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Citrus2011 [14]
3 years ago
11

I neeed help please help

Chemistry
2 answers:
Zina [86]3 years ago
8 0

To increase the rate of a reaction, you can increase the amount of surface area (so the third option).

By increasing the surface area, more particles become exposed and therefore it's more likely for there to be a higher rate of collisions between the reactant and the particles. Due to this, the rate of the reaction increases.

mina [271]3 years ago
7 0

A. Lowering the temperature.

I hope this helped!

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How many molecules of propane were in the erlenmeyer flask? Avogadro's number is 6. 022 × 10^23 molecules/mol
Ede4ka [16]

3.74×10^{21}

3.74 ×10^{21} molecules of propane were in the erlenmeyer flask.

number of moles of propane can be calculated as moles of propane.

mass of propane =  0.274 g

molar mass of propane = 44.1

So this gives us the value of 6.21×10^{-3} moles of propane

No one mole of propane As a 6.0-2 × 10^{23}

so, 6.21 ×10^{-3} × 6. 022 × 10^23

= 3.74 ×10^{21}

Therefore, molecules of propane were in the erlenmeyer flask is found to be 3.74 ×10^{21}

<h3>What is erlenmeyer flask?</h3>
  • A laboratory flask with a flat bottom, a conical body, and a cylindrical neck is known as an Erlenmeyer flask, sometimes known as a conical flask or a titration flask.
  • It bears the name Emil Erlenmeyer after the German chemist.

<h3>What purpose does an Erlenmeyer flask serve?</h3>
  • Liquids are contained in Erlenmeyer flasks, which are also used for mixing, heating, chilling, incubating, filtering, storing, and other liquid-handling procedures.
  • For titrations and boiling liquids, their sloped sides and small necks make it possible to whirl the contents without worrying about spills.

To learn more about calculating total molecules visit:

brainly.com/question/8933381

#SPJ4

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What would happen if an alkali metal was combined with a halogen?explain ​
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All alkail metals react with halogens vigorously to produce salt. The alkali metal would loose an electron to form and ion with the halogen
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