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vivado [14]
3 years ago
9

Humans are most abundant during which geological era?

Chemistry
1 answer:
emmainna [20.7K]3 years ago
8 0

Answer:

Cenoizic

Precamborian

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How many bromine atoms are present in 39.4 g of CH2Br2
strojnjashka [21]
37.8 g CH2Br2 X (1 mol CH2Br2 / 173.83 g) = 4.60X10^-3 mol CH2Br2 

<span>4.60X10^-3 mol CH2Br2 X (2 mol Br / 1 mol CH2Br2) X 6.02X10^23 atoms/mol = 5.54X10^21 bromine atoms</span>
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Why will a toy train remain still if you push on the engine with
netineya [11]

Explanation:

Because when two equal forces are applied from opposite directions, they "eliminate" each other.

The train would go right if a 3N force was only applied in the right direction, and it would go left if the same force was only applied to the left.

If a 3N force was applied to the right and a 2N force to the left, it would equal a 1N force to the right (3-2=1).

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2 years ago
I'll give you a cookie
Llana [10]

Answer:

B. Is the correct answer :) i hope this helps!!

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brainliest please?

8 0
3 years ago
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What volume of 12 M NaOH and 2 M NaOH should be mixed to get 2 litres of 9 M NaOH solution?
Sergio [31]
8/5lit.. of 12M NaOH
2/5lit.. of 2M NaOH
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3 years ago
The object is traveling at a velocity of m/s.
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= 3.75m {s}^{ - 1}  \\

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