draw the condensed formula of 2 - methyl pentane - 1 ol ?​

Balanced equation

2Pb(NO₃)₂⇒2PbO+4NO₂+O₂

Given

Reaction

Pb(NO₃)₂⇒PbO+NO₂+O₂

Required

Balanced equation

Solution

Pb(NO₃)₂⇒aPbO+bNO₂+cO₂

Pb, left=1, right=a⇒a=1

N, left=2, right=b⇒b=2

O, left=6, right=a+2b+2c⇒6=1+2.2+2c⇒6=5+2c⇒1=2c⇒c=1/2

The reaction becomes :

Pb(NO₃)₂⇒PbO+2NO₂+1/2O₂ x2

2Pb(NO₃)₂⇒2PbO+4NO₂+O₂

Answer:

There are 1.57 * 10²² bromide ions present in 3.5 g of AgBr₂

Explanation:

Equation for the ionization of silver bromide, AgBr2 is given below

AgBr₂ ----> Ag²⁺ + 2Br⁻

1 mole of AgBr2 produces 2 moles of bromide ions

molar mass of silver bromide 268 g/mol

molar mass of bromide ion 80 g/mol

number of moles in 3.5 g of AgBr₂ = mass/molar = 3.5 / 268 = 0.013 mole

0.013 moles of AgBr₂ will produce 2 * 0.013 moles of Br⁻ = 0.026 moles

One mole of a substance contains 6.02 * 10²³ particles. Therefore, one mole of bromide ions will contain 6.02 * 10²³ ions.

Number of ions present in 0.026 moles of bromide ions = 0.026 * 6.02 * 10²³ = 1.56 * 10²² ions.

Therefore, there are 1.57 * 10²² bromide ions present in 3.5 g of AgBr₂

Answer:

True

Explanation:

Answer:

The bowling ball will remain in motion until an unbalanced force acts on the bowling ball. ... When the ball hits the pins, they push on the ball with the same amount of force in the opposite direction. This means that the ball will slow down, and the pins will fall, which is the reaction.

Explanation:

Answer: His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.

Explanation: this means that when you throw the ball the wind pushes against the ball and so does the bolling pints.

Answer:

volcanos i think

Explanation:

learned it in 6th grade

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{9.15 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.151993...[/tex]

We have the final answer as

Hope this helps you

Answer:

sorry but we can't answer without the  pic

Explanation:

Answer:

It is a homogenious mixture because it has the same consistency throughout. It is just a frozen block of juice. Think about it. It also has the same substance throughout.

Explanation:

Answer:

-1160kj/mol

Explanation:

the reaction is exothermic because heat is released to the environment

Answer:

A Cell

Explanation:

Answer:

Cell

Explanation:

The cell is the smallest structural and functional unit in living organisms that can live on its own. It is also considered the building block of creation.

Answer:

X is your answer Have a good day

Explanation:

The pyruvate molecules from glycolysis next enter the matrix of a mitochondrion. That's where the second stage of cellular respiration takes place. This stage is called the Krebs cycle. During this stage, two more molecules of ATP are produced

Answer:

z

Explanation:

Answer:

Changing states of matter and energy

A block of ice is solid water. When heat (a form of energy) is added, the ice melts into liquid water. ... Continue to cool the water (by removing heat), and it becomes solid ice. This is its freezing point.

Answer:

b

Explanation:

Answer:

On heating, calcium reacts with hydrogen, halogens, boron, sulfur, carbon, and phosphorus.

Explanation:

Electron configuration: 1s22s22p63s23p64s2

Atomic number: 20

Atomic weight: 40.078

Oxidation state: +2

Answer:

The given equation not following the law of conservation of mass.

Explanation:

H₂ + O₂ →  H₂ O

The number of oxygen atoms on both side of equation are not equal thus mass is not conserved and this equation not follow the this law.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

2H₂ + O₂ →  2H₂ O

there are two oxygen atoms and four hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

Answer:

I think it's atomic number?

Explanation:

Really sorry if that's wrong

Answer:

C

Explanation:

Hope this helps Mrs. or Sir

Answer:

c.  Ca3N2

Explanation:

oops pls forgive me I accidentally did the wrong question.

Answer:

C

Explanation:

Reduction is a chemical reaction that involves the gaining of electrons by one of the atoms involved in the reaction between two chemicals. The term refers to the element that accepts electrons, as the oxidation state of the element that gains electrons is lowered.

AnswerElement Symbol # of Atoms

Magnesium Mg 1

Oxygen O 4

Sulfur S 1

:

Explanation:

Answer:

No

Explanation:

There are vaccines, to prevent it, made by Dr. Fauci, but no cure

Answer:

Decantation

Explanation:

Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.

Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.

Answer:

A.  It has a low pH

Explanation:

pH scale is 0 to 14 with 7 being neutral.  Any thing below 7 is acidic  Above 7 is a base or alkaline

Lower the pH the more careful you must be when handling the chemical.  Strong Acid can do irreparable harm to eyes, skin, mucus membranes, eat holes in clothing etc.  USE APPROPRIATE PPE

Below is pasted in definition you can look up in your textbook or online search.

pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

The label of a strong acid is referring a chemical that has a low pH value. Therefore, option (A) is correct.

An acid can be defined as any substance that has the ability to donate a proton to another substance. A base has the capability to accept a hydrogen ion from an acid.

Acidic substances are recognized by their sour taste and can be energetically favorable after a loss of hydrogen H⁺ ion. Bases are recognized by a bitter taste and can dissolve in water.

When bases combine with acids, they form salts and water as products. Bases turn red litmus paper into blue while acids turn blue litmus into the red.

The pH value of the acids on the pH scale lies between 0 to 7 and the pH value of the bases on the pH scale lies between 7 to 14.  Therefore, the given chemical is strong acid so it will have a low pH value.

Learn more about acids and bases, here:

brainly.com/question/3941445

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Answer:

??

Explanation:

Answer: the first option

Explanation:

Direction has nothing to do with the speed/ kinetic energy

Answer: A

Explanation: