The compound cobalt (II) sulfate forms a hydrate with seven water molecules per formula unit. What are the name and formula of the hydrate

Better temperatures can growth the quantity of water vapor withinside the air, that could growth the probability of precipitation.

Different factors, inclusive of air pressure, wind, and atmospheric instability, additionally play a function withinside the formation of rain, and the connection among temperature and precipitation may be complicated. The temperature of atmospheric gases could have a substantial effect at the manufacturing of rain. The environment is a complicated device that performs a vital function with inside the Earth`s water cycle, which incorporates the system of precipitation, inclusive of rain. Precipitation takes place while water vapor with inside the air condenses into liquid droplets or ice crystals, which fall to the floor as rain, snow, or hail. The temperature of the environment impacts the quantity of water vapor that the air can preserve. As temperature increases, the air can preserve extra water vapor, that could cause better tiers of humidity. When the air will become saturated with water vapor, it reaches its dew point, and the extra water vapor condenses into liquid droplets or ice crystals, that could shape clouds and subsequently precipitation. In addition, international warming, that's inflicting an growth in atmospheric temperatures, can cause modifications in precipitation styles and extra severe climate events. Understanding the connection among temperature and precipitation is vital for predicting and mitigating the affects of weather change.

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Half a mole of O2 will remain after combining one mole of H2 and one mole of O2. Set up the hydrogen to water conversion factor at this time. 2.5 moles of 2 H2O/ 2 H2 Theoretically, H2 is created from 3.5 moles of H2O.

Worrisome moles, on the contrary hand, are asymmetrical, which means that when split in half, both of them sides do not appear the same. Normally, the border of benign moles is uniformly circular.

Why moles suddenly emerge in adulthood is unknown to researchers. The majority of these benign conditions are brought on by aging, prescription drug usage, sun exposure, sunburn, and genetic abnormalities.

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Answer:

The mass of all atoms is compared to the carbon atom

Answer: b because Potential energy is converted to kinetic energy as a stationary object begins to move.

Explanation:

The mole of the substance, given the data from the question is 0.0014 mole

This is simply defined as the mole of solute per kilogram of water. Mathematically, it is expressed as

Molality = mole / mass (Kg) of water

Mole = molality × mass of water

Mole of substance = 0.056 × 0.0254

Mole of substance = 0.0014 mole

Thus, the mole of the substance is 0.0014 mole

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Answer:

you can see the empirical formula at the pic

The empirical formula for compound (a) is NiI2, (b) is BaBr2 and (c) is BeS.

Empirical formula of a compound is defined as the simplest whole number ratio of atoms present in a compound.

(a) 1.245 g Ni : 5.381 g I

Mole of Ni ; Mole of I = 1.245/59 : 5.381/127 = 0.02 : 0.04 = 1:2

So the formula is NiI2

(b) 2.677 g Ba : 3.115 g Br

Mole of Ba : Mole of Br = 2.677/137 : 3.115/60 = 0.019 : 0.038

= 0.02 : 0.04 = 1:2

So the formula is BaBr2

(c) 2.128 g Be : 7.557 g S

Mole of Be : Mole of S = 2.128/9 : 7.557/32 = 0.2 : 0.2 = 1:1

So the formula is BeS

Thus, empirical formula for compound (a) is NiI2, (b) is BaBr2 and (c) is BeS.

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Answer:

28.085

Explanation:

The formular to obtain average atomic mass unit from isotopes is given as;

sum of (Percentage abundance * Atomic mass) of all isotopes =  Average atomic mass unit

Silicon 28 = 92.23%

Silicon 29 = 4.67%

Silicon 30 = 3.1%

(92.23 / 100  *  27.977) + (4.67 / 100  *  28.976)  +  (3.1 / 100  * 29.974) = Average atomic mass

Average atomic  mass = 25.803 + 1.353 + 0.929 = 28.085

Answer:

B) It can have different compositions, but it has a set of characteristics that does not change.

Explanation:

On e d g e n u i t y

I believe the answer is d lmk if  im  wrong or right

Answer: ENERGY: A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another; the levels in the food chain are producers, primary consumers, higher-level consumers, and finally decomposers. These levels are used to describe ecosystem structure and dynamics.

MATTER: When one organism eats another, the matter, or carbon, nitrogen, and other essential elements, are transferred from one to the other. These elements move from the producers, to the consumers, and eventually to the decomposers, cycling the matter through the ecosystem.

Explanation: look up

This carbon tetrahedral tetrahedron is trigonal pyramidal. Then there's this carbon trigonal planner liner and this oxygen.

All forms of life on Earth, from the tiniest bacteria to the mighty sperm whale, always have four main organic polymers that are necessary for life. These are carbohydrates, lipids (or fats), proteins and nucleic acids. The basic building blocks of proteins are called alpha-amino acids. As the name suggests, it contains a carboxylic acid functional group and an amine functional group. The designation alpha is used to indicate that these two functional groups are separated from each other by a single carbon group.

In addition to amines and carboxylic acids, the alpha carbon is attached to a hydrogen and one additional group that can vary in size and length. In cellular systems, proteins are linked together by a complex system of RNA and proteins called ribosomes. Amino acids are therefore arranged in a very specific order according to the genetic information contained in RNA as they are linked together to form specific proteins. This particular sequence of amino acids is known as the basic sequence of a protein. A new amino acid is always added to the tail of the carboxylic acid, not to the amine of the first amino acid in the chain.

Also, because R groups can be very bulky, they usually alternate on either side of the growing protein chain in trans conformation. The cis structure is favored only for a specific amino acid known as proline.

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x = 10, y = 20/6

Given

one number is three times of the other

their arithmetic mean is 10

Required

The numbers

Solution

Suppose the numbers you are looking for are x and y, then :

x = 3y (equation 1)

The arithmetic mean : the average of values

(x+3y)/2=10

x+3y = 20 (equation 2)

Substitute equation 1 into equation 2

3y+3y=20

6y=20

y = 20/6

from equation 1 :

x= 3 x 20/6

x = 60/6

x = 10

Answer:

58.44277 gram

Explanation:

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

A compound is a material formed by chemically bonding two or more chemical elements. The type of bond keeping elements in a compound together may vary: covalent bonds and ionic bonds are two common types. The elements are always present in fixed ratios in any compound.

Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

is a material made up of two or more different substances which are physically combined.

A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. I

A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.

hope this help!

Answer:

Here are the definitions of all of them.

Explanation:

Molecule:

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Compound:

A compound is a material formed by chemically bonding two or more chemical elements. The type of bond keeping elements in a compound together may vary: covalent bonds and ionic bonds are two common types. The elements are always present in fixed ratios in any compound.

Element:

Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

Mixture:

is a material made up of two or more different substances which are physically combined.

Chemical Formula:

A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. I

Pure substance:

A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.

A sample of gas at 2815 torr is cooled from 150.0 C to 100.0 C. Assuming the volume is constant, 2482.2torr is the pressure in atm of the gas at 100.0 C.

The force delivered perpendicularly to an object's surface per unit area across how that force is dispersed is known as pressure (symbol: p / P). The pressure in relation to the surrounding air pressure is known as gauge pressure, also spelt gauge pressure.

Pressure is expressed using a variety of units. Some of these are calculated by dividing a unit of force by a unit of area; for instance, the metric system's unit of pressure, a pascal (Pa), is equal to one newton / square metre (N/m2).

P₁/T₁=P₂/T₂

2815 ×373/423=2482.2torr

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Answer:

aluminium has 13 protons,13 electron,and 14 neutron.

Explanation:

she is right

The number of protons in the nucleus of an aluminum neutral atom is equal to 13.

A neutral atom can be demonstrated as one in which the number of protons is equal to the number of electrons ( negative charge ). The net electric charge of a neutral atom equals zero. Therefore, this kind of atom is referred to as a neutral atom.

For a neutral atom, we usually say that the number of electrons will be equal to the number of protons. All elements organized in the modern periodic table are in a neutral state.

The given atomic number of Al is 13. The number of electrons in the atom is equal to 13 and the valence electron is filled in its electron shell so it is the element of the 3rd period.

The atomic number of Al atom = 13

The number of electrons = number of protons = 13

Therefore, the protons in the neutral atom of Al are equal to 13.

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Answer:

We need more? What else is in the question? This is unanswerable.

Explanation:

Answer:

Why might the expression "1 mole of nitrogen" be confusing? ... WebAssign will check your answer for the correct number of significant ... Calculate the moles of O atoms in 8.18 g of Mg(NO3)2. ... If the molar mass of hemoglobin is 6.8 104 g/mol, how many Fe2+ ions are ... (_) C7H16(l) + 11 O2(g) 7 CO2(g) + 8 H2O(g)

Explanation:

Answer:

to the right (products side)

Explanation:

The equilibrium constant K describes the ratio between the concentration of products and reactants at equilibrium. For a general reaction:

a A + b B → c C + d D

The equilibrium constant expression is:

\(K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }\)

A low value of K indicates that the concentration of products (C and D) is low in relation with the concentration of reactants (A and B).

Conversely, a high value of K indicated that the concentration of products is high compared with the concentration of reactants.

Since K = 6.4 × 10⁹ is a high value, the concentration of products is higher than the concentration of reactants at equilibrium. Thus, the position of the equilibrium is favored to the right.

Answer:

1.59 M

Explanation:

What is the concentration (M) of CH₃OH a solution prepared by dissolving 11.7 g of CH₃OH sufficient water to give exactly 230 mL of solution?

Step 1: Given data

Step 2: Calculate the moles corresponding to 11.7 g of CH₃OH

The molar mass of CH₃OH is 32.04 g/mol.

11.7 g × 1 mol/32.04 g = 0.365 mol

Step 3: Calculate the molarity of the solution

M = moles of solute / liters of solution

M = 0.365 mol / 0.230 L = 1.59 M

Answer:

Explanation:

As a result, the reaction of propane (C H) 3 8 and oxygen should produce carbon dioxide, water, and heat as products, and the balanced chemical equation will be: C H3 8 + 5O2 3CO2 + 4H O2 + heat. Reactants have the next highest potential power level when compared to materials.

Answer:

water and carbon dioxide

Explanation:

Propane undergoes combustion reactions in a similar fashion to other alkanes. In the presence of excess oxygen, propane burns to form water and carbon dioxide.

I hope this helps!

Answer:

A logic bomb and a time bomb are both types of malicious software or code that are designed to cause harm to a computer system or network. Here's a brief explanation of each:

Logic Bomb:

A logic bomb is a piece of code or software that is intentionally inserted into a system to execute a malicious action when specific conditions are met. It remains dormant until triggered by a predefined event or circumstance, such as a specific date, time, or user action. Once triggered, the logic bomb may perform various harmful actions, such as deleting files, corrupting data, or disrupting system functionality. The purpose of a logic bomb is often to cause damage or to gain unauthorized access to a system.

Time Bomb:

A time bomb is similar to a logic bomb, but it is specifically designed to activate or execute its malicious payload at a certain date or time. It is usually programmed to remain undetected until the predetermined time arrives. The time bomb can be set to trigger after a specific time period or on a particular date, at which point it may carry out destructive actions. Time bombs can be used by attackers to target specific events or to coordinate an attack to occur simultaneously across multiple systems.

Both logic bombs and time bombs are considered forms of malicious code or malware and are used with malicious intent to disrupt, damage, or compromise computer systems or networks. They can be extremely harmful, and it is important to have strong security measures, such as antivirus software and regular system updates, to protect against such threats.

Explanation:

Answer:

the answer is none of the above

Answer:

organic chemistry is chemistry focused on structure and composition, extending to recations and properties of compounds.

often centered around compounds with carbon.

alcohols, amines, and aldehydes are some groups that are studied on organic chemistry

SHORT ANSWER:

a) chemistry focused on the structure qnd composition of compounds

b) alcohols, amines, aldehydes

Explanation:

Organic compounds, which are the compounds associated with life processes, are the subject matter of organic chemistry. Among the numerous types of organic compounds, four major categories are found in all living things: carbohydrates, lipids, proteins, and nucleic acids.

When 0.20 of nicotinic acid is dissolved in 350 ml of water, the ph is 3.05. calculate the Ka value Ka=1.41ₓ10⁻⁵ and percent ionization is 14.1%

One of the water-soluble B vitamins is niacin, sometimes referred to as vitamin B3. Nicotinic acid (pyridine-3-carboxylic acid), nicotinamide (niacinamide or pyridine-3-carboxamide), and similar compounds, such as nicotinamide riboside, are collectively referred to as "niacin."

pH = 3.05

pH=-log[H⁺]

H⁺=10⁻³·⁰⁵

H⁺=0.00089125M

Moles of nicotinic acid in number =2.0ₓ10⁻²

Water volume = 350 mL = 0.0350 L

percent ionization=1.41/100

                               14.1%

A potent basic substance is nicotinic acid (based on its pKa). From microbes to people, all living things have nicotinic acid.

Molarity =Moles/Volume in Liters

             =2.0ₓ10⁻²/0.0350

Molarity = 0.057214M

Nicotinic acid dissocates as follows:

HA⇒[H⁺]+[A⁻]

[H⁺]=0.00089125M

[A⁻]=0.057214M

At equilibrium, [HA] = 0.05714 - 0.00089125 = 0.05624875 M

Ka=[H⁺][A⁻]/[HA]

Ka=(ₓ0.00089125M)(0.057214M)/0.05624875 M

Ka=1.41ₓ10⁻⁵

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Answer:

Explanation: Liquid Chromatography  

I'm sorry if i'm wrong

Answer:First we will find the volume of the tank.

Volume of right cylinder = pi * r² * h

⇒  3.14 * 6 ² * 4

⇒ 3.14 * 36 * 4

⇒452 . 16 feet³

Now as  1 cubic foot of water is about 7.5 gallons we will and rate 10 gallons per minute.

So, every minute 10/ 7.5 ≅ 1.34 cubic foot is getting filled.

Time taken = 452.16/ 1.34  ≅ 337.43 minutes

Which means 5.62 hours approximately and when rounding to the nearest tenth 5.6 hours.

Explanation:That is the answer

Answer:

1.62 L

Explanation:

T= 97+273.15= 370.15

R= 0.08206 atm/mol⋅K

V= 45 L

n= 2.4 mol

P= (n⋅R⋅T)/V

= (2.4 x 0.08206 x 370.15)/(45) = 1.61997 = 1.62

The pressure of the gas is 1.62 atm. This can be calculated by using ideal gas law that gives direct relation between P,V and T

This law states that pressure and volume are directly proportional to the temperature of the gas.

What information do we have?

T= 97+273.15= 370.15 K

R= 0.08206 atm/mol⋅K

V= 45 L

n= 2.4 mol

To find:

P=?

Ideal gas law is given by:

PV=n.R.T

P= (n⋅R⋅T)/V

P= (2.4 x 0.08206 x 370.15)/(45)

P= 1.61997

P= 1.62 atm

Thus, the pressure of the gas is 1.62 atm.

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Answer:

10 amu

Explanation:

to find mass number you add the protons and neutrons . so 6 plus 4 is 10.