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
antiseptic1488 [7]
3 years ago
10

Plz help, science open answer

Chemistry
1 answer:
aleksandrvk [35]3 years ago
7 0
Scientists are cool
You might be interested in
Why increasing the temperature of a gas would increase the volume of its container in gas law?
Zarrin [17]

When the amount of gas in a container is increased, the volume increases. Lussac's law states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature.

7 0
3 years ago
In 1909 Fritz Haber discovered the workable conditions under which nitrogen, N2(g), and hydrogen, H2(g), would combine using to
labwork [276]

Answer : 51.8 g of nitrogen are needed to produce 100 grams of ammonia gas.

Solution : Given,

Mass of NH_3 = 100 g

Molar mass of NH_3 = 27 g/mole

Molar mass of N_2 = 28 g/mole

First we have to calculate moles of NH_3.

\text{ Moles of }NH_3=\frac{\text{ Mass of }NH_3}{\text{ Molar mass of }NH_3}= \frac{100g}{27g/mole}=3.7moles

The given balanced chemical reaction is,

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)

From the given reaction, we conclude that

2 moles of NH_3 produced from 1 mole of N_2

3.7 moles of NH_3 produced from \frac{1mole}{2mole}\times 3.7mole=1.85moles of N_2

Now we have to calculate the mass of N_2.

Mass of N_2 = Moles of N_2 × Molar mass of N_2

Mass of N_2 = 1.85 mole × 28 g/mole = 51.8 g

Therefore, 51.8 g of nitrogen are needed to produce 100 grams of ammonia gas.

5 0
3 years ago
According to the rate law, how do concentrations affect rate?
IrinaK [193]
D, the rate increases as concentrations increase.

Typically, reaction rates decrease with time because reactant concentrations decrease as reactions are converted to products. Reaction rates generally increase when reactant concentrations are increased.
6 0
3 years ago
Read 2 more answers
SHOW WORK AND INCLUDE UNITS
Ber [7]

Answer:

36365.4 Joules

Explanation:

The quantity of Heat Energy (Q) released on cooling a heated substance depends on its Mass (M), specific heat capacity (C), and change in temperature (Φ)

Thus, Q = MCΦ

Since, M = 45.4 g

C = 3.56 J/g°C,

Φ = 250°C - 25°C = 225°C

Q = 45.4g x 3.56J/g°C x 225°C

Q= 36365.4 Joules

Thus, 36365.4 Joules of heat energy is released when the lithium is cooled.

6 0
3 years ago
What do scientists use to increase the surface area of a solute
marta [7]

use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.


6 0
4 years ago
Read 2 more answers
Other questions:
  • Each of the following substrates can react with a nucleophile in a substitution reaction. Select the substrate that cannot under
    13·1 answer
  • What was Ernest Rutherford's atom model name
    15·2 answers
  • Each Thursday the 11 kindergarten students in Miss Goodson's class are each allowed one slice of pie, one cup of orange juice, a
    7·1 answer
  • The concentration of a solution can be expressed in
    8·2 answers
  • What is the molarity of a 0.40 L Solution with 6.2 g KCl?
    8·1 answer
  • Which factor affects a solute's solubility rather than its rate of solution?
    15·1 answer
  • Explain the difference between endothermic and exothermic processes. Provide an example of each.
    9·1 answer
  • An object has a gravitational potential energy that is 800 Joules. Its
    6·1 answer
  • Covalent bonds take place between..
    6·1 answer
  • Suppose you need to prepare 136.9 mL of a 0.315 M aqueous solution of NaCl.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!