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
pentagon [3]
4 years ago
13

Which scenario has been theorizedłas the possible fate of the universe?

Chemistry
1 answer:
Tresset [83]4 years ago
7 0

Answer:

El destino final del universo es una de las cuestiones fundamentales en cosmología física. Muchos destinos posibles son predichos por teorías científicas rivales, incluyendo futuros de duración tanto finita como infinita. Una vez que la noción de que el universo empezó con una rápida inflación apodada el Big Bang, se hizo popular entre la mayoría de los científicos

Explanation:

You might be interested in
Which of these elements could gain one electron to form an ionic bond with potassium explain why
Svet_ta [14]

Answer:

<h3>Chlorine </h3>

It has 7 electrons in it last shell. it will gain one electron to complete its octet and become Cl-. The ionic bond of chlorine form with potassium is Kcl ( potassium chloride)

  • Phosphorus has 5 electrons in its last shell it need 3 more electron to stable .

  • Sulphur has 6 electron. it needs 2 electrons

  • Argon is already stable as it has 8 electrons in its last shell it will not gain or loose any electrons
7 0
3 years ago
write a balanced equation to determine the molarity of the HCI solution when a 24.6 ml sample of HCI reacts with a 33.0 mL of 0.
MatroZZZ [7]

Answer: 0.30 M

Explanation:

HCl+NaOH\rightarrow NaCl+H_2O

According to the neutralization law,

n_1M_1V_1=n_2M_2V_2

where,

M_1 = molarity of HCl solution = ?

V_1 = volume of HCl solution = 24.6 ml

M_2 = molarity of NaOH solution = 0.222 M

V_2 = volume of NaOH solution = 33.0 ml

n_1 = valency of HCl = 21

n_2 = valency of NaOH = 1

1\times M_1\times 24.6=1\times 0.222\times 33.0

M_1=0.30M

Therefore, the molarity of the HCI solution is 0.30 M

5 0
3 years ago
Read 2 more answers
How does the amount of water in a glass affect the pitch of the sound it produces?
Mrac [35]

Answer:

The glasses with different amounts of water make different sounds. ... This is because the empty glass only has air around it, so the glass vibrates quickly when it is hit, causing the high pitch sound. The glass full of water causes the glass to vibrate slower, and the sound you hear is at a lower pitch.

Explanation:

7 0
3 years ago
Read 2 more answers
Please help me with chemistry
jok3333 [9.3K]
I will, I am in a chemistry class right now. What’s up?
8 0
3 years ago
Unlike acceleration and velocity, speed does NOT need to specify
jarptica [38.1K]

Answer:

C) mass.

Explanation:

The speed of a body is given by the relation between the displacement of a body in a given time. It can be considered the greatness that measures how fast a body moves.

Speed analysis is divided into two main topics: average speed and instantaneous speed. It is considered a vector quantity, that is, it has a module (numerical value), a direction (Ex .: vertical, horizontal) and a direction (Ex .: forward, upwards). However, for elementary problems, where there is displacement in only one direction, the so-called one-dimensional movement, it is advisable to treat it as a scalar quantity (with only numerical value).

The mass of an object is not an important factor in determining the speed of that object. However, time, direction and distance are important factors in determining speed.

3 0
3 years ago
Other questions:
  • A weight of 100 pounds moved a distance of 12 feet equals 120 240 1200 ft.-lbs. of work.
    8·1 answer
  • Write a scientific explanation explaining how the earth recycles plate materials?
    7·1 answer
  • Select the correct answer. What energy does a rock resting on a hilltop store? A. gravitational energy B. chemical energy C. the
    8·2 answers
  • How many electrons are shared in a single bond?
    6·1 answer
  • A 27.0-gram sample of an unknown hydrocarbon was burned in excess oxygen to form 88.0 grams of carbon dioxide and 27.0 grams of
    13·1 answer
  • How many atoms is 500.0 moles of pure gold?
    11·1 answer
  • To Separate camphor from sand we use_______process.​
    10·1 answer
  • Water covers over two thirds of earths surface. Yet water shortages are a major problem for many people around the world. Why do
    12·1 answer
  • Determine the molar mass of a compound that has a density of 1.25 g/L at<br> STP. *<br> *
    10·1 answer
  • A pot of water at 25°C is placed over a flame until it has boiled away. Which way is energy being transferred between the system
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!