What is refraction? * Bending of light
Reflection of light

Answer:

solvent

Explanation:

Answer:

D, E, A, B, C

Explanation:

The weakest base would be Cl- because HCl is a stronger acid than that of H3O+ from which the water is formed.

Also, for NH3 is a stronger acid than +NH4. Reason is that oxygen is more electronegative than nitrogen and thus NH3 is a stronger acid than NH4+.

The stronger, the acid, the weaker its conjugate base. Thus, NH3 is a weaker base than NH4.

NH2- has the highest basicity because nitrogen is less of an electronegative element than is oxygen. Therefore, it will not want a negative charge.

Hence, the final order in terms of increasing basicity is;

Cl-, H20, NH3, NH4, NH2-

Answer:

a. changes with temperature.

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the equilibrium constant in terms of the Gibbs free energy of reaction and the temperature of the system:

[tex]lnK=-\frac{\Delta G}{RT}[/tex]

It is possible to figure out that the equilibrium constant varies as temperature does, not only on the aforementioned definition, but also in the Gibbs free energy as it is also temperature-dependent. Therefore, the appropriate answer is a. changes with temperature.

Best regards!

Answer:

0.012 M

Explanation:

The reaction that takes place is:

First we convert 32 mg of H₂C₂O₄ to moles, using its molar mass:

Then we calculate how many NaOH moles would react with that amount, using the stoichiometric coefficients:

Finally we divide NaOH moles by the used volume, to calculate the molarity:

Answer:

COMMENSALISM

Explanation:

Commensalism refers to the relationship that exists between two different organism that belong to different species. In this relationship neither of the organisms are harmed while either of them is benefitted. The web made by the spider between the horns of the deer increases the probability of the spider to catch its prey. The random movement of the deer helps the spider and at the same time it do not harm the deer.

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

C. 8.80 mol H₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[RxN - Balanced] N₂ (g) + 3H₂ (g) → 2NH₃ (g)

[Given] 100 g 2NH₃

[Solve] moles H₂

Step 2: Identify Conversions

[RxN] 2 mol NH₃ (g) → 3 mol H₂ (g)

[PT] Molar Mass of N - 14.01 g/mol

[PT] Molar Mass of H - 1.01 g/mol

Molar Mass of NH₃ - 14.01 + 3(1.01) = 17.04 g/mol

Step 3: Stoich

Answer:

The answer is C!

Explanation:

Hope it helps

Answer D

Explanation: did the quiz ψ(｀∇´)ψ

Answer:

Blue: Because violet really has the most and blue is based on violet!

Explanation:

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Answer:

[tex]3.2 \div 22.4 = \frac{1}{7} mol \: no[/tex]

[tex]4.3 \div 32 = 0.134mol \: o2[/tex]

Explanation:

NO is limit reactant so:

1÷7×46=6.57 grams of NO2 will form

0.31 L

Math

Pre-Algebra

Equality Properties

Chemistry

Atomic Structure

Aqueous Solutions

Equilibrium - Acid/Base

Step 1: Define

[Given] 3.5 M HCl

[Given] 1.1 moles

[Solve] Liters solution

Step 2: Solve

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs.

0.314286 L ≈ 0.31 L

Answer: 9.46

Explanation: in LiOH solution concentration of OH- ions is 2.88·10^-5 M

And pOH = -log( 2.88·10^-5 M) = 4.54. Because PH + pOH = 14.00

Then pH = 14-4.54

Answer:

CH₂

Explanation:

First we convert the given masses of elements into moles, using their respective molar masses:

Now we divide those results by the lowest value between the two of them:

Meaning the empirical formula is CH₂.

Answer:Inertia is the property of a body to remain at rest or to remain in motion with constant velocity. Some objects have more inertia than others because the inertia of an object is equivalent to its mass.

Explanation:

Answer:

Inertia

Explanation:

Inertia is the property of a body to remain at rest or to remain in motion with constant velocity.

Answer:

[tex]0.5594\ \text{L}[/tex]

Explanation:

Mol of NaI = 0.405 mol

Molarity of solution = 0.724 M

Molarity is given by

[tex]M=\dfrac{\text{mol}}{\text{Volume of solution in }NaI}\\\Rightarrow \text{Volume of solution in }NaI=\dfrac{0.405}{0.724}\\\Rightarrow \text{Volume of solution in }NaI=0.5594\ \text{L}[/tex]

The required volume is [tex]0.5594\ \text{L}[/tex].

Answer:

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.

Each row represents one period; the period number of an element indicates how many of its energy levels house electrons. Sodium, for instance, sits in the third period, which means a sodium atom typically has electrons in the first three energy levels.

Explanation:

Answer:

C. Energy is absorbed as bonds form and is released as bonds break.

Explanation:

In chemistry, when a bond is broken energy is released, while and bond formation is a process that requires energy -meaning energy is absorbed-.

It is for this reason that reactions of the type A + B → C are endothermical, while reactions of the type C → A + B are exothermical.

Answer:

fcgvgbjbbbh,bbb bbnnnnmnbb nbmm   m  cccg   n mm

Explanation:

Answer:

Explained below.

Explanation:

A tennis player with two sneakers wouldn't bond to any other tennis player because he is already stable and complete with the 2 and doesn't need another players assistance to make him stand well.

However, helium atom with two electrons wouldn't bond to any other atoms because it is stable. This stability arises from the fact that it has two protons and 2 electrons, of which the 2 electrons completely fill its valence shell/outer most shell to make it neutral.

Answer:

Empirical evidence - B - helps scientists understand the natural world.

Explanation:

Definition from the web," Empirical evidence is information acquired by observation or experimentation. Scientists record and analyze this data. The process is a central part of the scientific method. "

The scientific method begins with scientists forming questions, or hypotheses, and then acquiring the knowledge through observations and experiments to either support or disprove a specific theory. "Empirical" means "based on observation or experience," according to the Merriam-Webster Dictionary. Empirical research is the process of finding empirical evidence. Empirical data is the information that comes from the research.

Before any pieces of empirical data are collected, scientists carefully design their research methods to ensure the accuracy, quality and integrity of the data. If there are flaws in the way that empirical data is collected, the research will not be considered valid.

The scientific method often involves lab experiments that are repeated over and over, and these experiments result in quantitative data in the form of numbers and statistics. However, that is not the only process used for gathering information to support or refute a theory.

Identifying empirical evidence in another researcher's experiments can sometimes be difficult. According to the Pennsylvania State University Libraries, there are some things one can look for when determining if evidence is empirical:

Answer:

Because their cells duplicate inside of you not normally!

Explanation:

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where is the selections?

Answer:

KCl and Ba(OH)₂.

Explanation:

Hello there!

In this case, since electrolytes are substances characterized by presence of covalent bonds between the atoms forming the compound, it is possible to realize that just KCl and Ba(OH)₂ as they are species composed by cations (K and Ba) and anions (OH and Cl); therefore, they have the capacity to get ionized in aqueous solution and thus transfer electricity when present.

Best regards!

The solution containing electrolytes is the flask of KCI and [tex]Ba(OH)_2[/tex].

The correct options are a and c.

An electrolyte is a medium that contains ions and conducts electricity through the movement of ions, but not electrons.

They are minerals present in the body, that are electrically charged.

Electrolytes help in maintaining the water balance in the body, and pH of the body.

The three primary electrolytes are sodium, potassium, and chloride.

Thus, the correct options are a, KCI, and b, [tex]Ba(OH)_2[/tex].

Learn more about electrolyte

https://brainly.com/question/14566383

Answer:

Answer:

Arteries

Explanation:

Answer:         arteries.    :)

Explanation:

the top one is right trust me and i took the test.      :)

have agreat day.     :)