Should be 2Na + Br2 = 2NaBr :)
At high speeds, there is more kinetic energy involved - more energy that will be converted to other forms of energy. This includes breaking a car, or body parts of people involved.
<span>Carbon-6, Hydrogen-12, Oxygen-6
Number of atoms altogether: 24</span>
Answer:
A. Whenever the population has increased, steel consumption has increased as well.
Explanation:
Based on the graph of US population and steel consumption, what could have led to the increase in steel consumption seen on the graph is that whenever the population has increased, steel consumption has increased as well.
A critical look at the graph, you will discover that the population and the steel consumption are moving upwards (i.e they are increasing). It's seen that as the population increases, steel consumption increases. This is true because as the population increases, people are building houses, more transportation systems that require steel are being manufactured, more household utensils that are steel products are being fabricated etc; therefore the consumption of steel increases.
Answer:
a) As I remember "the atomic spectra" of bohr
1- Existence of a positively charged nuclei in the centre of the atom
2- Number of negatively charged electrons = number of positive charges ported by the atom.
3- Electrons navigate in fixed energy levels , with a high speed without gain or loose energy
4- centrifugal force is in equilibrium with attraction force.
5- The empty space between energy levels is forbidden for electrons.
