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4 years ago

6

Which stage is the middle stage of speciation? (15 Points)

1 answer:

goldenfox [79]4 years ago

7 0

The populations are isolated and thus do not interbreed.

Answer:B

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How many grams of sodium metal are needed to make 29.3 grams of sodium chloride? given the reaction: 2na + cl2 → 2nacl?

Bess [88]

2Na + Cl2 → 2NaCl
46 g. ➡️ 117 g
x. ➡️ 29.3 g
$x = \frac{46 \times 29.3}{117} \\ x = 11.5 \: g$

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3 years ago

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Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few min

Olenka [21]

(80+125+45) / 10 = 250/10 =25
25 meters per minute= 0.41 meters/second

the direction and stopping time is irrelevant to the problem.

6 0

4 years ago

how much heat is absorbed when 15.0 g of liquid water is heated until the temperature increases by 16.0.

svlad2 [7]

N snsnnsnansnannnans

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3 years ago

What is the molarity of 1 mole of HCl in 5 liters of solution?

kicyunya [14]

Molarity = moles of solute(HCl)
------------------------------------
volume of the solution

= 1
------
5

= 0.2M.

Hence option B is correct.
Hope this helps!!

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3 years ago

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A ball was kicked by a player, the ball was stationary, then it gains a velocity of 5 m/s North. Did the ball accelerate or no?

Tomtit [17]

Answer:

yes

Explanation:

it started moving North 5 m/s

7 0

3 years ago