Fernando places 50 mL of HCl in a 100 mL beaker and 50 mL of NaOH in a 100 mL beaker. he places them on a scale together and measures a combined mass of 15.00 grams. he then mixes the liquids together and waits five minutes while they react. to make the HCl used in the experiment, Fernando mixed 10 mL of HCl with 40 mL of water. what are the properties of this mixture? select all that apply.
A. The H2O is the solute.
B. The HCl is the solute.
C. TheHCL is the solvent.
D. The H2O is the solvent.
E. This mixture conducts electricity.
F. This mixture does not conduct electricity.
help!
Answers
Answer:
The correct options are:
B. The HCl is the solute.
D. The H₂O is the solvent.
E. This mixture conducts electricity.
Explanation:
For the preparation of the HCl solution, 10 mL of HCl and 40 mL of water were mixed.
The compound that is present in the solution in a smaller ratio is the solute and the other compount -present in higher ratio- is the solvent.
So, the solute is HCl and the solvent is water (H₂O). Furthermore, water is considered as an universal solvent (for most of the polar and ionic compounds). According to this, the following options are correct:
B. The HCl is the solute.
D. The H₂O is the solvent.
Then, a condition for a solution that is able to conduct electricity is the presence of ions in the solution. When HCl is dissolved in water, it dissociates in ions according to the following equilibrium:
HCl ⇔ H⁺ + Cl⁻
The ions H⁺ and Cl⁻ are electrically charged so the solution can conduct electricity. According to this, the following option is also correct:
E. This mixture conducts electricity.
Related Questions
Chemist preformed Reaction of solid magnesium burning and found that the mass of the magnesium oxide what is greater than the mass of the magnesium. What is the reason behind this increase in math reaction of solid magnesium burning and found that the mass of the magnesium oxide what is greater than the mass of the magnesium. What is the reason behind this increase in mass?
You want to prepare a solution with a concentration of 200.0μM from a stock solution with a concentration of 500.0mM. At your disposal, you have 5-mL and 10-mL transfer pipets and volumetric flasks of sizes 100, 250, 500, and 1000mL. Which of the following serial dilutions will give you the 200.0μM solution?
Many insulating materials contain spaces filled with air because air is what type of material?
10. The number of protons in an atom is determined by the?a. Symbolb. Atomic massc. atomic numberd. group or period
Answers
Answer:
stronger/ brighter, thats why red is first on the rainbow
Explanation:
Answer:
Longer.
Explanation:
The red end of the spectrum of light has longer wavelengths.
Answers
Answer:
-12
Explanation:
11 degrees fahrenheit = -11.6667
Rounded it the nearest thenth is -12
Answers
B. Density
C. Melting point
D. Color
Answers
Answer : The properties which would be the same among isotopes of the same element are Flammability and Color
Explanation :
Isotopes are the elements that have same number of electrons and protons but they differ in number of neutrons.
The chemical properties of an element are determined by its valence electrons and since isotope have same number of electrons, they have similar chemical properties.
But isotopes have different number of neutrons. Neutrons are the subatomic particles which are present in the nucleus. They are charge less particles and they have mass. Therefore when the elements have different number of neutrons, their atomic masses differ.
As a result, isotopes have different mass related physical properties.
Let us discuss the given properties now
1) Flammability : Flammability in simple words means the ability of the substance to catch fire or the ability to burn. This is mainly dependent on the reactivity which is in turn dependent on the number of electrons.
Since the isotopes have same number of electrons, they show similar flammability.
2) Density : Density is defined as mass per unit volume. This property involves mass and we know that isotopes have different masses. Therefore they have different densities too.
3) Melting point : Melting point is a physical property which is mainly dependent on the molecular weight of the substance. Since isotopes have different masses, they tend to show different melting points.
4) Color : The color of the element is mainly dependent on the arrangement of electrons around the nucleus. Isotopes have same number of electrons which means the arrangement would also be the same. Therefore the isotopes of the same element do not show different colors.
The properties which would be same among isotopes of the same element are
1) Flammability
4) Color
Answer: D. Color
Explanation: Founders Educere answer.
So much for expert verified^^ smh
B. One deciliter
C. One liter
D. One microliter
Answers
Answer:
d) one microliter
Explanation: The advantage of the SI (International system of measurements) is that everything is in base 10, and the prefix indicates the power of 10.
For the volume, the base unit is the liter.
one microliter = 0.000001 liter (one millionth, 1 / 1000000, of a liter)
one deciliter = 0.1 liter (one tenth, 1/10, of a liter)
one liter = 1 liter
one milliliter = 0.001 liter (one thousand, 1/1000, of a liter)
As you can see, a microliter is by far the smallest of these units.
Final answer:
The smallest volume unit among the given options (One milliliter, One deciliter, One liter, One microliter) is One microliter.
Explanation:
The volume of a substance is a measure of the space it occupies. In this case, we need to identify the smallest unit of volume from the given options. The unit, microliter (represented by µL), is the smallest volume unit among the options. Here's a quick breakdown:
- 1 milliliter (mL) = 1000 microliters (µL)
- 1 deciliter (dL) = 100 milliliters (mL) or 100000 microliters (uL)
- 1 liter (L) = 10 deciliters (dL) or 1000 milliliters (mL) or 1000000 microliters (µL)
So, the correct answer to your question is D. One microliter.
Learn more about Volume here:
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The groundhogs are hibernating.
The groundhogs migrated.
The groundhogs have died out.
The groundhogs are gathering food.
Answers
Answer:
The groundhogs are hibernating.
Explanation:
Groundhogs hibernate during the winter months and don't come out of their burrows.