Answer:
The same amount of atoms (3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms).
Explanation:
According to the law of conservation of mass, when a chemical reaction takes place there is no synthesis or degradation of matter, that is, <em>matter can be neither created nor destroyed</em>. It can only be transformed.
Therefore, in a <u>chemical reaction the atoms are conserved</u>. That means that the elements that in definite proportions are forming a compound, will reorganize to form new compounds, and <u>the amount and type of atoms of the products will be the same as the reactants</u>.
In summary, if the reactants in a chemical equation have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms, the products of the chemical equation will have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms as well.
Answer:
The correct answer is - it provided water, food, transportation, and excellent, fertile soil for growing food.
Explanation:
People of Egypt moved to the northern Nile river due to various reasons. In this region, the soil is very excellent and helps in growing crops as the soil is fertile due to the appropriate climate and water resources.
It is aso helps in selling and transporting the products as it was a trade route at the time. As it is known Egypt has almost no rainfall so the only way crops can get water is through the Nile river.
Answer:
Hydrochloric acid + sodium → sodium chloride + water
NaOH +HCl → H2O and NaCl
Explanation:
salt is a neutral ionic compound. Let's see how a neutralization reaction produces both water and a salt, using as an example the reaction between solutions of hydrochloric acid and sodium hydroxide. The overall equation for this reaction is: NaOH +HCl → H2O and NaCl.
Hey there!
Atomic number is the number of protons.
Atomic mass is the sum of protons and neutrons.
9 + 11 = 20
Your answer is B) The atomic number is 9 & the atomic mass is 20.
Hope this helps!