the first three process involved in water purification can be summarize as​

Answer:

A

Explanation:

Answer:

A. occur, in the chloroplast.

Explanation:

Photosynthesis occur in chloroplasts, with the help of sunlight. Where mitochondria help in respiration

Answer:

The correct answer is -

if the potential energy of reactants is less than the potential energy then it is an endothermic reaction and if the potential energy of reactants is more than the products it is an exothermic reaction.

Explanation:

The potential energy graph represents the energy change in a reaction as it progresses. In the initial part of the reaction, the energy shows are the energy of reactants that takes part in the reaction, and in the later phase, the energy has represented the energy of products of the reaction.

To find the reaction if it is endothermic or exothermic one can see if the potential energy is increased or decrease with the progress of the reaction. if the reaction is increasing in energy with the progress then it is endothermic and exothermic in less energy.

Answer: E

Explanation:

Answer:

56.8 g

Explanation:

Your first conversion factor is the molar mass of H2O to convert from grams of water to moles. Your second conversion factor is the mole ratio of 2 mol C2H10 for every 10 mol H2O. Your last conversion factor is the molar mass of C2H10 to convert from moles back to grams.

150. g H2O • (1 mol H2O / 18.02 g H2O) • (2 mol C2H10 / 10 mol H2O) • (34.1 g C2H10 / 1 mol C2H10) = 56.8 g C2H10

The mass of water will be produced from 150 grams of iron (III) oxide is equal to 50.7 g.

A chemical equation depicts a chemical reaction in terms of symbols of the substances. A chemical equation consists of reactants participating, products, and their physical states.

The law of conservation of mass should be followed by a balancing of a chemical equation so that the number of atoms of substances is equal on either side of the equation is a balanced chemical equation.

Given the balanced chemical equation of the reaction of iron oxide and hydrogen:

[tex]Fe_2O_3 + 3H_2 \longrightarrow 2Fe + 3H_2O[/tex]

Given, the mass of the iron oxide = 150 g

The number of moles of iron oxide = 159.69 g/mol

The number of moles of iron (III) oxide = 150/159.69 = 0.939 mol

One mole of iron (III) oxide produces water = 3 mol

Then 0.939 mol of iron (III) oxide produces water = 3 ×0.939 = 2.82 mol

The mass of water produced = 2.82 ×18 = 50.7 g

Learn more about the balanced chemical equation, here:

brainly.com/question/28294176

#SPJ2

Answer:

MgBr2

Explanation:

(Mg^2+) + (Br^1-)

For every Mg we need 2 Br to balance out the compound.

Since magnesium has two outer electrons, it can donate one electron each to two bromine atoms having seven outer electrons in order for each of the atoms to have a complete octet.

Since the octet rule states that a stable atom must have eight electrons in its outermost shell, it follows that magnesium could give out two of its outermost electrons to two bromine atoms.

When that happens, each bromine atom which previously had seven electrons now have eight electrons, satisfying the octet rule. The correct formula of the compound is MgBr2.

Learn more: https://brainly.com/question/11527546

Answer:

im not sure go with the first

Explanation:

Answer: The correct option is option B (the concentrations of the reactants and products have reached constant values).

Explanation:

CHEMICAL EQUILIBRIUM is defined as a state which is attained in a chemical system where by forward reaction occurs at the same rate with the backward reaction leading to CONSTANT CONCENTRATIONS of the reactants and the products. Chemical equilibrium is achievable in a closed Chemical system so that none of the reactants or products would escape be they gaseous or otherwise.

Chemical equilibrium occurs in a type of reaction called reversible reactions. Reversible reactions is one that can go in either direction depending on the condition of the system. In other words, reactants form products and under favourable conditions products react together to reform the reactants. For example,

3Fe(s) + 4H2O(l) <-------> Fe3O4(s) + 4H2(g)

As the above reversible reaction proceeds, a time is reached when the rate of forward reaction { which is the formation of Fe3O4(s) + 4H2(g)} is equal to the rate of the backward reaction {which is the formation of 3Fe(s) + 4H2O(l)}. At this point, concentrations of the reactants and products have reached constant values.

When a chemical system is at equilibrium then the concentrations of the reactants and products have reached constant values.

Chemical equilibrium is a state occur in any reversible reaction, where the rate of forward reaction is equal to the rate of backward reaction and it is represent as:

A + B ⇄ C + D, where

A & B are reactants, and C & D are products.

As the rates are equal in equilibrium state, so the concentration of reactant and product also have constant value as there is no change in the rate.

Hence, option (B) is correct i.e. concentrations of the reactants and products have reached constant values.

To know more about chemical equilibrium, visit the below link:

https://brainly.com/question/13414142

1) Using Gas In The Home. In our homes, we end up utilizing the material every day.

2) Use In The Industrial Sector. The industrial sector makes similar use of natural gas liquids as a fuel for process heating and raw material to produce chemicals, fertilizers, and hydrogen.

3) Transportation.

Hope this helps. Btw, I love ur pfp!

Answer:

1) Using Gas In The Home. In our homes, we end up utilizing the material every day. ...

2) Use In The Industrial Sector. The industrial sector makes similar use of natural gas liquids as a fuel for process heating and raw material to produce chemicals, fertilizers, and hydrogen.

3) Transportation.

Answer:

0.525 M

Explanation:

As the problem deals with a dilution process, we can use the following formula:

Where subscript 1 stands for initial concentration and volume, while 2 stands for the final conditions. Meaning that in this case:

We input the data given by the problem:

And solve for C₂:

Answer:

The color black absorbs most colors, while white reflects most colors.

Answer:

Water acts as a solvent of carbon dioxide excreted from tissues, in blood and helps in regulating pH (because it forms carbonic acid that lowers pH when it tends to get higher). Blood pH should be maintained at about 7.4. One major reason is that the structure of protein is dependent ton pH because pH determines its ionization hence also affecting the charges and interaction between side groups of amino acids. A change in pH may, therefore, denature proteins and negatively affect cellular functions.

Explanation:

To get more on how water acts as a universal solvent check out brainly.com/question/7007192

Answer:

a

Explanation:

Answer:

Copper is typically a solid and has a coppery, bronzy color. It is a metal and has a relatively high melting point. It has a strong luster and can conduct electricity.

Answer:

RESHAPE BY A FORCE.

Explanation:

1. It can be reshaped by a force. Physical property can be observed and measured without any changes in molecular composition.

2. A physical property is one that can be change without altering the identity of the substance. These set of properties is not concentration dependent they are use to describe matter. Example are: density, solubility, melting point and color and odor. For this case the second option seems to fit the description it can be reshape by force.

Answer:

The elements in Group 1 (lithium, sodium, potassium, rubidium, cesium, and francium) are called the alkali metals. All of the alkali metals have a single s electron in their outermost principal energy. ... For example, the electron configuration of lithium (Li), the alkali metal of Period 2, is 1s22s1.

Answer:

they have a mono positive charge of +1

Explanation:

this is due to having one electron in their outermost ns orbital

Answer:

d

Explanation:

wave a and b clashing constructively would make c a bigger wave and clashing destructively would make d a smaller wave, which they are.

Answer:

d

Explanation:

Answer:

K, or Potassium

Explanation:

Answer:

There are 23076 peanut M&M's in 53.768 kg of M&M's.

Explanation:

First we convert 53.768 kg into g:

Then we divide the total mass of M&M's by the mass of one peanut M&M, in order to calculate the answer:

So there are 23076 peanut M&M's in 53.768 kg of M&M's.

Answer:

•⊙¤□

♡⊙♡}□☆●☆|}£♤◇♤♡♡■♡

♡♤♡♤♡♤♡♤♡♤♤□¿♡■○€€□●£》○£6£\5~£6|~

Answer:

Democritus was an Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe. Democritus was born in Abdera, Thrace, around 460 BC, although there are disagreements about the exact

Explanation:

Answer: Temperature is an objective measurement of how hot or cold an object is. It can be measured with a thermometer or a calorimeter. It is a means of determining the internal energy contained within a given system.

Explanation:

Answer:

Temperature is a physical quantity that expresses hot and cold

Explanation:

Temperature is a physical quantity that expresses hot and cold. This is how the air feels and how hot/cold something is. The less tight the atoms are, the hotter something is. The more tight the atoms are, the cooler something is.

Answer:

Power plants are not located in cities. Power has to travel a long distance over power lines to reach cities.

Explanation:

Answer:

[tex]H_{rxn}=-34.36\frac{kJ}{mol}[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible to realize that the heat released by the reaction is used up to heat up the mixture, which means we can write:

[tex]-Q_{rxn}=Q_{sol}[/tex]

Whereas the Q of solution is given by the total mass (3.644+42.054), the specific heat of the solution and the change in temperature; thus, we obtain:

[tex]-Q_{rxn}=(3.644g+42.054g)*4.18\frac{J}{g\°C}*(36.2\°C-27.8\°C)\\\\ Q_{rxn}=-1604.55J[/tex]

Next, by computing the moles of the solute, we can proceed to compute the kJ/mol for the enthalpy of reaction (dissolution):

[tex]n=\frac{3.644g}{78.01g/mol}=0.0467mol\\\\H_{rxn}=\frac{Q_{rxn}}{n}\\\\ H_{rxn}=\frac{-1604.55J}{0.0467mol}*\frac{1kJ}{1000J}\\\\ H_{rxn}=-34.36\frac{kJ}{mol}[/tex]

Best regards!

Answer:

n=V/Vm

n=1/22.4

n=0.044 moles He

m=n×M

m=0.044×4

m=0.178 g False