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MrRissso [65]
2 years ago
9

PLEASE HELP DUE IN 15!!!!!!!!!!!! WILL GIVE BRAINLIEST!!

Chemistry
1 answer:
maria [59]2 years ago
4 0

Explanation:

n=,4.5 moles C2H6

the ratio 2:7

4.5:x

x=15.75 moles

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When potassium iodide dissolves in water, the beaker becomes warm. Which statement best describes this process? A) The ΔHsolvati
iogann1982 [59]

The answer for this pronles mis "a"  The ΔHsolvation is exothermic and the overall ΔHsolution is exothermic.

4 0
3 years ago
Nucleotides consist offa phosphate group, a nitrogenous base, and a
Mkey [24]

Answer:

5-Carbon sugar

Explanation:

A nucleotide is made up of 3 things: a phosphate group, a 5-carbon sugar, and a nitrogenous base.

4 0
3 years ago
¿POR QUÉ EL ORO DE 24 K NO ES UNA SOLUCIÓN ? ​
Allushta [10]

Answer:

Pues quien sabe??

Explanation:

3 0
3 years ago
WILL MARK BRANLIEST FOR CORRECT ANSWER! Given the following equation, write the expression for its relative rate.
USPshnik [31]

\tt -\dfrac{1}{2}\dfrac{d[N_2O]}{dt}=\dfrac{1}{2}\dfrac{d[N_2]}{dt}=\dfrac{1}{1}\dfrac{d[O_2]}{dt}

<h3>Further explanation</h3>

Reaction

2N2O(g) — 2N2(g) + O2(g)

Required

relative rate

Solution

The reaction rate (v) shows the change in the concentration of the substance (changes in addition to concentrations for reaction products or changes in concentration reduction for reactants) per unit time.

so the relative rates for the reaction above are :

\tt -\dfrac{1}{2}\dfrac{d[N_2O]}{dt}=\dfrac{1}{2}\dfrac{d[N_2]}{dt}=\dfrac{1}{1}\dfrac{d[O_2]}{dt}

7 0
3 years ago
Match the transport process to its description.
jeka57 [31]

Answer:

C. Both

Explanation:

The movement of molecules from an area of high concentration to an area of low concentration is called <em>Diffusion.</em>

In simple difussion the movement of molecules is driven by a gradient in concentration in a solution or across a semipermeable membrane.

Unlike simple diffusion, in <em>facilitated diffusion</em>  membranes incorporate specialized membrane proteins which help transport substances across the membrane, and also the direction of transport is always down a concentration gradient, from an area of high concentration to an area of low concentration.

6 0
4 years ago
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