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4 years ago

How does chemistry affect the food you eat

1 answer:

8 0

When stress, toxins or lack of essential nutrients weaken digestion, harder to digest foods like grains and cow dairy, meat and processed foods contribute to maldigestion, dysbiosis and impaired digestive competence.

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Which of the following describes a species with the greatest fitness?

Mrac [35]

Answer:

C is it!

Explanation:

8 0

3 years ago

Calculate the equilibrium constant for the reaction below given that [Cl2] = 0.37 M, [H2] = 0.27 M, and [HCl] = 0.95 M at equili

cluponka [151]

Answer:

The equilibrium constant is 9.034.

Explanation:

Every reversible chemical reaction, as in this case, occurs in both directions: the reagents are transformed into products (direct reaction) and the products are transformed back into reagents ( reverse reaction).

The general way in which a reversible reaction can be written is:

aA + bB ⇔ cC + dD

where A, B, C and D represent the chemical species involved and a, b, c and d their respective stoichiometric coefficients.

The chemical equilibrium is the state in which the direct and indirect reaction have the same reaction rate, and is expressed by a constant Kc. This constant is defined as:

$Kc=\frac{[A]^{a}*[B]^{b} }{[C]^{c} *[D]^{d} }$

This constant is equal to the multiplication of the concentrations of the products elevated to their stoichiometric coefficients divided the multiplication of the concentrations of the reactants elevated to their stoichiometric coefficients. In Kc only gases and aqueous solutions come into play and only depends on the temperature.

You have the reaction:

Cl₂(g) + H₂(g) ⇌ 2 HCl(g)

So, in this case, the constant Kc is:

$Kc=\frac{[HCl]^{2} }{[Cl_{2} ]*[H_{2}] }$

Then:

$Kc=\frac{(0.95 M)^{2} }{0.37 M*0.27 M}$

Kc= 9.034

<u><em>The equilibrium constant is 9.034.</em></u>

7 0

3 years ago

3. What is the frequency of a photon that has 3.82 x 10^-20 J of energy?

NNADVOKAT [17]

Answer:bto the power of 5

Explanation:3. What is the frequency of a photon that has 3.82 x 10^-20 J of energy? 

8 0

3 years ago

Which of the following elements will tend to form an anion?

JulsSmile [24]

Metals usually form cations because they like to lose electrons to get a full octet.
Nonmetals usually form anions because they like to gain electrons to get a full octet.

Aluminum will lose 3 electrons to form a cation
Beryllium will lose 2 electrons to form a cation
Copper can lose either 1 or 2 electrons to form a cation.
Silicon can gain 4 electrons to form an anion.

Your correct answer is silicon.

8 0

3 years ago

How many electrons did magnesium give to each chlorine atom

Aleks [24]

In an ionic bond, electrons are given and taken from atom to atom. Magnesium is +2 and Chlorine is -1 . The two chlorine atoms receive one electron each

5 0

3 years ago