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
AlladinOne [14]
3 years ago
10

Sirius, the brightest star, is 8.8 light-years from Earth. That means

Chemistry
1 answer:
Luda [366]3 years ago
6 0
C) we can see Sirius as it looked 8.8 light years ago.
You might be interested in
When having an equal number of protons and electrons, what does that do to the overall charge of the element? Why do you think t
gladu [14]
It means it’s neutrally charged! Protons are positive while electrons are negative, so they balance each other out. Neutrons are neutral so they don’t weigh in.
4 0
3 years ago
How many electrons does a carbon atom have? How many of these are valence electrons?
Svetllana [295]
It has 6 electrons, and 4 valence electrons
4 0
3 years ago
Read 2 more answers
How many grams of NaOH are produced from 20 grams of Na2Co3
Mariulka [41]

Answer:

1400

Explanation:

4 0
3 years ago
A sample of sulfur hexafluoride gas occupies a volume of 5.10 L at 198 ºC. Assuming that the pressure remains constant, what tem
Ludmilka [50]

Answer:

When the volume will be reduced to 2.50 L, the temperature will be reduced to a temperature of 230.9K

Explanation:

Step 1: Data given

A sample of sulfur hexafluoride gas occupies a volume of 5.10 L

Temperature = 198 °C = 471 K

The volume will be reduced to 2.50 L

Step 2 Calculate the new temperature via Charles' law

V1/T2 = V2/T2

⇒with V1 = the initial volume of sulfur hexafluoride gas = 5.10 L

⇒with T1 = the initial temperature of sulfur hexafluoride gas = 471 K

⇒with V2 = the reduced volume of the gas = 2.50 L

⇒with T2 = the new temperature = TO BE DETERMINED

5.10 L / 471 K = 2.50 L / T2

T2 = 2.50 L / (5.10 L / 471 K)

T2 = 230.9 K = -42.1

When the volume will be reduced to 2.50 L, the temperature will be reduced to a temperature of 230.9K

8 0
3 years ago
What is a unifying principle that explains a body of
padilas [110]
The answer to this question is theory
3 0
3 years ago
Other questions:
  • Please help i have a midterm tommorow
    6·1 answer
  • A solution with a Ph of 13 would be classified as a_____
    12·1 answer
  • For each of the following
    11·2 answers
  • HELP I NEED HELP!!!<br> Please I have 5 minutes left
    5·1 answer
  • Which one of these is not a pathogen?
    10·1 answer
  • Four groups of students were each asked to create table listing two elements and two compounds. Only one group’s table was corre
    6·1 answer
  • The ions S-2, Cl-1, K+, Ca+2, Sc+3 have the same total number of electrons as the noble gas argon. How would you expect the radi
    5·1 answer
  • During the process of nuclear decay what form of energy is released?
    15·1 answer
  • HDSJDHAJ SOMEONE HELP ME IM ABOUT TO FAIL MY SCIENCE CLASS
    7·2 answers
  • Calculate the molarity of a Ba(OH)2 solution if 1950 mL is completely titrated by 26.1 mL of 0.505 M HNO3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!