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
Bad White [126]
3 years ago
11

What's the smallest celestial body

Chemistry
1 answer:
finlep [7]3 years ago
6 0
Neutron Stars are considered as the smallest celestial bodies 
You might be interested in
A balloon filled with helium occupies 20.0 l at 1.50 atm and 25.0◦c. How many moles of helium will there be in the balloon at st
satela [25.4K]

Answer:

  • There will be 1.23 moles of helium in the balloon at STP

Explanation:

1) <u>Initial conditions of the helium gas</u>:

  • V = 20.0 liter
  • p = 1.50 atm
  • T = 25.0 °C = 25.0 + 273.15 K = 298.15 K

2) <u>Ideal gas equation</u>:

  • pV = n RT
  • p, V, and T are given above
  • R is the Universal constant = 0.0821 atm-liter / ( K - mol)
  • n is the unknown number of moles

3) <u>Solve for n</u>:

  • n = pV / (RT) =
  • n = 1.50 atm × 20.0 liter / (0.0821 atm-liter /k -mol ×298.15K)
  • n = 1.23 mol

4) <u>At STP:</u>

  • STP stands for standard pressure and temperature.
  • The amount (number of moles) of the gas will not change because the change of pressure and temperature, so the number of moles reamain the same: 1.23 mol.
8 0
3 years ago
Which alkane may be obtained by the reduction of 2-bromo propane
Sunny_sXe [5.5K]

To reduce a haloalkane, it has to be eliminated first. This is because 2 bromopropanes are a saturated compound that can not be reduced by a saturated compound. Dehydrohalogenation of the haloalkanes into the form of propene and hydrogen bromide can lead to the elimination. The propene is then reduced to propane.

8 0
3 years ago
Read 2 more answers
List 3 household items. Identify 2 physical properties of each item.
ioda

Answer:

Water

Explanation:

Solid, liquids, and gases: Water can exist in several states, including ice (solid), water (liquid), and water vapor (gas). color (intensive)

density (intensive)

volume (extensive)

mass (extensive)

boiling point (intensive): the temperature at which a substance boils

melting point (intensive): the temperature at which a substance melts

3 0
3 years ago
Read 2 more answers
SOMEONE HELP ME WITH THIS !
kap26 [50]

Answer:

nah im good

Explanr[]

oiuyutyrtervefation:

5 0
3 years ago
The appropriate mixing ratio for a solution to kill blood borne pathogens is 1 part chlorine to 10 parts water if you are mixing
jarptica [38.1K]

To solve this problem, all we have to do it to make use of the principle of ratio and proportion. We are given the following ratio:

1 part Chlorine / 10 parts Water

Now to determine the amount of chlorine needed for 15 ounces of water, all we have to do is to use proportion. Let us say that the amount of Chlorine needed is x, therefore:

1 part Chlorine / 10 parts Water = x / 15 ounces Water

so,

1 / 10 = x / 15

Therefore calculating for x:

x = 15 / 10

<span>x = 1.5 ounces of Chlorine</span>

8 0
3 years ago
Other questions:
  • The vapor pressure of water at 25.0°c is 23.8 torr. determine the mass of glucose (molar mass = 180 g/mol) needed to add to 500.
    12·1 answer
  • I need help on science<br>I have a 89 on my report card for science and I need to get it to a 98
    11·1 answer
  • Which of these would be easily soluble in water?<br> a. salt<br> b. oil<br> c. aluminum foil
    13·2 answers
  • What gas is measured in an ICE CORE and what is the correlation between that gas and temperature?
    9·2 answers
  • Ca+HCI—&gt;CaCI2+H2, what is the reaction?
    7·2 answers
  • What determines the ratio of ions of an ionic compound? ( see screenshot for options)
    10·1 answer
  • Determine el volumen de las siguientes figuras: Un cubo de 3.5 cm. De lado. Una esfera de 5.8 cm. De diámetro. Cubo A= l 3 Esfer
    13·1 answer
  • You are working a crime scene and discover a weapon. How do you pick up the weapon so you do not disturb
    12·2 answers
  • Arrange the compounds from lowest boiling point to highest boiling point.
    6·1 answer
  • What is an allotrope?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!