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Basile [38]
3 years ago
5

PLEASE HELP!!!!

Chemistry
2 answers:
vampirchik [111]3 years ago
6 0

Answer:

Given its huge success in describing the natural world for the past 150 years, the theory of evolution is remarkably misunderstood. In a recent episode of the Australian series of “I’m a Celebrity Get Me Out of Here”, former cricket star Shane Warne questioned the theory – asking “if humans evolved from monkeys, why haven’t today’s monkeys evolved”?

Similarly, a head teacher from a primary school in the UK recently stated that evolution is a theory rather than a fact. This is despite the fact that children in the UK start learning about evolution in Year 6 (ten to 11-year-olds), and have further lessons throughout high school. While the theory of evolution is well accepted in the UK compared with the rest of the world, a survey in 2005 indicated that more than 20% of the country’s population was not sure about it, or did not accept it.

Explanation:

lys-0071 [83]3 years ago
3 0

Answer:

Humans did not evolve from monkeys

Explanation:

Us humans and apes had a common ancestor that split in path millions of years ago. This resulted in our ancestor and ape ancestor. Monkeys may of came from ape, but we definitely did not evolve from monkey

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Can some atoms exceed the limits of the octet rule in bonding? If so, give an example.
harkovskaia [24]

Answer:

Yes. Example: <u>Sulfur hexafluoride (SF₆) molecule</u>

Explanation:

According to the octet rule, elements tend to form chemical bonds in order to have <u>8 electrons in their valence shell</u> and gain the stable s²p⁶ electronic configuration.

However, this rule is generally followed by main group elements only.

Exception: <u>SF₆ molecule</u>

In this molecule, six fluorine atoms are attached to the central sulfur atom by single covalent bonds.

<u>Each fluorine atom has 8 electrons in their valence shells</u>. Thus, it <u>follows the octet rule.</u>

Whereas, there are <u>12 electrons around the central sulfur atom</u> in the SF₆ molecule. Therefore, <u>sulfur does not follow the octet rule.</u>

<u>Therefore, the SF₆ molecule is known as a </u><u>hypervalent molecule</u><u> or expanded-valence molecule.</u>

6 0
3 years ago
Balance the following equation by providing the correct coefficients C2H6 + O2 -&gt; CO2 + H2O
pogonyaev
2 C2H6 + 7 O2 ➡️ 4 CO2 + 6 H2O
7 0
3 years ago
Knowing that the distances the truck traveled during each segment were 30, 45, 50, and 65 respectively, what was the total dista
Sholpan [36]

Answer:

The distance the truck traveled is 190

Explanation:

I added 30, 45, 50, 65 together to get the total distance

5 0
3 years ago
What is the formula for an ionic compound that forms out of Sr and Br?
lesantik [10]

Answer: St Br2

Explanation: Br has only one valence electrons and Sr has 2 valence electrons this is why we need 2 atoms of Br to for an ionic compound with 1 atom of Sr.

8 0
3 years ago
A _____ bond is a type of chemical bond where a pair of electrons is unequally shared between two atoms. As a result, one end of
insens350 [35]

Polar Covalent Bond

This bond exists when atoms that have different electronegativities share electrons in a covalent bond, the electrons are not transferred from one atom to the other as in the case of ionic bond.

8 0
4 years ago
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