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zysi [14]
3 years ago
15

Why isn't energy ever truly destroyed? ​

Chemistry
2 answers:
lakkis [162]3 years ago
8 0

Answer:

In physics, the law of conservation of energy states that the total energy of an isolated system cannot change—it is said to be conserved over time. ... Energy can be neither created nor destroyed, but can change form; for instance, chemical energy can be converted to kinetic energy.

Explanation:

olchik [2.2K]3 years ago
5 0
The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. In essence, energy can be converted from one form into another.
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What is the molarity of 9.0 moles of NaCl dissolved in 15.0 liters if solution?
Leona [35]
Molarity= moles/Volume => 9/15 = 0.6 mol/L
6 0
3 years ago
The equilibrium constant, Kc , for the decomposition of COBr2 COBr2(g) ↔ CO(g) + Br2(g) is 0.190. What is Kc for the following r
charle [14.2K]

Answer:

2CO(g)+2Br_2(g)\rightleftharpoons 2COBr_2(g)

27.70 is K_c' for the reaction.

Explanation:

COBr_2(g)\rightleftharpoons CO(g) + Br_2(g)

The equilibrium constant of the reaction = K_c=0.190

The expression of equilibrium constant is given by :

K_c=\frac{[CO][Br_2]}{[COBr_2]}..[1]

2CO(g)+2Br_2(g)\rightleftharpoons 2COBr_2(g)

The equilibrium constant expression for above reaction can be written as:

K_c'=\frac{[COBr_2]^2}{[CO]^2[Br]^2}

K_c'=\frac{1}{(K_c)^2} ( from [1])

K_c'=\frac{1}{(0.190)^2}=27.70

27.70 is K_c' for the reaction.

7 0
4 years ago
What gas in the air is used by plants to make their own food? (2 points)
Varvara68 [4.7K]

Answer:

Carbon Dioxide

Explanation:

Carbon dioxide gets turned into oxygen

5 0
3 years ago
Read 2 more answers
write short notes on the following:1. Analytical chemist 2. Chemical engineer 3. Healthcare scientists 4. Forensic scientist 5.
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  5. Research scientists are responsible for designing, undertaking and analysing information from controlled laboratory-based investigations, experiments and trials. You could work for government laboratories, environmental organisations, specialist research organisations or universities.
  6. Toxicology is a scientific discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating exposures to toxins and toxicants.
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3 years ago
What is the order of decreasing ionization energy?
Hatshy [7]
Your answer would be 3!!

6 0
3 years ago
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