The speed of light in a vacuum is 3.00 × 108 m/s. enter your answer in scientific notation. (a) what is its speed in km/h? what is its speed in mi/min?

a is 1.08x10^9. the first person to answer was wrong :(

Explanation:

Answer :

(a) The speed in Km/hr is,

(b) The speed in mi/min is,

Solution :

The speed of light =

(a) Convert speed of light from m/s to Km/hr

conversions used :

(1 Km = 1000 m)

(1 hr = 3600 sec)

(b) Convert speed of light from m/s to mi/min

conversions used :

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"