
- loss electrons = oxidized
- gain electrons = reduced

You can see K gains a positive charge so it is safe to assume it lost some (negatively charged) electrons
3 0
3 years ago
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