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
irinina [24]
3 years ago
10

5x-13 =12 write description that represents the equation

Chemistry
2 answers:
eduard3 years ago
7 0

Answer:

5

Explanation:

Mary had 5 dollars she owe her friend Mia 13 dollars but she didn't have enough. so multiply how much she has to give to mia

KiRa [710]3 years ago
3 0

Answer:

x = 5

Because 12 + 13 = 5x

25 = 5x

x = 5

You might be interested in
PLEASE HELP!<br><br> what are the steps that occur during the combustion of hydrogen?
Softa [21]

Answer:

Explanation:

Combustion releases energy in a single step in the form of light and heat. Whereas in respiration, energy is released in steps and is stored in the form of ATP.

5 0
4 years ago
The following data was collected for the formation of ammonia (NH3) based on the following overall reaction: N2 + 3H2 = 2NH3 N2
notsponge [240]

Answer :  The unit for the rate constant in the rate law for the formation of ammonia is, M^{-2}min^{-1}

Explanation :

Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

For the given chemical equation:

N_2+3H_2\rightarrow 2NH_3

Rate law expression for the reaction:

\text{Rate}=k[N_2]^a[H_2]^b

where,

a = order with respect to N_2

b = order with respect to H_2

Expression for rate law for first observation:

0.0021=k(0.10)^a(0.10)^b ....(1)

Expression for rate law for second observation:

0.0084=k(0.10)^a(0.20)^b ....(2)

Expression for rate law for third observation:

0.0672=k(0.20)^a(0.40)^b ....(3)

Dividing 2 by 1, we get:

\frac{0.0084}{0.0021}=\frac{k(0.10)^a(0.20)^b}{k(0.10)^a(0.10)^b}\\\\4=2^b\\b=2

Dividing 3 by 1 and also put value of b, we get:

\frac{0.0672}{0.0021}=\frac{k(0.20)^a(0.40)^2}{k(0.10)^a(0.10)^2}\\\\2=2^a\\a=1

Thus, the rate law becomes:

\text{Rate}=k[N_2]^a[H_2]^b

\text{Rate}=k[N_2]^1[H_2]^2

Now, calculating the value of 'k' by using any expression.

0.0021=k(0.10)^1(0.10)^2

k=2.1M^{-2}min^{-1}

The value of the rate constant 'k' for this reaction is 2.1M^{-2}min^{-1}

That means, the unit for the rate constant in the rate law for the formation of ammonia is, M^{-2}min^{-1}

7 0
4 years ago
In a bulleted list, why is it important to have accurate and precise graphs that
nasty-shy [4]

The reason being is because it help you better understand what is going on on the graph and help you answer the questions on the graph. hope this helps:)

4 0
4 years ago
Read 2 more answers
Balance this chemical equation. Choose "blank" for the box if no other coefficient is needed. Writing the symbol implies "1." H2
ololo11 [35]

4H202->2H2O+O2

Hope this helps mate good luck on whatever ur doing

6 0
3 years ago
Read 2 more answers
3. The density of ethanol is 0.789 g/mL. How many grams of ethanol should be mixed with 225 mL of water to make a 4.5% (v/v) mix
yan [13]

Answer:

I don't know what to say sorry

3 0
3 years ago
Other questions:
  • Sunspots sit on the sun’s
    14·1 answer
  • if an atom has two additional valence electrons than the original element has, what would be the charge of the atom
    14·1 answer
  • Bobby found that water has a high boiling point and concluded this was because water intermolecular forces. Based on the data, i
    9·1 answer
  • For wach of the following cases, state whether the density of the object increases, decreases, or remains the same:
    5·1 answer
  • When a piece of metal mass of 54.52 g is dropped into a graduated cylinder containing 23.44 mL of water, the water level rises t
    7·1 answer
  • Find the frequency of a wave with a period of 0.5 seconds.
    13·1 answer
  • You are testing two different household solutions with your cabbage indicator,
    8·2 answers
  • 3. An air mass that is cool and dry.
    12·2 answers
  • What are the blanks the missing blanks?
    10·1 answer
  • Identify the products of the reaction between mercury(ii) sulfate and titanium(ii) nitrate.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!