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
Dominik [7]
2 years ago
14

Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()zn

()hcl → ()zncl2 ()h2
Chemistry
1 answer:
Bingel [31]2 years ago
8 0

Based on the chemical equation, to balance the equation we use 2 as a coefficients of HCl on left hand side of reaction.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equation in which each entities are present in same amount on left side as well as on the right side of the chemical reaction.

Given chemical reaction is:

Zn + HCl → ZnCl₂ + H₂

Above reaction is not balanced equation as number of chlorine and hydrogen atoms are not same, 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/26694427

You might be interested in
If an object has a volume of 45 cm^3 what is the volume in ml?
AlexFokin [52]

Answer:

The answer is

<h2>45 mL</h2>

Explanation:

To convert the volume of an object from cm³ to mL we use the conversion

<h3>1 cm³ = 1 mL</h3>

From the question

If 1 cm³ = 1 mL

Then 45 cm³ = 45 mL

Hope this helps you

3 0
3 years ago
Which of the following molecules has the same empirical formula as glucose (C6H1206)
timama [110]

Answer:

ethanoic acid

Explanation:

as it also contains carbon dioxide water and oxygen as glucose

hope it helps you

please mark me as brainlist

4 0
3 years ago
Read 2 more answers
There are 4 types of biomes. FALSE
Rzqust [24]
False there are actually 5 types of biomes
6 0
3 years ago
Read 2 more answers
How many moles of Cl in 38.5 mol of CCl2F2?
Gennadij [26K]

Answer:

77 moles

Explanation:

The given chemical compound is CCl2F2 is called Dichlorodifluoromethane. In CCl2F2, we have:

one mole of a Carbon atom.

two moles of Chlorine atom; &

two moles of Fluorine atom.

Given that one mole of Chlorine = 38.5 moles.

Then, two moles will be:

= 2 × 38.5 moles

= 77 moles

5 0
2 years ago
We can also use the equation for enthalpy change for physical phase changes. Consider the phase change H2O(l) → H2O(g). Calculat
VLD [36.1K]

Answer: The value of enthalpy of the given reaction is 44.000 kJ/mol , that is energy is supplied to water to change into water vapors

Explanation:

H_2O(l)\rightarrow H_2O(g),\Delta H_{rxn}=?

Enthalpy of formation of water in liquid state,\Delta H_{f,H_2O(l)}=-285.820 kJ/mol

Enthalpy of formation of water in gaseous state,\Delta H_{f,H_2O(g)}=-241.820 kJ/mol

\Delta H_{rxn}=\sum \Delta H_f \text{of products}-\sum \Delta H_f \text{of reactants}

\Delta H_{rxn}=(-241.820 kJ/mol)-(-285.820 kJ/mol)=44.000 kJ/mol

The value of enthalpy of the given reaction is 44.000 kJ/mol, that is energy is supplied to water to change into water vapors.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Classify these structures as hemiacetal, acetal, or other.
    8·2 answers
  • Explain the·relationship among atoms, elements, and compounds.
    6·1 answer
  • Draw the curved arrow mechanism for the addition of HCN in water with NaOH to heptan-4-one to give the corresponding cyanohydrin
    6·1 answer
  • Which element or elements are unbalanced in this equation?
    7·1 answer
  • Which answer choice best describes why the results of Ernest Rutherford's gold foil experiment led him to propose the concept of
    12·2 answers
  • Which pair of elements will form an ionic bond?
    15·1 answer
  • How many moles of oxygen atom are there in 0.5 moles of Ca(ClO3) 2?
    14·1 answer
  • How many moles of OH−(aq) (hydroxide ions)are present in the balanced redox reaction?
    8·1 answer
  • PLEASE HELP CHEMISTRY WORK number 15
    15·1 answer
  • If the radius of a coin is 14 cm, What is surface area?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!