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3 years ago

Probability is a number that describes how likely it is that a certain event will occu O True O False

Chemistry

1 answer:

lara31 [8.8K]3 years ago

6 0

Answer:

Between 0 and 1

Explanation:

Hope this helps :)

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What is the equation for calculating gravitational potential energy on the Earth

DedPeter [7]

Gravitational potential energy = mass x g x height

(The g is measured in N/kg and is usually 9.8 or 10)

Full info in picture below:

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3 years ago

Write the equilibrium constant expression for the following reaction in terms of concentrations of the components. (Concentratio

timofeeve [1]

Answer: The expression for equilibrium constant in terms of concentration is $K_c=[CO_2]$

Explanation:

Equilibrium constant in terms of concentration is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients. It is represented by $K_{c}$

For a general chemical reaction:

$aA+bB\rightarrow cC+dD$

The $K_{c}$ is written as:

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

The concentration of pure solids and pure liquids are taken as 1.

For the given chemical reaction:

$MgCO_3(s)\rightarrow MgO(s)+CO_2(g)$

The expression for $K_{c}$ is:

$K_{c}=\frac{[MgO][CO_2]}{[MgCO_3]}$

In the above expression, magnesium oxide and magnesium carbonate will not appear because they are present in solid state.

So, the expression for $K_c$ becomes:

$K_{c}=[CO_2]$

Hence, the equilibrium constant for the reaction is given above.

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3 years ago

The characteristics that best describe the tail of a phospholipid molecule are _____?

Furkat [3]

According to its definition, the answer is: The characteristics that best describe the tail of a phospholipid molecule are a. neutral charge, nonpolar, and hydrophobic

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3 years ago

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A box experiences a force of 2 N to the left and 3 N to the right. Which is true of the box's motion?

denis23 [38]

The box is expected to go to the right since the 3N is stronger than the 2N and the rightward force will over come the leftward force.

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4 years ago

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Which statements describes why ethyl methyl ether (b.p. 7.9°C) and 1-propanol (b.p. 97.2°C) have such different boiling points d

Lelu [443]

Answer:

B) 1-propanol has more hydrogen bonding than ethyl methyl ether.

Explanation:

1-propanol and ethyl methyl ether look very similar but have very different boiling points. They both have three carbon atoms but ethyl methyl ether has an oxygen atom.

Ethyl methyl ether has both London dispersion forces and dipole-dipole interactions.

1-Propanol has London dispersion forces, dipole-dipole interactions and hydrogen bonding.

1-propanol has more hydrogen bonding than ethyl methyl ether which explains why they both have different boiling points.

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3 years ago

Probability is a number that describes how likely it is that a certain event will occu O True O False​

Probability is a number that describes how likely it is that a certain event will occu O True O False