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never [62]
3 years ago
15

Which statement describes magnetic force?

Chemistry
1 answer:
tekilochka [14]3 years ago
6 0

Answer:

D. A north pole and south pole attract each other

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1. What is the mitochondra in a cell? What is its primary funtion?
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The mitochondria is full of energy. It’s primary function is to generate large quantities of ATP.
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3 years ago
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1. How many Chromium atoms are found in 25.8 milligrams of Chromium?​
givi [52]

Answer: 51.9961 g/mol, don't know if it helps :)

Explanation:

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A certain shade of blue has a frequency of 7.00 × 1014 Hz. What is the energy of exactly one photon of this light?
NeTakaya
Energy = Planck's constant * Frequency 

E = (6.62607004 × 10⁻³⁴<span>) * 7 * 10</span>¹⁴

E = 46.38 * 10⁻²⁰

E = 4.638 * 10⁻¹⁹ J

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The law of converservation of mass states of the mass to the reacant is
olganol [36]

Answer:

the same as the products.

Explanation:

Law of conservation of mass states that the mass of the reactant is always the same as the products since they are not lost nor gained.

5 0
3 years ago
in the following reaction, how many grams of benzene (C6H6) will produce 42 grams of CO2? 2C6H6 + 15O2 → 12CO2 + 6H2O
Mrrafil [7]

Answer: -

12.41 g

Explanation: -

Mass of CO₂ = 42 g

Molar mass of CO₂ = 12 x 1 + 16 x 2 = 44 g / mol

Number of moles of CO₂ = \frac{42}{44 g/mol}

= 0.9545 mol

The balanced chemical equation for this process is

2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O

From the balanced chemical equation we see

12 mol of CO₂ is produced from 2 mol of C₆H₆

0.9545 mol of CO₂ is produced from \frac{2 mol C6H6 x 0.9545 mol  CO2}{12 mol CO2}

= 0.159 mol of C₆H₆

Molar mass of C₆H₆ = 12 x 6 + 1 x 6 =78 g /mol

Mass of C₆H₆ =Molar mass x Number of moles

= 78 g / mol x 0.159 mol

= 12.41 g

8 0
4 years ago
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