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
Gelneren [198K]
2 years ago
13

Please help Show your work

Chemistry
1 answer:
Yuliya22 [10]2 years ago
6 0

Answer:

21

Explanation: 2+1=21

You might be interested in
200.0 mL OF A 5.10 M solution are diluted to 500.0 mL. What is the concentration of the resulting solution? *
erastova [34]

Answer:

Concentration of the resulting solution = 2.04 M

Explanation:

<u>Data:</u>

M1 = 5.10 M

V1 = 200.0 mL

V2 = 500.0 mL

M2 = ?

By modifying the volume of solution, keeping the amount of solute constant, the concentration changes. To perform the calculations, the equation will be:

M1*V1=M2*V2

Where M1 is the initial concentration of the solution, M2 the final concentration and V is the value of the volumes of the initial and final solution.

Clearing the value of M2 from the equation and replacing the values ​​we have:

M2=\frac{M1*V1}{V2} =\frac{5.10M*200mL}{500mL} =2.04M

3 0
4 years ago
Read 2 more answers
Examine the given reaction. NH4NO3(s) → NH4+(aq) + NO3–(aq) ΔH° = 25.45 kJ/mol ΔS° = 108.7 J/mol·K Which of the given is correct
kobusy [5.1K]

Answer:

B)−6,942 J /mol

Explanation:

At constant temperature and pressure, you cand define the change in Gibbs free energy, ΔG, as:

ΔG = ΔH - TΔS

Where ΔH is enthalpy, T absolute temperature and ΔS change in entropy.

Replacing (25°C = 273 + 25 = 298K; 25.45kJ/mol = 25450J/mol):

ΔG = ΔH - TΔS

ΔG = 25450J/mol - 298K×108.7J/molK

ΔG = -6942.6J/mol

Right solution is:

<h3>B)−6,942 J /mol</h3>

8 0
3 years ago
What is the correct formula and charge for the polyatomic ion called acetate
DedPeter [7]

Answer:

5.03 Naming Compounds that contain Polyatomic Ions

Explanation:

Trust me.

6 0
2 years ago
Find the percentage composition for iron in the following compound Fe2(CO3)3
schepotkina [342]
14.285 % is the answer maybe but I am not sure
5 0
3 years ago
The products of a chemical reaction have different properties than the reactants.
Marta_Voda [28]

Answer:

Explanation:

The products of a chemical reaction have different properties than the reactant because they underwent a chemical change by definition of a chemical reaction. The products are new combinations atoms forming different molecules.

5 0
2 years ago
Other questions:
  • Which statement accurately describes why air pressure decreases as altitude increases? As you increase altitude the temperature
    7·1 answer
  • In what type of environment would you most likely find Fish Species 1? Explain your answer.
    5·2 answers
  • Is the autoionization of water endothermic or exothermic?
    5·1 answer
  • The single most important ingredient in a good beer is high-quality A. yeast. B. water. C. malt. D. hops.
    13·2 answers
  • A gas gas a volume of 4.0 liters at a pressure of 0.80 atm. What is the volume if the pressure is changed to 0.40 atm at a const
    9·1 answer
  • For each of the scenarios, determine if the ionic strength of the solution would increase, decrease, or not change. Ignore any e
    8·1 answer
  • This is the balanced chemical equation for a reaction
    12·2 answers
  • Explain why crude oil is a fossil fuel​
    14·2 answers
  • The rate constant for a first-order reaction is 2.4 x 10-4 L/(mol's) at 600 K and 6.2 x 10-4L/(mol · s) at 900 K.
    13·1 answer
  • The difference between oxygen and ozone
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!