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iVinArrow [24]
3 years ago
14

Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.

Chemistry
2 answers:
liberstina [14]3 years ago
8 0

Answer:

A

Explanation:

I would say A because the sun makes energy right so if you are looking for an arrow or arrows I would say A I hope this helps!! and have a great day or night

Vlada [557]3 years ago
3 0

Answer:

A and E

Explanation:

the other guy was correct but E also demonstrate a conservation of mass and energy.

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Yo I need help with 1 and 2
nikitadnepr [17]

Answer:

1-

A) H2O        B) HCO3-

2-

A) NH3         B) SO3-2

Explanation:

8 0
3 years ago
Can someone please help me fill this out?​
Mamont248 [21]
The states of matter is solid,liquid and gas & you go from there.
6 0
3 years ago
Which term is defined as the sum of protons and neutrons in an atom?.
nata0808 [166]

Answer:

mass number

Explanation:

yeah mass number is the total of protons and neutrons

for example carbon has 12 proton and 12 neutrons therefore it's mass number is 24

i hope this is what you're looking for

5 0
2 years ago
It requires 334 kJ of heat to melt 1 kg of ice. The largest known iceberg had a volume of about 3.1 x 1013 m³. How much heat was
umka21 [38]

The  amount of heat required to melt the iceberg at 9.58 * 10¹⁸ kJ.

<h3>What is the amount of heat required to melt an iceberg that has a volume of about 3.1 x 1013 m³?</h3>

The heat required to melt a unit mass of ice is known as the latent heat of fusion.

The latent heat of fusion of ice of 1 kg= 334 kJ of heat

Mass of iceberg = 3.1 x 10¹³ m³ * 917 kg = 2.8427 * 10¹⁶ kg

Amount of heat required = 2.8427 * 10¹⁶ * 334 = 9.58 * 10¹⁸ kJ.

Therefore, the amount of heat required to melt the iceberg at 9.58 * 10¹⁸ kJ.

Learn more about latent heat of fusion at: brainly.com/question/87248

#SPJ1

8 0
2 years ago
Isotopes of an element have Select one: a. the same atomic number and same atomic weight. b. the same atomic number but differen
Levart [38]

Answer:

Option B same Atomic number and Different Atomic weight

Explanation:

Isotope are those inwhich no of protons (Atomic number) is same and mass number (A=n+Z) is different

Examples: Cl-35& Cl-37

And O-16& O-18

And option C corresponds to Isobars with same mass number and different atomic number.

8 0
3 years ago
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