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Phoenix [80]
3 years ago
15

As the ionic compound decreases in size, the melting point __

Chemistry
1 answer:
telo118 [61]3 years ago
4 0

Answer:

A. increase

Explanation:

the smaller the size of the ionic compounds, the more closer they get packed together. This means electrostatic attraction also increases, which means the ionic bonds gets stronger...therefore increases the melting point

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Using 25 micromoles, pmoles, of CO2 consumed how many grams of glucose (MW = 180 g/mole) were produced?
Sladkaya [172]

Grams of glucose = 0.7488 mg=748.8 μg

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

6CO₂+6H₂O⇒C₆H₁₂O₆+6O₂

25 micromoles, μmoles, of CO₂ :

moles CO₂ : moles glucose - C₆H₁₂O₆ = 6 : 1, so :

\tt moles~glucose=\dfrac{1}{6}\times 25\mu~moles=4.16\mu~moles=4.16\times 10^{-6}~moles

mass of glucose

\tt mass=mol\times MW\\\\mass=4.16\times 10^{-6}\times 180\\\\mass=7.488\times 10^{-4}g=0.7488~mg=748.8\mu g

8 0
4 years ago
A chemist heats a gas within a sealed, rigid container. Which statement describes the changes that occur in the gas? (1 point)
Assoli18 [71]

When a gas is heated in a sealed container, the gas particles move faster and hit the sides of the container with more force leading to an increase in the pressure of the gas.

An increase in the temperature of a gas increases the collision rate of the molecules of the gas according to the kinetic theory.

With increased kinetic energy, the molecules of the gases collide more frequently with each other and the walls of the container.

The collision creates an increase in the magnitude of pressure inside the container.

More on the kinetic theory of gases can be found here: brainly.com/question/15354399?referrer=searchResults

6 0
3 years ago
What is the chloride anion
BigorU [14]
Chloride Ion is a chlorine anion that forms the negatively charged part of certain salts
4 0
3 years ago
Read 2 more answers
Using the atomic masses and relative abundance of the isotopes of nitrogen given below, determine the average atomic mass of nit
masha68 [24]

<span>To calculate the average mass of the element, we take the summation of the product of the isotope mass and the percent abundance. In this case, it is 0.9963 * 14.003 amu + 0.0037* 15.00 amu. This is equal to an average mass of 14.00668889 amu.</span>

8 0
3 years ago
Consider the reaction
Rama09 [41]

Answer:

D. 5.0

Explanation:

Step 1: Write the balanced equation at equilibrium

2 NO₂(g) ⇄ N₂O₄(g)

Step 2: Calculate the concentration equilibrium constant

The concentration equilibrium constant (Kc) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients.

Kc = [N₂O₄]/[NO₂]² = 0.2 / 0.2² = 5

3 0
3 years ago
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