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nordsb [41]
2 years ago
8

how can the temperature of a substance remain the same even if the substance is absorbing thermal engergy

Chemistry
1 answer:
olchik [2.2K]2 years ago
8 0
When it changes phases energy is needednto break down the bonds so that is can change state from one phase to another.
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If you toward the right of the periodic table is it harder or easier to remove valence electrons?​
attashe74 [19]

Answer:

harder

Explanation:

3 0
3 years ago
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What is the number of electrons and protons can be seen in this atom?
pochemuha

Explanation:

the number of electrons = 8

and protons = 8 can be seen in this atom

8 0
3 years ago
Determine the molar solubility of pbso4 in pure water. ksp (pbso4) = 1.82 x 10-8.
Misha Larkins [42]
Use the ICE table approach as solution:

           PbSO₄   --> Pb²⁺ + SO₄²⁻
I             -                 0          0
C           -                +s         +s
E           -                  s          s

Ksp = [Pb²⁺][SO₄²⁻]
1.82×10⁻⁸ = s²
Solving for s,
s = <em>1.35×10⁻⁴ M</em>
5 0
3 years ago
A helium filled ballon had a volume of 8.50 L on the ground at 20.0 C and a pressure of 750.0 Torr. After the ballon was release
Marrrta [24]

Answer:

V_2=12.1L

Explanation:

Hello!

In this case, according to the given data of volume, pressure and temperature, it is possible to infer this problem can be solved via the combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

Thus, regarding the question, we evidence we need V2, but first we make sure the temperatures are in Kelvins:

T_1=20+273=293K\\\\T_2=-40+273=233K

Then, we obtain:

V_2=\frac{P_1V_1T_2}{T_1P_2}\\\\V_2=\frac{0.987atm*8.50L*233K}{293K*0.550atm}\\\\V_2=12.1L

Best regards!

5 0
2 years ago
Which of the following is true concerning the reaction below?
levacccp [35]
Right answer is option d that o is oxidized.
5 0
3 years ago
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