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3 years ago

Which does not increases the speed of a reaction

Chemistry

2 answers:

Art [367]3 years ago

8 0

Do you have variants?

rjkz [21]3 years ago

3 0

Explanation:

this is my answer correct me if I'm wrong

If the reactants don't have enough energy,a reaction won't occur even if the reactants do collide at the reactive site . Notice that at the lower temperature ,very few of the reactant of kinetic energy needed to provide the activation energy.

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The theory of plate tectonics is supported by data collected by scientists. One piece of data includes that earthquakes tend to

k0ka [10]

Answer:

is that a letter a

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3 years ago

What is the lowest possible number of moves in solitaire?

jek_recluse [69]

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source: https://www.quora.com/What-is-the-minimum-number-of-moves-required-to-win-in-Solitaire

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3 years ago

What are some things that might happen that can change our air so that it is not health for plants?

Yuki888 [10]

Answer:

What are some things that might happen that can change our air so that it is not health for plants?

Explanation:

Air pollutants have a negative impact on plant growth, primarily through interfering with resource accumulation. Once leaves are in close contact with the atmosphere, many air pollutants, such as O3 and NOx, affect the metabolic function of the leaves and interfere with net carbon fixation by the plant canopy. Air pollutants that are first deposited on the soil, such as heavy metals, first affect the functioning of roots and interfere with soil resource capture by the plant.

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3 years ago

What is the atomic number of a sodium atom that has 11 protons and 12 neutrons?

galben [10]

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4 years ago

What is the mass of 61.9 L of oxygen gas collected at STP?

Tcecarenko [31]

Answer:

D. 44.2 g O₂

General Formulas and Concepts:
Gas Laws

STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Stoichiometry

Dimensional Analysis
Mole Ratio

Explanation:

Step 1: Define

Identify given.

61.9 L O₂ at STP

Step 2: Convert

We know that the oxygen gas is at STP. Therefore, we can set up and solve for how many moles of O₂ is present:

$\displaystyle 61.9 \ \text{L} \ \text{O}_2 \bigg( \frac{1 \ \text{mol} \ \text{O}_2}{22.4 \ \text{L} \ \text{O}_2} \bigg) = 2.76339 \ \text{mol} \ \text{O}_2$

Recall the Periodic Table (Refer to attachments). Oxygen's atomic mass is roughly 16.00 grams per mole (g/mol). We can use a mole ratio to convert from moles to grams:

$\displaystyle 2.76339 \ \text{mol} \ \text{O}_2 \bigg( \frac{16.00 \ \text{g} \ \text{O}_2}{1 \ \text{mol} \ \text{O}_2} \bigg) = 44.2143 \ \text{g} \ \text{O}_2$

Now we deal with sig figs. From the original problem, we are given 3 significant figures. Round your answer to the exact same number of sig figs:

$\displaystyle 44.2143 \ \text{g} \ \text{O} \approx \boxed{ 44.2 \ \text{g} \ \text{O}_2 }$

∴ our answer is letter choice D.

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Topic: AP Chemistry

Unit: Stoichiometry

6 0

2 years ago

Which does not increases the speed of a reaction​

Which does not increases the speed of a reaction