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
wariber [46]
3 years ago
8

15 points

Chemistry
1 answer:
Usimov [2.4K]3 years ago
8 0
A new species of plant develops and another species of plant dies out
You might be interested in
I need some chem help :(
alexandr402 [8]
Hi, can you post what you need help with??
7 0
3 years ago
A sample of N2 gas in a flask is heated from 27 Celcius to 150 Celcius. If the original gas is @ pressure of 1520 torr, what is
Romashka [77]

Answer:

\large \boxed{\text{B.) 2.8 atm}}

Explanation:

The volume and amount are constant, so we can use Gay-Lussac’s Law:

At constant volume, the pressure exerted by a gas is directly proportional to its temperature.

\dfrac{p_{1}}{T_{1}} = \dfrac{p_{2}}{T_{2}}

Data:

p₁ = 1520 Torr; T₁ =   27 °C

p₂ = ?;               T₂ = 150 °C

Calculations:

(a) Convert the temperatures to kelvins

T₁ = (  27 + 273.15) K = 300.15 K

T₂ = (150 + 273.15) K = 423.15 K

(b) Calculate the new pressure

\begin{array}{rcl}\dfrac{1520}{300.15} & = & \dfrac{p_{2}}{423.15}\\\\5.064 & = & \dfrac{p_{2}}{423.15}\\\\5.064\times423.15&=&p_{2}\\p_{2} & = & \text{2143 Torr}\end{array}\\

(c) Convert the pressure to atmospheres

p = \text{2143 Torr} \times \dfrac{\text{1 atm}}{\text{760 Torr}} = \textbf{2.8 atm}\\\\\text{The new pressure reading will be $\large \boxed{\textbf{2.8 atm}}$}

7 0
2 years ago
Iron is listed below zinc in the activity series.
ololo11 [35]

Answer:

B

Explanation:

6 0
3 years ago
There are 6 oxygen atoms in a half dozen water (h2o) molecules. how many hydrogen atoms are in the same half dozen molecules?
dlinn [17]
There are 12 hydrogen atoms in 6(H2O)
5 0
3 years ago
What are the steps used to write ionic formulas for ionic compounds
lorasvet [3.4K]
Write the symbols for the cation and the anion: Mg and Cl. Determine the charge on the cation and anion. If the cation has a Roman numeral after it, that is the charge on that cation. Cations receive Roman numerals when they can take more than one ionicform.

periodical table and write caculatoin numbers
6 0
3 years ago
Other questions:
  • It is found that when one mole of sodium acetate trihydrate (nac2h302 3h2o, fw 136.08 g/mol) was heated to 58oc, water of hydra
    5·1 answer
  • When the equal molar amounts of of both the acid and the base were reacts, what happened in the reaction?
    8·1 answer
  • Aluminum reacts with chlorine gas to produce aluminum chloride according to the following equation. Al + Cl2 → AlCl3 Which of th
    11·2 answers
  • Am I incorrect ?<br> Or nah?
    7·2 answers
  • What nuclide would be produced from the positron emission of Co-56
    14·1 answer
  • PLEASE ANSWER!! I NEED HELP :)
    12·1 answer
  • Describe the brightness and temperature of the stars classified as giants.
    10·1 answer
  • How are point source and nonpoint source pollution harmful when it rains
    10·1 answer
  • 2Fe + 6HCl -&gt; 2FeCl3 + 3H2 If 7.0 moles of HCl is added to enough iron that the HCl is completely used up, how many
    15·1 answer
  • Percent Composition and Determining Empirical And Molecular Formulas
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!