Answer: Triangles are the strongest shape because they have fixed angles and don't distort very easily. Much of that works because the results from the characteristics of triangles, which are the strongest of all shapes.
Explanation: Hope this helps and I can get brainliest :)
Answer:
This concentrations represents 9.71 x 10¹⁹ nitrate ions per litre of drinking water.
Explanation:
Nitrate: NO₃⁻
MW = 62.00 g/mol
1 mol = 6.022 x 10²³
62 g NO₃⁻ ____________ 6.022 x 10²³ ions
10 x 10⁻³ g NO₃⁻ _________ x
x = 9.71 x 10¹⁹ ions
This concentrations represents 9.71 x 10¹⁹ nitrate ions per litre of drinking water.
<u><em>Answer:</em></u>
- Correct option is D. Family 18
<u><em>Explanation.</em></u>
The elements of group 18 of periodic table are called as noble gases. They are stable because they have complete valence shell electrons. So there octet rule is satisfied.
The elements of noble gases are
Answer:
The smell from the cake leaves the room at high velocities because of diffusion.
Kinetic theory:
The kinetic theory applies to gases and describes their random movement and collisions in the whole volume that they are allowed to fill. This movement depends on factors like temperature and pressure.
Coffee and bacon particles will exist in the air in gaseous form. They will be colliding with each other, with all the other air particles and with the room walls to eventually disperse evenly in the whole room. They will be detected when coming into contact with olfactory receptors in the nose. They will reach the nose at the same temperature and there are equal amounts of particles of each.
