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
Gnom [1K]
3 years ago
10

When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coeffici

ents are:
aluminum oxide (s) + sulfuric acid (aq) ----> aluminum sulfate (aq) + water (l)

Does a reaction occur when aqueous solutions of ammonium carbonate and chromium(III) nitrate are combined?
Chemistry
1 answer:
maxonik [38]3 years ago
7 0

Answer:

1. Al2O3 + 3H2SO4 —> Al2(SO4)3 + 3H2O

The coefficients are: 1, 3, 1, 3

2. Yes, reaction occurs when ammonium carbonate and chromium(III) nitrate are combined.

The balanced equation for the reaction is given below:

3(NH4)2CO3 + 2Cr(NO3)3 —> 6NH4NO3 + Cr2(CO3)3

The coefficients are: 3, 2, 6, 1

Explanation:

1. The word equation is given below:

aluminum oxide(s) + sulfuric acid(aq) -> aluminum sulfate(aq) + water (l)

The above can be written as:

Al2O3 + H2SO4 —> Al2(SO4)3 + H2O

Now we can balance the equation as follow:

There are 3 atoms of SO4 on the right side and 1 atom on the left. It can be balance by putting 3 in front of H2SO4 as shown below:

Al2O3 + 3H2SO4 —> Al2(SO4)3 + H2O

There are 6 atoms of H on the left side and 2 atoms on the right. It can be balance by putting 3 in front of H2O as shown below:

Al2O3 + 3H2SO4 —> Al2(SO4)3 + 3H2O

Now the equation is balanced

The coefficients are: 1, 3, 1, 3

2. Yes, reaction occurs when ammonium carbonate and chromium(III) nitrate are combined.

The equation for the reaction is given below:

(NH4)2CO3 + Cr(NO3)3 —> NH4NO3 + Cr2(CO3)3

We can balance the equation above as follow:

There are 2 atoms of Cr on the right side and 1 atom on the left. It can be balance by putting 2 in front of Cr(NO3)3 as shown below:

(NH4)2CO3 + 2Cr(NO3)3 —> NH4NO3 + Cr2(CO3)3

Now, there are 6 atoms of NO3 on the left side and 1 on the right side. It can be balance by putting 6 in front of NH4NO3 as shown below:

(NH4)2CO3 + 2Cr(NO3)3 —> 6NH4NO3 + Cr2(CO3)3

Now, there are 2 atoms of NH4 on the left side and 6 atoms on the right. It can be balance by putting 3 in front of (NH4)2CO3 as shown below:

3(NH4)2CO3 + 2Cr(NO3)3 —> 6NH4NO3 + Cr2(CO3)3

Now the equation is balanced.

The coefficients are: 3, 2, 6, 1

You might be interested in
the characteristic ions present in water solutions of acids are A) oxide ions B) chloride ions C)hydronium ions D)nitride ions
Tanzania [10]

The characteristic ions present in the water solutions of acids are hydronium ions.

Option C

<u>Explanation:</u>

Ions are nothing but the oxidized or reduced state of any element in the periodic table. If an element loses electrons or if it gains electrons, then that element will be termed as ion instead of atoms. Water is composed of hydrogen [H⁺] ion and hydroxide ion [OH⁻] ion.

When water is mixed with acids, then H₂O will get combine with OH⁻ group leading to the formation of hyronium ion H₃O⁺ ion. So every acid when dissolved in water solution, they will be forming hydronium ion.

Thus, the characteristic ions present in water solutions of acids are hydronium ions.

4 0
3 years ago
Give the characteristic of a first order reaction having only one reactant.
Slav-nsk [51]

Answer:

As the first order reaction depends on (a uni-molecular reaction) the concentration of only one reactant.

And the rate law of the reaction of first order with a reactant A is:

rate = K[A]^-1

when K is the rate constant.

6 0
2 years ago
When the absolute value of the difference in electronegativity of two adjacent atom in a compound is 1, they are most likely bon
Morgarella [4.7K]

Answer:polar covalent bond

Explanation:

Compounds are formed ether by donating, receiving or sharing of electrons making the bonds between them to  be ionic, or covalent .

Now  according to the rule  of type of bond assignment due to electronegativity difference of atoms

---When the  electronegativity difference is less than 0.5,  the bond formed is nonpolar covalent.

---When   the  electronegativity difference is between 0.5 and 1.6, the bond is considered polar covalent

---When  the  electronegativity difference greater than 2.0, then the bond is ionic.

Therefore, When the absolute value of the difference in electronegativity of two adjacent atom in a compound is 1, they are most likely bonded by  polar covalent bond eg HCl bond , CCL4 bond

8 0
2 years ago
How many bromine atoms are present in 37.5 g of CH2Br2?
ella [17]
<span>37.8 g CH2Br2 X (1 mol CH2Br2 / 173.83 g) = 4.60X10^-3 mol CH2Br2

4.60X10^-3 mol CH2Br2 X (2 mol Br / 1 mol CH2Br2) X 6.02X10^23 atoms/mol = 5.54X10^21 bromine atoms</span>
5 0
2 years ago
HELP ME PLEASE!!!!
liq [111]

Answer:

1.D

2.A

3.C

4.A

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A similarity between the nervous system and the hormone-secreting system in humans is that they both?
    11·1 answer
  • Which of the following represents a compound? <br> A) H<br> B) H-3<br> C)H2O<br> D) O-16
    8·2 answers
  • Which pair of substances would most likely result in the production of a solid when reacting with a base? litmus and phenolphtha
    13·2 answers
  • How many particles are present in one mole of particles?
    6·1 answer
  • In run 1, you mix 7.9 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 3.13 mL of the 0.040 M SnCl2 in 2.0 M HCl so
    6·1 answer
  • How many 2º alkyl bromides, neglecting stereoisomers, exist with the formula c6h13br?
    12·1 answer
  • What was discovered first helium or samarium?
    11·1 answer
  • What is the organism that kills and eats other organisms for food called?
    15·2 answers
  • What is the source of genetic material in organisms that reproduce sexually?
    9·2 answers
  • The ratio of carbon-14 to carbon-12 in a piece of charcoal from a fire pit in an archaeological excavation is found to be 12.5%
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!