What is the correct label for a solution? A. a homogeneous mixture B. a graduated substance C. a heterogeneous mixture D. a primary mixture of elements

Answers

Answer 1

Answer:

The correct label for a solution is; a homogeneous mixture. Option A is correct.

A solution is a type of homogeneous mixture. A homogeneous mixture is one in which the components are uniformly distributed and evenly mixed at a molecular or atomic level. In other words, all parts of the mixture are the same throughout, and there are no visible boundaries or distinct phases between the different components.

In a solution, one or more substances, called solutes, are dissolved in a solvent. The solute(s) become uniformly dispersed at the molecular or atomic level within the solvent, creating a single phase with consistent properties. This even distribution is achieved through the interactions between the solute particles and the solvent particles.

Examples of solutions include;

Saltwater: Sodium chloride (salt) is dissolved in water (solvent) to create a homogeneous solution.

Sugar water: Sucrose (sugar) is dissolved in water to form a homogeneous mixture.

Solutions are essential in various applications, such as in chemistry, biology, medicine, and everyday life. They are commonly encountered and used for various purposes, including in cooking, pharmaceuticals, cleaning agents, and many industrial processes.

Hence, A. is the correct option.

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Answer 2

Answer: The answer is A. Answers B, C, and D are incorrect. A and C sound similar but are different in many ways. Source- I took this test. Answer A

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Which of these substances is a compound Carbon
Chlorine
Uranium
Ammonia

Answers

Among the substances listed, ammonia (NH3) is a compound. The option D (ammonia) is the correct option.

Compound Substance

A compound substance refers to a type of substance that is composed of two or more different elements chemically combined in fixed proportions. In other words, it is a substance formed when atoms of different elements bond together to form molecules. The elements in a compound substance are chemically bonded, meaning they are held together by chemical forces such as covalent bonds, ionic bonds, or metallic bonds.

Compounds can have various physical forms, such as solids, liquids, or gases, depending on the specific elements and the nature of their chemical bonds. They can also exhibit a wide range of chemical and physical properties, such as melting point, boiling point, density, solubility, and reactivity.

Chemical formulas are used to represent compound substances, indicating the types and numbers of atoms present in a molecule of the compound. For example, the chemical formula for water is H2O, representing two hydrogen (H) atoms bonded to one oxygen (O) atom. Ammonia is composed of nitrogen (N) and hydrogen (H) atoms bonded together. Carbon (C), chlorine (Cl), and uranium (U) are elements rather than compounds.

Therefore, Ammonia which is option D is the correct option.

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Answer:

Ammonia

Explanation:

Ammonia is a inorganic compound that is made up of single nitrogen atom.

Please help!!!The reaction of sulfuric acid (H2SO4) with potassium hydroxide (KOH) is described by the equation below. Suppose
0.06 L of KOH with unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.20 M
H2504 is dripped into the KOH solution. After exactly 0.017 L of H2SO4 is added, the Indicator changes from blue to
yellow. What is the concentration of the KOH? You must show all of your work to earn credit. (4 points)
H2SO4 + 2KOH → K2SO4 + 2H20

Answers

Answer:

$\large\boxed{\large\boxed{1M}}$

Explanation:

1. Reaction

$H_2SO_4+2KOH\rightarrow K_2SO_4+2H_2O$

2. Mole ratio

$(2molKOH)/(1molH_2SO_4)$

3. Sulfuric acid

$Molarity=(moles)/(volume(liters))$

$Moles=Molarity* Volume(liters)$

$Moles=0.20M* 0.017liter=0.034molH_2SO_4$

4. Potassium hydroxide

$(2molKOH)/(1molH_2SO_4)* 0.034molH_2SO_4=0.068molKOH$

$Molarity=(0.068mol)/(0.06liter)=1.13M\approx 1M$

How would you distinguish a scientific theory from a scientific law?

Answers

a theory is something that is yet to be proven and a law is proven and can be reproduced

Is ammonium permanganate ionic or covalent.

Answers

Answer:

ammonium (If this helped, pls make me brainiest! Have a good day and i hope this helped! :D)

Explanation:

If a substance is a mineral, how could you identify what type of mineral it is?

Answers

Two methods are the scratch and acid tests.

Scratch test: Scratching the mineral with various objects, then checking them against a hardness index.

Acid test: Dropping hydrochloric acid on the mineral. If it fizzes, the mineral is limestone.

Unscramble the word. Lncsuoicno

Answers

The word can be conclusion, but it can't be if the ''L'' is capitalized

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