pls help me with this one (ignore what i pick)

Answer:Typically, the identity of a substance can be described by a: chemical name, for example, benzene; number, for example, EC number 200-753-7, and.

Explanation:chemical composition, for example, >99 % benzene and <1 % toluene. The composition is determined by chemical analysis.

Answer:

proton

Explanation:

thats what my bio teacher just said

Answer:

Acid/String Electrolyte

Explanation:

Litmus paper turning red means it is an acidic solution. A pH of more than 7 is Base while pH of less than 7 is an acid. Since the pH is 2, less than 7, it s is an acid. Since it has a high electrical conductivity, it must be a strong Electrolyte.

Answer:

1. conduction

2. Convection

3. Radiation

Answer:

I believe that it would be faster but the reaction would not happen immediately. It would take a long time for the effect to start kicking in but it will definitely speed up the process of CO2 being released into our atmosphere.

Explanation:

If CO₂ is being produced in the solution at a faster rate than H₂CO₃, then the rate of the forward reaction is faster.

Rate of any reaction tells about the duration of the completion of reaction to produce products.

Given chemical reaction is written as:

H₂CO₃ ⇄ CO₂ + H₂O

In the question it is given that CO₂ is produced at the faster rate, and it is the product of the forward reaction. So, we conclude that rate of forward reaction is faster.

Hence, the rate of forward reaction is faster.

To know more about rate of a reaction, visit the below link:

https://brainly.com/question/7694417

Answer:I am not sure how

Explanation: sorry free trial

C,

takes dead things, makes them into other things

Answer:

Increasing number of electrons

Explanation:

London dispersion forces are intermolecular forces that occur due to momentary shifts in the electron cloud of atoms or molecules.

London dispersion forces are most commonly observed as the predominant kind of intermolecular forces in non-polar substances.

Generally, it is observed that the strength of these London dispersion forces tends to increase as the number of electrons in the substance increases.

Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.

Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.

Explanation:

https://www.publish.csiro.au/sr/pdf/SR9910717

This is where I gather some info.  

Answer: If ... Then... Because...

Explanation: if I water this plant twice a day then it will grow 3 feet because the more water it gets the bigger it grows

Answer: 0.86 mol

This is a molarity problem, in which M is defined by:

[tex]\frac{n(moles of solute)}{v(liters of solution)}[/tex]and the units are moles/liter

With this information in mind, we can plug in M and v already so that:

1.6 [tex]\frac{mol}{L}[/tex]= [tex]\frac{xmol}{0.54L}[/tex] of Fe₂O₃

If we multiply 0.54 L from both sides, we will get:

0.864 mol = x mol of Fe₂O₃

Rounding that to sigfigs, we get that the number of moles within this Fe₂O₃ solution is 0.86 mol; therefore, that is the answer.

I hope this helped!

Answer:

a. Precipitate

Explanation:

solids can precipitate out of the solution and be left over after the reaction. reactants are incorrect because they are reacted to cause the reaction. b and d are also irrelevant terms.

Answer:

1.208x10⁻³M and 392.5ppm La(NO3)3

Explanation:

The reaction that occurs is:

La2O3 + 6HNO3 → 2La(NO3)3 + 3H2O

Molarity is defined as the moles of solute (In this case, LaO3) per liter of solution. And ppm, are mg of solute per liter of solution.

To solve this question we must find the moles of La(NO3)3 produced and its mass in milligrams to find molarity and ppm:

Moles La2O3 -Molar mass: 325.81g/mol-

0.1968g * (1mol / 325.81g) = 6.04x10⁻⁴ moles La2O3

Moles La(NO3)3:

6.04x10⁻⁴ moles La2O3 * (2mol La(NO3)3 / 1mol La2O3) = 1.208x10⁻³ moles La(NO3)3

Molarity:

1.208x10⁻³ moles La(NO3)3 / 1L =

Mass La(NO3)3 -Molar mass: 324.92g/mol-

1.208x10⁻³ moles La(NO3)3 * (324.92g / mol) = 0.392.5g La(NO3)3

In mg:

392.5mg La(NO3)3 / 1L =

392.5ppm La(NO3)3

Answer:

D.4 types of molecules is yr ans.

stay safe healthy and happy.

Answer:

I think is c

Explanation:

I hope this helps you

Answer:

Acid solutions and base solutions

Explanation:

Increasing the surface area between solute and solvent, increases the rate of dissolution.

Rate of any process will gives idea about the speed of the completion of that happening process.

Dissolution is a process in which solute particles gets dissolve in the solvent medium. If we increases the surface area of any one medium of the solution like solute or solvent then the rate of dissolution increases, as it increases the space to get attracted to each other.

Hence, option (d) is correct.

To know more about dissolution, visit the below link:

https://brainly.com/question/1533795

Answer:

I think its iron(II) oxide

Explanation:

The substance is black but when it's mixed with water it turns green solution so when mixed with sodium Hydroxide it turns green

Answer:

Explanation:

To find the pH we must first find the pOH

The pOH can be found by using the formula

pOH = - log [ {OH}^{-} ]

We have

[tex]pOH = - log(8.2 \times {10}^{ - 8} ) \\ = 7.086186...[/tex]

pOH = 7.09

Next we use the equation

pH = 14 - pOH

We have

pH = 14 - 7.09

We have the final answer as

Hope this helps you

Answer:

[tex]V_2=5.32L[/tex]

Explanation:

Hello there!

In this case, according to the given pressure, temperature and volume, it is possible for us to calculate the final volume via the combined ideal gas law:

[tex]\frac{P_2V_2}{T_2}=\frac{P_1V_1}{T_1}[/tex]

In such a way, we solve for the final volume, V2, to obtain:

[tex]V_2=\frac{P_1V_1T_2}{T_1P_2}[/tex]

Then, we plug in the given data to obtain:

[tex]V_2=\frac{1.19atm*2.3L*380K}{326K*0.60atm}\\\\V_2=5.32L[/tex]

Regards!

Answer:

reaction to cold pack: change in temperature

Evidence of a chemical reaction etc is change in composition

Explanation: composition is atoms changeing and etc, which is a chemical reacton i think. Change in temperture is alsoa  chemical reaction but cold packs

Answer:

Cold pack: absorbs heat (endothermic reaction)

Hot pack: releases heat ( exothermic reaction)

Explanation:

when a cold pack/hot pack is shaken, water mixes with the chemicals in the outer layer and reacts to release or absorb heat.

Answer:

The intensity of the light bulb increases

Explanation:

The conductivity of a solution depends on the concentration of ions in solution. This implies that, if the concentration of ions in solution is increased, the conductivity of the solution increases accordingly.

If we add more CuSO4(s) to the CuSO4 solution, the concentration of ions in the solution and consequently the conductivity of the solution increases.

Therefore, the intensity of the light bulb increases.

Answer:

Do it your self bro

Explanation:

You lazy bum do it yourself

Answer:

1.7 mol/dm3

Explanation:

working out in the image

Answer:

a soft, spongy material that may be changed into coal

Explanation:

13 g CO₂

Chemistry

Atomic Structure

Stoichiometry

Math

Pre-Algebra

Order of Operations: BPEMDAS

Step 1: Define

Identify variables

[Given] 6.7 L O₂

[Solve] g O₂

Step 2: Identify Conversions

[STP] 22.4 L = 1 mol

[PT] Molar Mass of O: 16.00 g/mol

[PT] Molar Mass of C: 12.01 g/mol

Molar Mass of CO₂: 12.01 + 2(16.00) = 44.01 g/mol

Step 3: Convert

Step 4: Check

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

13.1637 g CO₂ ≈ 13 g CO₂

the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

Explanation:

Answer:

Because: The mixtures contain unwanted substances which may be harmful and may degrade the properties of mixtures. So we, need to separated them and extract useful substances.

Answer:

The composition of the mixture is very important, as a result of nature exists solely by its properties, and also the reactions may be separated.