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yKpoI14uk [10]
3 years ago
7

Matter appears to be conserved in chemical reactions but not in nuclear reactions because:

Chemistry
2 answers:
Vlad [161]3 years ago
8 0
I think the best answer is B. Even this is the broadest case for the Conservation of matter and the one for Energy, the only way this can be applied is in nuclear rxns.
kozerog [31]3 years ago
5 0

Answer:  The law of conservation of mass-energy applies only to nuclear reactions

Explanation:   In nuclear reactions, mass and energy both are conserved but not in a simple manner.

The nuclear reactions are known to violate the law of conservation of mass because the rest mass is converted and appears in the form of kinetic energy.

But the toral energy remains the same.

Thus it can be said that the sum of mass and energy are conserved n the nuclear reactions.

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Write out the balanced equation for the following word equation. Use the proper state abbreviations for each of the reactants an
skad [1K]

Answer:

Li (s)  +   H₂O (l)  → 1/2 H₂ (g)  + LiOH (aq)

Explanation:

Lithium metal reacts with liquid water to form hydrogen gas and aqueous lithium hydroxide

2Li (s)  +  2H₂O (l)  → H₂ (g)  + 2LiOH (aq)

We can divide stoichiometry coefficients /2, to have the lowest stoichiometry.

3 0
3 years ago
The reactants in the above reaction are hydrogen and nitrogen. The product is ammonia. What is a balanced equation for that
Elanso [62]
N2 + 3H2 (arrow) 2NH3
4 0
2 years ago
What is the name of the isotope produced when Californium-251 emits an alpha particle?
Charra [1.4K]
<h3>Answer:</h3>

                 Curium-247 <em>i.e.</em> ²⁴⁷₉₆Cm

<h3>Explanation:</h3>

Alpha decay is given by following general equation,

                              ᵃₓA    →    ⁴₂He  +  ᵃ⁻⁴ₓ₋₂B

Where;

           A  =  Parent Isotope

           B  =  Daughter Isotope

           ᵃ  =  Mass Number

           ₓ  =  Atomic Number

Californium-251 is the parent isotope in our case and it has 98 protons (atomic number) and is given as,

                                                 ²⁵¹₉₈Cf

The alpha decay reaction of Californium-251 will be as,

                               ²⁵¹₉₈Cf     →     ⁴₂He  +  ²⁴⁷₉₆B

The symbol for B with atomic number 96 was found to be the atom of Curium (Cm) by inspecting periodic table. Hence, the final equation is as follow,

                               ²⁵¹₉₈Cf     →     ⁴₂He  +  ²⁴⁷₉₆Cm

3 0
2 years ago
Cellular Respiration is the process of what? A. Producing oxygen at the cellular level. B. The release of energy from food. C. B
matrenka [14]

Cellular Respiration is the process of the release of energy from food. Hence, option B is correct.

<h3>What is cellular respiration?</h3>

Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions.

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Hence, option B is correct.

Learn more about cellular respiration here:

brainly.com/question/13721588

#SPJ1

4 0
1 year ago
Please help! It's chemistry question
SashulF [63]
It looks like it is going by 25's so I would say 22.75 mL
3 0
3 years ago
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