What is the molarity of a solution that contains 25 g of hcl in 150 ml of solution? (the molar mass of hcl is 36.46 g/mol.) what should you find first?

Answer:

Ionic bonds are when electrons are gained/lost. Hence the valence charges.

-22°C + 273.15 = 251.15K

206°C + 273.15 = 479.15K

50°C + 273.15 = 323.15K

8°C + 273.15 = 281.15K

1:Red cabbage contains a water-soluble pigment called anthocyanin that changes color when it is mixed with an acid or a base.

2: Basic

The best radioisotope to use in powering planet and space exploration is plutonium-239 since it has the longest half-life of 21400 years.

The half-life ofa radioactive element is the time it takes for half the amount of atoms in the element to spontaneously decay.

The half-life of radioactive elements vary.

The half life of the given radioactive elements are as follows:

Therefore, the best radioisotope to use in powering planet and space exploration is plutonium-239 since it has the longest half-life of 21400 years.

Learn more about Half-Life at: https://brainly.com/question/26689704

#SPJ4

Answer:

D. ) Plutonium-239

The earth's first oceans would have obtained freshwater as a result of the condensation of water vapor in the atmosphere back then.

The freshwater of oceans was hypothesized to have been formed by the condensation of water vapor present in the early atmosphere of the earth.

The water vapor was thought to have emanated from volcanic activities. The condensation was in the form of rain and the resulting puddles merged together to form the oceans.

More on how the oceans were formed can be found here: https://brainly.com/question/14073797

#SPJ1

Explanation:

To give the glass its final shape and size, it is blown into with a blowpipe, creating a sort of bubble of glass. To carry out this process, the blowpipe holding the glass must be placed on a steel stand. Then, the glass artist has to blow into the blowpipe while rotating it at the same

Answer:

D. increased human industrial activities

Dust clouds that moved to the east coast of the united states were composed mostly of silt and clay particles due to constant ploughing during drought.

This is defined as dry period in the climate due to insufficient rainfall in the area at a given time.

The drought led to the soil being constantly ploughed thereby loosening and changing the soil type which is susceptible to wind erosion.

Read more about Drought here https://brainly.com/question/12686086

#SPJ4

Answer: Tree and Grass are the two correct answers here

Explanation:  Producers are photosynthesizing organisms. They are any kind of green plant that make their food by taking sunlight and using the energy to make sugar.

Answer:

Tree, grass

Explanation:

Producers make their own food. Trees and grass can make their own food using sunlight (photosynthesis). Monkey is consumer (eats other things like bananas- made by plants - for survival). Mold (like fungus) eat dead stuff and thus are decomposers (not producers).

Answer:

repulsion

Explanation:

HCl(acid)+C₄H₈ (butene)⇒ addition reaction

name of the product: 2-cloro butane

The boiling point of hydrocarbons generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

Hydrocarbons are organic compounds which here composed of hydrogen and carbon alone.

Hydrocarbons are grouped into families or homologous series based on a reactive group known as the gincyiial group

The homologous series include

The boiling point generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

Learn more about hydrocarbons at: https://brainly.com/question/3551546

#SPJ1

Pauli's exclusion principle states that no two subshells of same element have same 4 quantum numbers.

Take example of Berrilim orbital

Electronic configuration is given by 1s²2s²

But the orbital is

[tex]\\ \rm\Rrightarrow \huge{\boxed{\uparrow\downarrow}}\:\:\huge{\boxed{\uparrow\downarrow\mid\:\:\:\:\mid\:\:\:}}[/tex]

Answer:

P2=672.1 torr

Explanation:

use the formula P1V1=P2V2, plug in the numbers so your equation should look like this (763.9)x(98.8)=P2(112.3) answer should be P2=672.1 torr

The resultant pressure of the sample of gas is 510.9 torr.

Relation between the pressure and volume will be represented by the ideal gas equation PV = nRT, and for the given question required equation is:

P₁V₁ = P₂V₂, where

P₁ & V₁ are the pressure and volume of initial sample.

P₂ & V₂ are the pressure and volume of final sample.

On putting values from the question to the equation, we get

P₂ = (768.6)(93.2) / (140.2) = 510.9 torr

Hence resultant pressure is 510.9 torr.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/15046679

#SPJ1

Network solids are chemical compounds that are bound together by a covalent bond. Thus, option D is accurate.

Covalent bonds are the type of chemical bonds that mutually shares electrons between the atoms of the molecules of the compound.

A covalent crystal of network solids is held together by the covalent bond that can be seen in the structures of diamonds, graphite, silicon dioxide, etc.

Therefore, the network solids are option D. held by the covalent bonds.

Learn more about network solids here:

https://brainly.com/question/14185133

#SPJ1

Glutamic amino acid is the non-essential amino acid and an excitatory neurotransmitter. When Glu is found in the core then the pKa of the side chain group increases.

pKa is the acid strength or the estimate that shows whether the solution is weak or strong acid. pKa less than zero is a strong acid and portrays the bonding of the proton by the acids.

In the Glu amino acid, the value of the pKa of the side chain functional groups increases as the amino acid is found in the interior of the water-soluble folded protein structure.

Therefore, the pKa of the side-chain increases.

Learn more about amino acids here:

https://brainly.com/question/5303148

#SPJ1

Answer:

Hess’s Law describes how the __Heat__ energy of a reaction consists of the _Enthalpy__ of the energy changes of the individual step reactions

Explanation:

Hess law is a legendary law which is given by

[tex]\\ \rm\Rrightarrow ∆H_{net}=\sum \delta H_r[/tex]

Functional groups are the specific groups that provide characteristic properties. The compounds are butanoic acid and methyl propanoate.

Functional groups are the active side atoms and molecules that confer the physical and chemical properties of the compound. In the first compound, the functional group is the carboxylic acid (COOH) and four carbon atoms hence, the compound is butanoic acid.

In the second compound, the functional group is an ester (RCOOR) and contains a methyl group and other three carbon atoms making the compound, methyl propanoate.

Therefore, the compounds are butanoic acid and methyl propanoate.

Learn more about functional groups here:

https://brainly.com/question/17033023

#SPJ1

Answer:

c: fermenting of cheese

Answer:

c

Explanation:

Answer:

A saturated solution may not be a concentrated solution IF the solute is only sparingly or slightly soluble in the solution.

Answer:

abt 2 moles

Explanation:

1 mole of carbon atoms per mole of carbon dioxide = 6.02 x 1023 carbon atoms. 2 mole of oxygen atoms per mole of oxygen atoms = 2 x 6.02 x 1023 oxygen atoms.

Answer:

Below•

Explanation:

Fossil Fuel: It's a natural gas based on natural materials such as coal.

Biomass: It's the total weight of substance.

[tex] \qquad \qquad...[/tex]

The table should be included, but that's okay

hcl naoh: salt neutral (both strong)

hcl nh4oh: salt acidic(strong acid+weak base)

ch3cooh koh: salt basic(weak acid+strong base)

5 mols of O_2 need 4 mol NH_3

Now

Moles of Ammonia

Moles of NO=0.3mol

Mass of NO

So

Moles of Oxygen

Remaining moles

Mass

Yield

Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.

The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.

The reaction for HCO₃ is given as:

HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O

The value of Ka for the given reaction will be:

Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]

Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.

Learn more about the weak ionization constant here:

https://brainly.com/question/27200344

#SPJ1