Explanation:
An atom is considered the basic unit of matter because it is the building block through which molecules, compounds and mixtures.
Although atoms contain some sub-atomic particles such as protons, neutrons and electrons, it is still regarded as the unit of matter.
- Subatomic particles gives an atom its essential property and features that helps to distinguish it from another.
- The number of the subatomic particles in an atom determines what an atom looks like.
- All the different subatomic particles are the same. An electron is always negatively charge. Protons are positively charge and neutrons have not charge.
- Atoms on the other hand are different from one another. Sodium is different from oxygen.
- This why it is easier to build on atoms and not on the particles it contains.
- The relationship between how the particles that makes up an atom interacts makes them unique and distinct.
- Atoms cannot be divided using chemical means
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Atomic theory brainly.com/question/1979129
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Toxic I believe is the right answers
Answer: A. Endothermic
Explanation:
In an endothermic reaction, heat is sucked in from the surrounding area by the reactants so that they may use it to react and form new products. This will therefore reduce the temperature in the said surrounding by the amount that the reaction needed.
This is what ice does when it melts. It sucks in the heat surrounding the area and then melts but leaves the area colder. For instance, putting ice in water ensures that the ice melts but because it sucked in the heat from the water to do so, the water gets colder as a result.
Answer:
Option C
Explanation:
Dipole moment being ac vector quantity has both magnitude and direction. All bonding forces have dipole moment ranging from partially positive to negative moment.
Net dipole moment is the dipole moment arising after summation of all the existing dipole moments. On the basis of dipole moment it is determined whether the molecule is polar or non polar.
Hence, option c is correct
Answer:
There are many different types of preservatives like Benzoic acid, Calcium Sorbate, Erythorbic Acid, Potassium Nitrate and Sodium Benzoate. Some act like antioxidants used for slowing down spoilage like Ascorbyl Palmitate, Butylated Hydroxy anisole (BHA) and Butylated Hydroxytoluene (BHT
