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3 years ago

⚠️HELP DUE IN 10 MINS WILL GIVE BRAINLIEST!!! THANKS⚠️

Chemistry

1 answer:

LenKa [72]3 years ago

3 0

Answer:

hahahh noob

Explanation:

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Experiments with rats show that if rats are dosed with 3.0 mg/kg of cocaine (that is, 3.0 mg cocaine per kg of animal mass), the

Aliun [14]

Answer:

The molecules of dopamine would be produced in a rat after 60 seconds of a 3.0 mg/kg dose of cocaine is $2.258\times 10^{12} molecules$ .

Explanation:

Concentration of dopamine = 0.75 μM = $7.5\times 10^{-7} M$

1 μM = $10^{-6} M$

Volume of the brain in which dopamine is produced = $V=5.00 mm^3$

$1 mm^3=10^{-6} L$

$V = 5.00\times 10^{-6} L$

Moles of dopamine = n

$Concentration=\frac{moles}{Volume}$

$7.5\times 10^{-7} M=\frac{n}{5.00\times 10^{-6} L}$

$n=7.5\times 10^{-7} M\times 5.00\times 10^{-6} L=3.75\times 10^{-12} mol$

$1 mol = 6.022\times 10^{23} molecules$

So, molecules in $3.75\times 10^{-12} mol$ of dopamine :

$3.75\times 10^{-12}\times 6.022\times 10^{23}=2.258\times 10^{12} molecules$

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3 years ago

What is heredity?

Leokris [45]

The passing of traits from parents to offspring

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3 years ago

How many electrons are there in carbonate ion, CO3^-2?

NISA [10]

It should be 24 electrons

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3 years ago

1. a) Binary ionic and binary molecular compounds have what two things that are similar in their composition? (b) What is one wa

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Binary compounds consist of only two distinct elements, regardless of whether the compound is ionic or molecular. Water is a binary compound, as are calcium chloride, ammonia, and potassium iodide.

<span>An ionic binary compound consists of cations of one element and anions of another. KI is an ionic binary compound, composed of K cations and I anions. </span>

<span>A molecular binary compound does not consist of discrete ions, but of molecules. H2O is molecular, as is NH3.</span>

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3 years ago

An atom of lithium (Li) and an atom of chlorine (Cl) engage in a chemical reaction.

jeka57 [31]

the resulting compound is Li+ -------- Cl- in a crystalline lattice structure.

so first choice is wrong as its not a double bond

third choice is wrong as its not a ball-and-stick

fourth choick is also wrong as its not a triple bond

correct ans is The chemical compound will have a network structure.

8 0

3 years ago

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