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
kobusy [5.1K]
3 years ago
7

Write a balanced equation for the combination reaction described, using the smallest possible integer coefficients.

Chemistry
2 answers:
Masja [62]3 years ago
6 0

Answer:

H2(g) + I2(g) → 2HI(g)

Explanation:

Step 1: Data given

hydrogen gas = H2(g)

iodine gas = I2(g)

hydrogen iodide = HI(g)

Step 2: The unbalanced equation

H2(g) + I2(g) → HI(g)

Step 3: Balancing the equation

On theleft side we have 2x H (in H2), On the right side we have 1x H (in HI)

To balance the amount of H on both sides we have to multiply HI on the right by 2

By multiplying HI by 2, the amount of O on both sides is also equal. The equation is balanced.

H2(g) + I2(g) → 2HI(g)

Kazeer [188]3 years ago
4 0

Answer:

H2 + I2 —> 2HI

Explanation:

H2 + I2 —> HI

Now, let us balance the equation. This can be achieved by doing the following:

There are 2 atoms of H on the left side of the equation and 1atom on the right side. It can be balance by putting 2 in front of HI as shown below:

H2 + I2 —> 2HI

Now the equation is balanced as there are equal numbers of atoms of the different elements present on both sides of the equation.

You might be interested in
What is the pH of a solution with a<br> POH of 8.35?
Paha777 [63]

Answer: The pH of the solution is 5.65

Explanation:

The relationship between the pH and the pOH is that pH+pOH=14.

Given this, we can plug in the pOH and subtract that from 14.

14-pOH=pH\\14-8.35=5.65

I hope this helped! Pls give brainliest!! :)

3 0
2 years ago
If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper? 1.253 g 50.72 g 79
Helen [10]
1)we need a balanced equation: CuSO₄ + Zn ---> ZnSO₄ + Cu

2) we need to convert the grams of CuSO₄ to moles using the molar mass. 

molar mass CuSO₄= 63.5 + 32.0 + (4 x 16.0)= 160 g/mol

200.0 g CuSO_4 ( \frac{1 mol}{160 grams} )= 1.25 mol CuSO_4

3) convert moles of CuSO₄ to moles of Cu

1.25 mol CuSO_4 ( \frac{1 mol Cu}{1 mol CuSO_4} )= 1.25 mol Cu

4) convert moles of Cu to grams using it's molar mass.

molar mass Cu= 63.5 g/mol

1.25 mol (\frac{63.5 grams}{1 mol} )= 79.4 grams Cu

I did it step-by-step as the explanation but you can do all of this in one step. 

200.0 g CuSO_4 ( \frac{1 mol CuSO_4}{160 g} ) ( \frac{1 mol Cu}{1 mol CuSO_4} ) ( \frac{63.5 grams}{1 mol Cu} )= 79.4 grams Cu


4 0
4 years ago
Genetically determined characteristics
swat32

Eyes, height, hair, skin color,
6 0
4 years ago
Ultrasound is used to break up kidney stones. How do sound waves break up kidney stones?
dolphi86 [110]

Answer:

eswl uses shock waves to break kidney stones into small pieces that can more easily travel through the urinary tract.

Explanation:

hope this helps

4 0
3 years ago
50 extra if correct !!
leva [86]

Answer:

A.

Explanation:

the gradual movement of the continents across the earth's surface through geological time.

7 0
3 years ago
Other questions:
  • Consider the following two compounds made of different elements - sodium chloride (NaCl) and carbon dioxide (CO2). For each comp
    5·2 answers
  • A new element is discovered which has the following ionization energies: IE1 127 kJ/mol IE2 287 kJ/mol IE3 625 kJ/mol IE4 2651 k
    11·1 answer
  • How can you remove energy from matter?
    9·1 answer
  • If a dog has a mass of 21.5kg, what is his mass in the following units?
    7·1 answer
  • How many protons, neutrons, and electrons doe fluorine have?
    15·2 answers
  • Who is responsible for determining the manner of death?
    10·2 answers
  • What would be the pressure of a gas, at 101.3 kPa, if the temperature is lowered
    12·1 answer
  • In the clinical laboratory, testing to identify specific porphyrins is performed using Group of answer choices Fluorometric emis
    9·1 answer
  • A solution has pH of 9 what is it?​
    9·2 answers
  • Calculate the pH if:<br> [H+] = 9.2 x 10^-8 M
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!