Total number of atoms = 5
<h3>Further explanation
</h3>
The formula of a compound shows the composition of the constituent elements
CaCO₃ is composed of 3 types of atoms, namely Ca, C and O
The amounts of each of these atoms in the compound CaCO₃:
Then total number of atoms :
<u>Answer:</u> The correct answer is option B. electron.
<u>Explanation:</u>
There are 3 subatomic particles:
- Electrons: They carry negative charge and are present in orbits around the nucleus of an atom.
- Protons: They carry positive charge and are present inside the nucleus of an atom
- Neutrons: They does not carry any charge and are present inside the nucleus of an atom.
An atom forms an ion, when it looses or gains an electron.
- When an atom looses electron, it form a positive ion known as cation.
- When an atom gains electron, it form a negative ion known as anion.
Hence, the correct answer is option B. electron.
All they do is simply expand when you inhale and contract when you exhale.
Answer:
Write the experimental procedure like a step-by-step recipe for your science experiment. A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly. Often it includes a sketch of how to set up the experiment. The directions may be numbered to be sure they are done in the correct order.
Explanation:
Answer:
Explanation:
You calculate the energy required to break all the bonds in the reactants.
Then you subtract the energy needed to break all the bonds in the products.
CH₃CH₂OH + 3O₂ ⟶ 2CO₂ + 3H₂O
Bonds: 5C-H 1C-C 1C-O 1O-H 3O=O 4C=O 6O-H
D/kJ·mol⁻¹: 413 347 358 467 495 799 467