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Wittaler [7]
3 years ago
6

All substances freeze at the same temperature, so they all have exactly the

Chemistry
1 answer:
Anastasy [175]3 years ago
6 0

Answer:

I think it would be false

Explanation:

All things have a unique freezing/melting point

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Explain how the following experiment shows the direction that gravity pulls an object, specifically showing that it does not pul
balu736 [363]

Answer:that cant happen it get smaller ever bounce it docent get higher the first bounce it the highest.

Explanation:

7 0
3 years ago
Which describes an atom that has fewer neutrons than protons and more electrons than protons?
Eva8 [605]

Answer:

Option d is correct = Negative ion

Explanation:

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus. Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg  and 1.674929×10⁻²⁷ Kg  respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The  umber of protons and electrons are always equal to make the atom electrically neutral and when an atom loses its valance electron the number of protons increases and thus positive charge increased and atom form cation.

When an atom gain electron negative charge increase because of more number of electron thus atom form negative ion or anion. For example,

Anion formation:

X + e⁻ → X⁻

Cation formation:

X → X⁺ + e⁻

Thus option d is correct option.

5 0
4 years ago
CAN SOMEONE PLEASE WRITE ME SHORT STORY FOR THIS. I'LL GIVE YOU BRAINLIEST. I PROMISE. 98 POINTS
denis-greek [22]

Answer & Explanation:

Kindly find the attached presentation.

Download pptx
6 0
4 years ago
Heat would best be transferred by conduction between
Maslowich
A stove and a copper pot
4 0
3 years ago
Read 2 more answers
A scientist places a large beaker containing 325 g of 50degree Celsius water into a microwave. He has to run the microwave for 3
Bingel [31]

The amount of energy absorbed by the 325g of water is 57,057J. Details about calorimetry can be found below.

<h3>How to calculate energy?</h3>

The energy absorbed by a mass of substance can be calculated using the following formula;

Q = mc∆T

Where;

  • Q = quantity of heat absorbed
  • m = mass of substance
  • c = specific heat capacity
  • ∆T = change in temperature

Q = 325g × 4.18 × (92 - 50)

Q = 57,057J

Therefore, the amount of energy absorbed by the 325g of water is 57,057J.

Learn more about energy at: brainly.com/question/3609481

#SPJ1

6 0
2 years ago
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