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Vera_Pavlovna [14]

3 years ago

13

The world, 6.83 billion people: Express the following population estimates for the year 2010 in nanomoles of people.

1 answer:

telo118 [61]3 years ago

5 0

Answer:

1.13 x 10^-5

Explanation:

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A ray in the emission spectrum has a wavelength of 3.10 x 1014 meters. Given that the speed of light is 2.998 x 108 m/s, what is

bulgar [2K]

<span>0.967 x 10^-6 HZ

This should be correct (:</span>

8 0

3 years ago

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you produce 115 grams of water in a combustion reaction. how much methane do you need in grams for this to react?

lora16 [44]

Answer:about 2 grams of methane

Explanation:

idk just got this right

6 0

2 years ago

If 6.89 g of CuNO3 is dissolved in water to make a 0.460 M solution, what is the volume of the solution?

Readme [11.4K]

3.67 grams is the volume of the solution

6 0

3 years ago

What is the expected mass (in kg) of a 10 over 5 B isotope? 1 proton = 1.6726 × 10-27 kg 1 neutron = 1.6749 × 10-27 kg A.1.67 ×

Ira Lisetskai [31]

$^{10}_5 B$
An atom of this isotope contains 5 protons and 10-5=5 neutrons.

$5 \times 1.6726 \times 10^{-27} + 5 \times 1.6749 \times 10^{-27} = \\
8.363 \times 10^{-27} + 8.3745 \times 10^{-27}= \\
16.7375 \times 10^{-27}= \\
1.67375 \times 10^{-26} \approx \\
1.67 \times 10^{-26}$

The answer is A. 1.67 × 10⁻²⁶ kg.

8 0

3 years ago

The balanced equation for photosynthesis is shown below.

klio [65]

The true answer is: It's conserved because the total number of H atoms on each side is 12.
the first two answer is wrong because it's conserved not as mentioned, It's not conserved.

and the last one also wrong because the total number of O atoms are equal at the two sides but not equal 2.

3 0

2 years ago

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