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
kompoz [17]
3 years ago
13

Help Please I Don't Know.

Physics
1 answer:
Tom [10]3 years ago
8 0
1)
HCl: hydrogen, chloride
3CO2: carbon, oxygen
2Na2SO4:sodium, sulphur, oxygen.

2)
-HCl: 1 hydrogen atom, 1 chlorine atom
-CO2: 1 carbon atom, 2 oxygen atoms
-Na2SO4: 2 sodium atoms, 1 sulphur atom, 4 oxygen atoms.

3)
-HCl: 2 atoms
-3CO2: 9 atoms
-2Na2SO4: 14 atoms.
You might be interested in
The heating of the filament is what causes the light production (photon emission), and heating is caused by the current in the l
alexira [117]

Answer:

explained

Explanation:

Yes, the heating of filament is what causes the light production (photon emission), and this heating is caused because of current in the light bulb

(H= i^2*R*t i=current, H= heat, t= time and R= resistance).But using constant current source is not a good idea because in constant current source resistance is very low that can cause short circuit and ultimately fusing it. Whereas in constant voltage source current adjusts itself and prevents fusing because of high resistance in the circuit.

8 0
3 years ago
Where does wave reflection occur?
alisha [4.7K]
Wave reflection occurs when waves reflect or rebound off of a surface. This is like an echo because the sound waves are reflected from a distant surface 
7 0
3 years ago
Read 2 more answers
Two light bulbs are wired in series and one bulb burns out (opens). Technician A says that the other bulb will work. Technician
Sedbober [7]

Answer: Neither of them is correct because the other bulb will not work

Explanation: In a series circuit, the current that flows through each of the components is the same, and the voltage across the circuit is the sum of the individual voltage drops across each component. This is the other way for a parallel circuit connection

In a series circuit, every device must function for the circuit to be complete. If one bulb burns out in a series circuit, the entire circuit is broken. In parallel circuits, each light bulb has its own circuit, so all but one light could be burned out, and the last one will still function.

5 0
3 years ago
Which level of organisms get the most energy out of the food they make or consume?
boyakko [2]
Higher-level consumers get the most energy from food they eat.
An example is a lion eating a zebra. The zebra has more energy than a handful of grass, which has almost none to offer.
6 0
3 years ago
Why doesn't the north star move?<br><br>i need the answer asap and i will give brainliest​
3241004551 [841]

☁️ Answer ☁️

annyeonghaseyo!

The answer is:

Because it takes the Earth a full year to move from one end of its orbit to the other, and because that distance is so tiny compared to the distance to the star, and because the star is aligned with the Earth's axis of rotation, it doesn't appear to ever move. The north pole coincidentally points at this star.

Hope it helps.

Have a nice day noona/hyung!~  ̄▽ ̄❤️

3 0
3 years ago
Other questions:
  • Games in Space: On Earth, an astronaut throws a ball straight upward, and it stays in the air for a total of 3.0s before they ca
    12·1 answer
  • There are 4.2 cups in a liter. of a bottle holds 2.0 cups what does it hold in liters
    10·2 answers
  • What is the period of a soundwave whose wavelength is 20.0 m? Use values from the book and show ALL of your work.
    7·1 answer
  • A 25 newton force applied on an object moves it 50 meters. The angle between the force and displacement is 40.0 degrees. What is
    15·2 answers
  • 10 points
    15·1 answer
  • G to ml,density=3.291 g/ml
    6·1 answer
  • In which era did the universe’s clouds start to condense and the universe became transparent for the first time?
    9·1 answer
  • Which choice is the BEST source of PROTEIN?<br> 1 Meat<br> 2 Bread<br> 3 Rice<br> 4 Apples
    11·2 answers
  • A science student makes the following statement:
    6·2 answers
  • Thank you for helppp
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!