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natima [27]
3 years ago
7

Complete the sentence : Cellular respiration occurs

Chemistry
1 answer:
andre [41]3 years ago
4 0
Cellular respiration occurs in animals.. what is it asking you

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serious [3.7K]

Answer:

the 3rd one

Explanation:

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How many moles of tungsten (W,183.85 g/lol are in 415 grams of tungsten?
vladimir1956 [14]

Given mass of tungsten, W = 415 g

Molar mass of tungsten, W = 183.85 g/mol

Calculating moles of tungsten from mass and molar mass:

415 g * \frac{1 mol}{183.85 g} = 2.26 mol W

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3 years ago
- Unit 1 Worksheet 4
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I think it is C or F
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Which of the following fractions can be used in the conversion of 32 m3 to the unit mm3?
guajiro [1.7K]
<span>In order to covert a unit, you must know certain number of conversions. In here, the conversion is in unit of length. One meter is equal to 1000 meter. So if it is in cubic form, then the answer of one meter cube is also equal to 1000 cube. Then,

32 m</span>³ (1000 mm/1m)³
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3 0
3 years ago
Write sulfur dioxide reactions
scZoUnD [109]

Answer:

Sulfur dioxide is a covalent bond because  we have two non-metals (Sulfur and Oxygen).

S + O_{2} \to SO_{2} (<em>Sulfur dioxide formula)</em>

It's called Sulfur dioxide but it can be called Sulfurous anhydride and Sulfur (lV) oxide.

Sulfur dioxide can have different reactions:

  • In the presence of oxygen oxidation of sulfur dioxide to sulfur trioxide occurs and the formula is:

SO_{2}+\frac{1}{2} O_{2}= SO3

The equal is because  it's a reversible equation. This reaction is spontaneous.

  • The sulfur trioxide reacting with water produces sulfuric acid. The formula is:

3 SO_{2} + O_{3} \to 3 SO_{3}\\SO_{3} + H_{2}O \to H_{2}SO_{4}

  • Also the sulfur dioxide reacting with  sodium hydroxide produces sodium sulfite and the formula is:

SO_{2} + 2 NaOH \to Na_{2}SO_{3} + H_{2}O

  • And finally we have the reduction of sulfur dioxide (it can be in presence of  hydrogen sulfide) getting elemental sulfur and water. The formula is:

SO_{2} + 2 H_{2}S \to 3 S + 2 H_{2}O

7 0
3 years ago
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