1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
polet [3.4K]
3 years ago
5

A 1.0-gram strip of zinc is reacted with hydrochloric acid in a test tube. The unbalanced equation below represents the reaction

.
Zn(s) + HCl(aq) ==>H2(g) + ZnCl2(aq)

Balance the equation in your answer booklet for the reaction of zinc and hydrochloric acid, using the smallest whole-number coefficients. [1]

________ Zn(s) + ________ HCl(aq) ==>________ H2(g) + ________ ZnCl2(aq)
Chemistry
2 answers:
Evgesh-ka [11]3 years ago
8 0

<u>Answer:</u> The balanced chemical equation for the reaction of zinc and hydrochloric acid is written below.

<u>Explanation:</u>

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

Every balanced chemical equation follows law of conservation of mass.

The balanced chemical equation for the reaction of zinc and hydrochloric acid follows:

Zn(s)+2HCl(aq.)\rightarrow H_2(g)+ZnCl_2(aq.)

By Stoichiometry of the reaction:

1 mole of zinc metal reacts with 2 moles of aqueous hydrochloric acid to produce 1 mole of hydrogen gas and 1 mole of aqueous zinc chloride solution.

Hence, the balanced chemical equation for the reaction of zinc and hydrochloric acid is written above.

Anika [276]3 years ago
6 0
The only coefficient is a 2 behind the reactant hydrochloride.
You might be interested in
When part of earths surface is tilted towards the sun what does it cause
Furkat [3]
Summer Solstice is what happens when part of the Earth's surface is tilted towards the sun..



7 0
3 years ago
Read 2 more answers
If a chemist has 2.3 moles of arsenic that has a molar mass of 74.92g/mol, which would be the best way to find out how many atom
scZoUnD [109]
Mulitply 2.3 by avogadros #
4 0
3 years ago
Read 2 more answers
Which will dissolve faster in water one gram cube of sugar or one gram of powder sugar?
krek1111 [17]
The  powder sugar because has more contact area 
8 0
3 years ago
Elements occur in a number of isotopic forms. In this problem, you will learn about the notation used to distinguish different i
alina1380 [7]

Answer:

  • <em>Number of protons, Z = 14</em>
  • <em>Number of neutrons, N = 14</em>

Explanation:

<u>1) About isotopes:</u>

<em>Isotopes</em> are different kind of atoms of the same element. Hence, they have the atomic number (Z), which is the number of <em>protons</em>, the same number of electrons (talking about to neutral atoms, not ions), and different <em>number of neutrons N).</em>

This is, it is the number of neutrons what distinguish different isotopes of an element.

<u>2) About the notation used to distinguish different isotopes:</u>

A superscript and a subscript, both to the left of the chemical symbol of the element, are used to <em>distinguish different isotopes</em>:

       A ←------------- This superscript tells the mass number of the isotope

           X ←--------- This is the chemical symbol of the element

      Z ←-------------- This subscript is the atomic number of isotope

In our case, the notiation for the isotope of silicon is:  ²⁸₁₄ Si

So, we have:

  • 28 is the mass number (A)
  • 14 is the atomic number (Z)
  • Si is the chemical symbol.

Now, you can answer the questions of the <em>part A</em>:

  • Number of protons: Z = 14
  • Number of neutrons N:

       mass number = number of protons + number of neutrons

                   A         =                 Z              +                N

⇒ N = A - Z = 28 - 14 = 14

In <u>conclusion</u>:

  • Number of protons, Z = 14
  • Number of neutrons, N = 14
5 0
3 years ago
What is the volume of an irregular object if the initial volume in the graduated cylinder is 3.50 ml and it rises to 7.50 ml aft
Margarita [4]
Answer is: the volume of an irregular object is 4,00 ml.
<span>Volume is the amount of space the object occupies and can be finded immersing it in water in a container with volume markings and than see how much the level of the container changes (goes up). 
</span>V(irregular object) = V(final volume) - V(initial volume).
V(irregular object) = 7,50 ml - 3,50 ml.
V(irregular object) = 4,00 ml.
8 0
3 years ago
Other questions:
  • How do i give the number of significant figures in 0.0037 mm
    13·1 answer
  • What is a stable and radioactive isotopes
    6·1 answer
  • The pH of a vinegar solution is 4.15. What is the H3O+ concentration of the solution?
    8·2 answers
  • Does sugar when dissolved form ions
    8·2 answers
  • Consider the reaction:
    7·1 answer
  • What were some of the “old” ideas that Isaac Newton learned in school?
    10·2 answers
  • Bromine, a liquid at room temperature, has a boiling point of 58C and a melting point of -7.2C. Bromine can be classified as a
    5·1 answer
  • Why is water important to cells
    5·2 answers
  • The order of the layers from the inside of the Earth outwards is:
    8·1 answer
  • If you have a room that is 14 feet wide, 20.5 feet long, with 10 foot ceilings. What is the total
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!