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3 years ago

GIVE ME ANSWERS

Chemistry

2 answers:

Shalnov [3]3 years ago

6 0

Answer:

uh.. How many do you want done??

Explanation:

tensa zangetsu [6.8K]3 years ago

3 0

I’m gonna give answers that I’m only 100% sure of, and maybe suggest answers too

9. Neutrons
10. Protons and Neutrons
12. Atomic Mass / Mass Number
13. Little Boy over Hiroshima, Japan.
14. Spontaneous fission
15. Alpha decay
17. Marie Curie
19. Nuclear fission
20. Gamma rays
21. Atomic number

I’d probably know more of these if I paid attention more in my lessons/studies IMO, but here’s what I know 100% for those answers!

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1.a)How many types of particles are formed when a strong alkali is dissolved in water??

sveticcg [70]

Answer:

I didn't know how to explane it

but this should help you get your answer

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2 years ago

NaCl + H2SO4 ---> Na2SO4 + HCl<br> Balance the double replacement chemical reaction.

vlada-n [284]

Answer:

2NaCl + H2SO4 ----> Na2SO4 + 2HCl

Explanation:

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2 years ago

Read 2 more answers

Thermal energy is measurement of what type of molecular energy? *

Rama09 [41]

Answer:

Kinetic energy!

Explanation:

It measures the average kinetic energy of the molecules of a substance in degrees Fahrenheit (F) or Celsius (C).

Have a good day!!

5 0

2 years ago

Please Help!! I WILL MARK BRAINLIEST IF CORRECT!! What type of reaction is shown below?

Vlad1618 [11]

Answer:

C) exothermic

Explanation:

The given reaction is exothermic.

N₂ + 3H₂ → 2NH₃ + ENERGY

when energy is released the reaction is exothermic and when energy is written on left side with reactant it means energy is added and reaction is endothermic.

Exothermic reaction:

The type of reactions in which energy is released are called exothermic reactions.

In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.

For example:

Chemical equation:

C + O₂ → CO₂

ΔH = -393 Kj/mol

it can be written as,

C + O₂ → CO₂ + 393 Kj/mol

8 0

2 years ago

How might you think it is possible to convert from moles to particles or grams to particles?

nevsk [136]

Explanation:

To convert moles to particles or grams to particles, let us have a firm understanding of what a mole is.

A mole is the unit of measuring quantity of particles.

It is the amount of substance that contains the Avogadro's number of particles.

The particle can be atoms, molecules, formula units, electrons, protons, neutrons, etc.

So, to convert from moles to particles;

1 mole of a substance contains 6.02 x 10²³ particles

To convert from grams to particles;

First convert to moles;

number of moles = $\frac{mass}{molar mass}$

So, 1 mole of a substance contains 6.02 x 10²³ particles

4 0

2 years ago