Answer: This isotope is oxygen-17.
Based on the chemical equation, to balance the given equation we should use 2 as a coefficients of HCl on reacatnt side of the reaction.
<h3>What is balanced equation?</h3>
Balanced chemical equations are those equation in which each entities are present in same amount on reactant side as well as on the product side of the chemical reaction.
Given chemical reaction is:
Zn + HCl → ZnCl₂ + H₂
In the above reaction equation is not balanced as number of chlorine and hydrogen atoms are not equal on both sides, so balanced equation will be:
Zn + 2HCl → ZnCl₂ + H₂
Hence we add 2 as a coefficient of HCl to balance the equation.
To know more about balance equation, visit the below link:
brainly.com/question/15355912
D. a satellite orbiting Earth
Answer:
B. first level consumers.
Explanation:
The first level consumers are also the primary consumers. They are the animals that depends or rely on plants to transform chemical energy into carbohydrates and sugar.
Primary consumers are mostly herbivores. They feed on plant matter by which they derive their nutrition. They have special enzymes that helps to convert plant materials into substances needed for their body.
So, the first level consumer takes plant matter and convert them into useful food materials for their own nutrition.
The second level consumers depend on the first level consumers for nutrition.
Answer : B). - 1.08 mol
Explanation :
I think question should be "<em>The moles of Na₃PO₄ produced from 3.24 moles of NaCl is</em>"
The balanced reaction is given as
(NH₄)₃PO₄ + 3NaCl → 3NH₄Cl + Na₃PO₄
The stoichiometric ratio between NaCl and Na₃PO₄ is 3 : 1.
Hence,
produced Na₃PO₄ moles = reacted NaCl moles / 3
= 3.24 mol / 3
= 1.08 mol