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
erica [24]
3 years ago
13

What are some ways the stars in the photo could be grouped or classified

Chemistry
1 answer:
Inessa05 [86]3 years ago
8 0
Astronomers classify stars according to their physical characteristics. Characteristics used to classify stars include color, temperature, size, composition, and brightness. Stars vary in their chemical composition.
You might be interested in
What is the number of moles in 500L of He
Volgvan

Answer:

20 moles

Explanation:

The important thing to realize here is that you're working under STP conditions, which implies that you can use the molar volume of a gas at STP to find how many moles of helium will occupy that volume.

4 0
4 years ago
Read 2 more answers
Patient added a 17-g measured dose of polyethylene glycol 3350 (MIRALAX) to 180 mL of water to use as a laxative. If the volume
Sergio [31]

Answer: Apparent density of ethylene glycol 3350 = 17g/15.6mL= 1.09g/mL

Specific gravity of mixture = 1.01

Explanation:

The specific gravity of an object or substance is the ratio of the density of that object or substance to that of a reference substance usually water.

<em>Specific gravity = density of substance/density of water</em>

The density of a substance is the ratio of the mass of that substance to is volume.

<em>Density = Mass/volume</em>

Density of water 1.00 g/mL,  

Apparent density of ethylene glycol 3350 = mass/volume

volume of ethylene glycol = volume of mixture - volume of water

volume of ethylene glycol = 195.6 - 180) = 15.6mL

Apparent density of ethylene glycol 3350 = 17g/15.6mL= 1.09g/mL

<em>mass of water =  density of water * volume of water</em>

mass of water = 1.00g/mL * 180mL = 180 g

Mass of solution = mass of substance + mass of water = (17 + 180)g = 197g

Density of mixture = mass of mixture / volume of mixture

Density of mixture = 197 g / 195.6 mL = 1.01 g/mL

specific gravity of mixture = density of mixture / density of water

specific gravity of mixture = 1.01g/mL / 1.00g/mL

specific gravity of mixture = 1.01

8 0
4 years ago
The explanation for the large space between particles in a gas is provided by ____. A. Boyle's law B. Dalton's law C. kinetic th
NeTakaya

The explanation for the large space between particles in a gas is provided by the kinetic theory (option C).

<h3>What is the kinetic theory?</h3>

The kinetic theory is a scientific theory used in physics to understand the behavior of gases.

This theory (kinetic theory) indicates that molecular distances in gases are small when compared to the molecular sizes.

In conclusion, the explanation for the large space between particles in a gas is provided by the kinetic theory (option C).

Learn more about the kinetic theory here:

brainly.com/question/15357425

#SPJ1

3 0
2 years ago
Which is greater , 3 moles of sulfur or 2 moles of iron sulphide
QveST [7]

Answer:

well since 3 is greater than 2 it would be 3 moles of sulfur.

Explanation:

7 0
3 years ago
Read 2 more answers
Calculate the density of CO2 at a pressure of 685.0 torr and 41.0°C . <br> R=0.0821 (L*atm)/(mol *K)
Keith_Richards [23]

T=41+273=314 k

M=(12)+(16×2)=44g/mol

d=PM/RT

d=685×44/0.0821×314

d=1169.15 g/L

5 0
3 years ago
Other questions:
  • Plz help will give brainliest, 50 pts!!! use your knowledge of the law of conversation of mass to answer the following question:
    11·1 answer
  • Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced
    11·2 answers
  • At particular temperature, Kp = 70.9 for the following reactionN2O4(g) == 2NO2(g)1. A certain pressure of N2O4 is initially adde
    7·1 answer
  • What is the noble-gas electron configuration for bromine?
    12·1 answer
  • Describe what happens to the electrons in a neon that is heated to incandescence and then when the heat energy is removed.
    5·1 answer
  • Earth's seasons occur due to the tilt of the earth and it's revolution around the sun.
    13·1 answer
  • How does increasing the temperature of a system affect the rate of chemical<br> reactions?
    10·1 answer
  • Is water a mineral? what do you think
    10·1 answer
  • An Sulfur tetrafluoride gas is collected at 23.0 °C in an evacuated flask with a measured volume of 20.0 L. When all the gas has
    11·1 answer
  • Look back at parts A and B to compare the properties of the unknown elements with the properties of the known
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!