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
stiks02 [169]
3 years ago
6

Which of the following describes an irregular galaxy?

Chemistry
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

D

Explanation:

They don't have define shape nor structure...so a random group of stars and no shape can form a irregular galaxy

You might be interested in
How much money do you guys make off of this lame website?
MrRissso [65]

Answer:

so far from what i've seen its been 80 mil

Explanation:

the power of GoogIe

7 0
3 years ago
Read 2 more answers
During the chemical reaction given below 21.71 grams of each reagent were allowed to react. Determine how many grams of the exce
swat32

Answer: 16.32 g of O_2 as excess reagent are left.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} SO_2=\frac{21.71g}{64g/mol}=0.34mol

\text{Moles of} O_2=\frac{21.71g}{32g/mol}=0.68mol

2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)  

According to stoichiometry :

2 moles of SO_2 require = 1 mole of O_2

Thus 0.34 moles of SO_2 will require=\frac{1}{2}\times 0.34=0.17moles  of O_2

Thus SO_2 is the limiting reagent as it limits the formation of product and O_2 is the excess reagent.

Moles of O_2 left = (0.68-0.17) mol = 0.51 mol

Mass of O_2=moles\times {\text {Molar mass}}=0.51moles\times 32g/mol=16.32g

Thus 16.32 g of O_2 as excess reagent are left.

3 0
3 years ago
4
STALIN [3.7K]

Answer: The space occupied by the gas at 400 torr and 25^{o}C is 250 mL.

Explanation:

Given: V_{1} = 250 mL,    P_{1} = 800 torr,     T_{1} = 50^{o}C

V_{2} = ?,         P_{2} = 400 torr,        T_{2} = 25^{o}C

Formula used is as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}

Substitute the values into above formula as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{800 torr \times 250 mL}{50^{o}C} = \frac{400 torr \times V_{2}}{25^{o}C}\\V_{2} = 250 mL

Thus, we can conclude that space occupied by the gas at 400 torr and 25^{o}C is 250 mL.

7 0
3 years ago
When is a hurricane nears land, causes the most damage?
xeze [42]

A hurricane will weaken after making landfall.

3 0
3 years ago
Which of the following statements about subatomic particles best characterizes electrons? A positive charge, light, circling the
schepotkina [342]
Every electron carries one elementary negative charge.  Concerning mass,
it takes roughly 1,840 electrons to make enough mass for 1 proton or 1 neutron.
Electrons don't necessarily have to stay connected to an atom, but when they do,
they circle the nucleus.

So you should select (C): ==> Negative, ==> light, ==> circling the nucleus.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Why are chemical equilibria called dynamic equilibria?
    12·1 answer
  • FAN AND MEDAL
    15·2 answers
  • Which is classified as a pure substance?
    7·2 answers
  • Sulfur reacts with oxygen to produce sulfur trioxide gas. Balance the equation. __S+__(sub2) -----> __SO(sub3)
    7·1 answer
  • Balance chemical equation Fe3O4 = Fe + CO2
    15·1 answer
  • The main buffering agents in human blood are h2co3 and hco3. Explain how this buffering system will be able to maintain blood pH
    9·1 answer
  • What is the mass in grams of 1.204x10^24 molecules of hydrogen gas (H2) ?
    7·2 answers
  • Arrange the following solutions in incresing order of ph
    9·1 answer
  • A scientist performed an experiment with a mouse where the mouse was moving along a track with a new experimental unscented chee
    14·1 answer
  • What was the hiker's average velocity during part C of the hike?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!