The correct answer is - B) 650.
The Red Sea is a sea that grows in size because it is widening all the time. The rate of the widening is 1.25 centimeters per year, so it is not something that can be easily seen during a normal human lifespan, but over a longer period of time it will have a much different shape, size, and influence in the region. It is located between the African and the Arabian tectonic plates as an elongated thin sea with a northwest-southeast direction.
The widening of the Red Sea is due to the movement of the tectonic plates. Africa is moving towards northwest, and that makes it slowly distance itself from the Arabian plate, thus opening more space for the Red Sea.
In order for the Red Sea to widen another 812.5 centimeters, will be required 650 years, and we can come to the result by simple dividing the required number of the width with the annual widening.
812.5 / 1.25 = 650.
Answer:
- <em>The calculation of quantities is chemical equations is called </em><u><em>stoichiometry.</em></u>
Explanation:
In a chemical reaction, as a result of the law of conservation of mass, reactants combine in fixed proportions to form the products.
Then, a chemical reaction is characterized by cuantitative relations between the atoms and compounds, which permit to make predictions on how much product can be obtained from certain amounts of reactants or how much of each reactant you would need to obtain a desired amount of product.
<em>Stoichiometry</em> is the use of the mole coefficients of a chemical equation to state ratios and set proportions, and, so, determine the number of moles or masses of reactants and products.
CaCl₂ + 2 AgNO₃ = Ca(NO₃)₂ + 2AgCl
Calcium Chloride + Silver Nitrate = Calcium Nitrate + Silver Chloride
<span>( double replacement )</span>
hope this helps!
Answer:
mass of one carbon atom = g
Explanation:
1 mole of carbon contains atoms of carbon
therefore mass of atoms of carbon is 12.011 grams. therefore mass of one carbon atom will be g
mass of one carbon atom = g