What causes Earth's major wind patterns? Radiant energy from the sun strikes Earth unevenly. The Earth is spinning The density of ocean water changed wind patterns The latitudes of different areas​

Answer:

Formic acid titrated with ammonia (NH3) as a titrant

Explanation:

We have to look at something very critical here and that is, considering whether the acid/ base is strong or weak.

For a weak acid weak base titration, there is no suitable indicator neither is there any sharp pH range because no sharp change occurs. So, for a weak acid-weak base titration, there is only a very small change in pH at the equivalence point. This makes it impractical to carry out a weak acid- weak base titration.

Formic acid is a weak acid and ammonia is a weak base. Hence, Formic acid titrated with ammonia (NH3) as a titrant is a bad titration

Answer:

Expansion: increase in size Contraction: decrease in size

Explanation:

The increase in size of an object on heating is called expansion where as the decrease in size of an object on cooling is called contraction.

Answer:

37.6 Km/h

Explanation:

From the question given above, the following data were obtained:

Distance = 100 m

Time = 9.58 s

Speed =?

Next, we shall convert 100 m to Km. This can be obtained as follow:

1000 m = 1 Km

Therefore,

100 m = 100 m × 1 Km / 1000 m

100 m = 0.1 km

Next, we shall convert 9.58 s to h. This can be obtained as follow:

3600 s = 1 h

Therefore,

9.58 s = 9.58 s × 1 h / 3600 s

9.58 s = 2.66×10¯³ h

Finally, we shall determine the speed. This can be obtained as follow:

Distance = 0.1 km

Time = 2.66×10¯³ h

Speed =?

Speed = Distance / Time

Speed = 0.1 / 2.66×10¯³

Speed = 37.6 Km/h

Answer:

But because the Earth rotates, circulating air is deflected. Instead of circulating in a straight pattern, the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths. This deflection is called the Coriolis effect.

The Coriolis effect describes how Earth's rotation steers winds and surface ocean currents. ... The Coriolis effect causes the path of a freely moving object to appear to curve. This is because Earth is rotating beneath the object. So even though the object's path is straight, it appears to curve.

Explanation:

Answer:The ocean forms layers because the water has different density throughout. 2. Water with higher density sinks to the bottom while water with lower density sits on the top. ... Low-density water tends to be warmer and less saline, while high-density water is generally cooler and more saline.

Explanation:

Answer: oder has mass

Explanation:

Answer:

21 kJ/mol

Explanation:

Step 1: Given and required data

Step 2: Write the balanced equation at equilibrium

CO(g) + 2 H₂(g) ⇄ CH₃OH(g)

Step 3: Calculate the standard Gibbs free energy of the reaction (ΔG°)

We will use the following expression.

ΔG° = - R × T × ln Kc

ΔG° = - (8.314 J/K.mol) × 298 K × ln 2.1 × 10⁻⁴ = 2.1 × 10⁴ J/mol = 21 kJ/mol

Answer:

A

Explanation:

using

mC∆t

50×4.17×(91-56)

=50×4.17×35

=7297.5

~ 7298 J

Answer:

Explanation:

Given that:

The distillation is carried out at a pressure of 1 atm

The feed harbors 25% mole of methanol (z)

The total moles of feed is usually 100 moles

In the system, we have both methanol and water

Using the total mole balance for the distillation column.

Fz = Lx + Vy

where;

F = amount of feed

z = mole fraction of ethanol (in feed)

L = amount of liquid product out of the column

V = amount of vapor product out of the column

x = mole fraction of methanol out of the liquid

y  = mole fraction of methanol out of the vapor.

SO;

(a)

If all the feed is vaporized, then the vapor will likely have the same composition as the feed.

(b)

If no vaporization of the feed takes place, then the bottoms moving out of the column contains the same composition as the feed.

(c)

If 1/3 of the feed is vaporized; then 2/3 of the feed is at the bottom.

The balance equation would be:

[tex]Fz = (\dfrac{2}{3}F) x + (\dfrac{1}{3}F)y \\ \\ z = \dfrac{2}{3}x+\dfrac{1}{3}y[/tex]

Replacing z = 0.25; we have:

[tex]0.25 = \dfrac{2}{3}x+\dfrac{1}{3}y[/tex]

0.75 = 2x + y

(d)

If 2/3 of the feed is vaporized;

Then:

[tex]Fz = (\dfrac{1}{3}F) x + (\dfrac{2}{3}F)y \\ \\ z = \dfrac{1}{3}x+\dfrac{2}{3}y[/tex]

replacing z = 0.25

[tex]0.25 = \dfrac{1}{3}x+\dfrac{2}{3}y[/tex]

0.75 = x + 2y

Answer:

28 g of CaO

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated:

CaCO₃ —> CaO + CO₂

Next, we shall determine the mass of CaCO₃ that decomposed and the mass of CaO produced from the balanced equation. This can be obtained as follow:

Molar mass of CaCO₃ = 40 + 12 + (16×3)

= 40 + 12 + 48

= 100 g/mol

Mass of CaCO₃ from the balanced equation = 1 × 100 = 100 g

Molar mass of CaO = 40 + 16

= 56 g/mol

Mass of CaO from the balanced equation = 1 × 56 = 56 g

SUMMARY:

From the balanced equation above,

100 g of CaCO₃ decomposed to produce 56 g of CaO.

Finally, we shall determine the mass of CaO that will be obtained by the decomposition of 50 g of CaCO₃. This can be obtained as follow:

From the balanced equation above,

100 g of CaCO₃ decomposed to produce 56 g of CaO.

Therefore, 50 g of CaCO₃ will decompose to produce = (50 × 56)/100 = 28 g of CaO.

Thus, 28 g of CaO were obtained from the reaction.

Answer: A. HNO3

Explanation:

251 mol Xe

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 1.51 × 10²⁶ atoms Xe

[Solve] moles Xe

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rule and round. We are given 3 sig figs.

250.747 mol Xe ≈ 251 mol Xe

Answer:

A

Explanation:

Answer:

the sun , option A hope it helps

Answer:

NaHCO3 + HCl = NaCl + H2O + CO2

Explanation:

The total number of atoms of each element on either side of the equation must be equal.

Answer:

(1) (NH₄)₂SO₄(aq) + BaCl₂(aq) ⇒ BaSO₄(s) + 2 NH₄Cl(aq)

(2) 2 NH₄⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2 Cl⁻(aq) ⇒ BaSO₄(s) + 2 NH₄⁺(aq) + 2 Cl⁻(aq)

(3) SO₄²⁻(aq) + Ba²⁺(aq) ⇒ BaSO₄(s)

(4) NH₄⁺ and Cl⁻

Explanation:

(1) Let's consider the molecular equation that occurs after mixing aqueous ammonium sulfate solution and barium chloride solution. This is a double displacement reaction.

(NH₄)₂SO₄(aq) + BaCl₂(aq) ⇒ BaSO₄(s) + 2 NH₄Cl(aq)

(2) The complete ionic equation includes all the ions and insoluble species.

2 NH₄⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2 Cl⁻(aq) ⇒ BaSO₄(s) + 2 NH₄⁺(aq) + 2 Cl⁻(aq)

(3) The net ionic equation includes only the ions that participate in the reaction (not spectator ions) and the insoluble species.

SO₄²⁻(aq) + Ba²⁺(aq) ⇒ BaSO₄(s)

(4) The spectator ions are NH₄⁺ and Cl⁻.

Hello! Here is your answer!

Crust, Upper Mantle, Lower Mantle, Outer Core

I hope this helped if it did please mark brainlist!

Answer:

They are in order from exterior to the interior - the crust, the mantle, the outer core, and the inner core.

Explanation:

tgggghhhhijyyhhjjjjjjjj

Answer:

compound composed of cations and anions the forces of attraction that bind oppositely charged ions together - ionic compound

lowest whole-number ratio of ions in an ionic compound - formula unit

a depiction of the valence electrons as dots around the symbol for an element - electron dot structure

a mixture of two or more elements, at least one of which is a metal - alloy

the attraction of the free-floating valence electrons for the positively charged metal - metallic bond

ions of the halogen atoms - halide ions

the electron(s) in the highest occupied energy level of an atom - valence electrons

the number of ions of opposite charge that surround each ion in a crystal - coordination number

Atoms in a compound tend to have the electron configuration of a noble gas - octet rule

Shows the kinds and numbers of atoms in the smallest representative unit - chemical formula

Explanation:

An ionic compound is composed of oppositely charged ions held together in a crystal lattice. The lowest whole-number ratio of ions in an ionic compound is known as the formula unit.  The number of ions of opposite charge that surround each ion in a crystal is called the coordination number. Ions of the halogen atoms  are negatively charged and are called halide ions

Elements are composed of atoms, the electron(s) in the highest occupied energy level of an atom are called valence electrons. In metals, the attraction of the free-floating valence electrons for the positively charged metal is called the metallic bond. For atoms of elements, a depiction of the valence electrons as dots around the symbol for an element is called the electron dot structure or Lewis structure.

A combination of elements may be a compound or an alloy. An alloy usually contains at least one metal. For compounds, the chemical formula Shows the kinds and numbers of atoms in the smallest representative unit. Atoms form compounds because atoms in a compound tend to have the electron configuration of a noble gas this is the octet rule.

The correct match of the given statement are 1 - f. ionic compound, 2- d. formula unit, 3 - e. electron dot structure, 4- b. alloy, 5- k. metallic bond, 6- a. halide ions, 7- j. valence electrons, 8- h. coordination number, 9 - c. octet rule, 10- i. chemical formula.

Ionic compounds are made up of oppositely charged ions that are kept together in a crystal lattice. The formula unit is the lowest whole-number ratio of ions in an ionic compound.  

The coordination number is the number of ions with opposite charges that surround each ion in a crystal. Halide ions are halogen atom ions that are negatively charged.

Elements are made up of atoms, and the electron(s) in the atom's highest occupied energy level are known as valence electrons. The metallic bond refers to the attraction of free-floating valence electrons to positively charged metals in metals.

The electron dot structure or Lewis structure is a representation of the valence electrons as dots around the symbol for an element for atoms.

A compound or an alloy is a mixture of components. A metal is frequently present in an alloy.

The chemical formula is used for compounds. The types and numbers of atoms in the smallest representative unit are displayed.

The octet rule states that atoms in a compound tend to have the electron configuration of a noble gas.

Therefore, the correct matches are: 1 - f. ionic compound, 2- d. formula unit, 3 - e. electron dot structure, 4- b. alloy, 5- k. metallic bond, 6- a. halide ions, 7- j. valence electrons, 8- h. coordination number, 9 - c. octet rule, 10- i. chemical formula.

Learn more about ionic compound, here:

https://brainly.com/question/30420333

#SPJ6

The given question is incomplete, so the most probable complete question is,

Match the correct statement with their appropriate terms:

Answer:

t=1980C AND T>1980C

Explanation:

Answer:

Mass percentage 6.4967

Explanation:

I had some study notes

Answer:

C is the false one atoms contain chemical bonds

Answer:

C. Atoms contain chemical bonds.

Reason:

Atoms don't have any chemical bonds. Molecules are the particles have chemical bonds.

Answer:

766ijn

Explanation:

hovibibbunununububububyhybyybybnu

Answer:

8.90

Explanation:

because I calculated it

Answer:

Solution of an unknown concentration that has another solution slowly added to it Analyte.

A reagent added to the analyte solution that changes color when the reaction is complete Indicator .

Glassware that allows a solution to be precisely and slowly added to another solution burette.

Solution of known concentration that is slowly added to a solution of unknown concentration titrant.

When the required amount of one solution has been added to the second solution to complete the reaction end point.

Process of slowly adding a solution to react with another solution and determine the concentration of one of the solutions based on the reaction between them  Titration.

Answer:

displacement reaction

Explanation:

more reactive sodium displaces lithium

NaCl + LiF ⇒ NaF + LiCl

Answer:

ewan ko po

Explanation:

sana makatulong

Explanation:

1. Pb(CO3)2

Element Number Mass Percet Composition

Oxygen 6 16.00 29.34%

Carbon 2 12.01 7.34%

Lead 1 207.21 63.32%

2. Ga(OH)3

Element Number Mass Percet Composition

Hydrogen 3 1.0079 2.50%

Oxygen. 3 16.00 39.75%

Gallium 1 69.72 57.74%

3. P4O10

Element Number Mass Percet Composition

Oxygen. 10 16.00. 56.36%

Phosphorus. 4 30.97 43.64%

4. Ca3P2

Element Number Mass Percet Composition

Phosphorus 2 30.97 34.00%

Calcium. 3 40.08 66.00%

5. Ti(NO3)3

Element Number Mass Percet Composition

Oxygen. 9 16.00 61.56%

Titanium. 1 47.87 20.47%

Nitrogen. 3 14.01 17.97%

Answer:

The top layer was the organic layer.

9-fluorenone was most soluble in the organic layer.

Deprotonated chloroanilic acid was most soluble in the aqueous layer.

The bottom layer was the aqueous layer.

The organic layer was a yellow colored solution.

The aqueous layer turned into a pink colored solution.

Answer:

46.0g of Iron are produced

Explanation:

Based on the chemical reaction:

FeO(l) + Mg(l) → Fe(l) + MgO(s)

1 mole of Iron (II) oxide reacts per mole of Mg to produce 1 mole of iron

To solve this question we need to convert each mass of reactant to moles using its respectives molar masses in order to find limitng reactant. Moles of limiting reactant = Moles of iron produced:

Moles FeO (Molar mass: 71.85g/mol):

80.0g * (1mol / 71.85g) = 1.11moles FeO

Moles Mg (Molar mass: 24.305g/mol)

20.0g * (1mol / 24.305g) = 0.823 moles Mg

As moles of Mg < Moles FeO, Mg is limiting reactant and the moles of Fe are 0.823 moles.

The mass of Iron produced is:

0.823 moles Fe * (55.845g/mol) =

46.0g of Iron are produced

Answer:

the volume of the gas will decrease