Help plzzz I’ll give brainliest

Answer:

Find the molar mass of each individual element, multiply that molar mass number by the element's subscript in the formula, and then add together.

Explanation:

Answer:

The bonding and molecular polarity in a molecule of CI2 is best described as palar / polar

Answer: 21.13 L of [tex]H_2O[/tex] will be produced from the reaction of 24.65 L of oxygen

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

[tex]2C_2H_6(g)+7O_2(g)\rightarrow 4CO_2(g)+6H_2O(g)[/tex]  

According to stoichiometry :

7 moles of [tex]O_2[/tex] give = 6 moles of [tex]H_2O[/tex] vapour  

[tex]7\times 22.4L=156.8L[/tex]  of [tex]O_2[/tex] produce = [tex]6\times 22.4L=134.4L[/tex] of [tex]H_2O[/tex] vapour  

Thus 24.65 L of [tex]O_2[/tex] produce = [tex]\frac{134.4}{156.8}\times 24.65=21.13[/tex] L of [tex]H_2O[/tex] vapour  

21.13 L of [tex]H_2O[/tex] will be produced from the reaction of 24.65 L of oxygen

Answer:

21.13

Explanation:

Answer:

Circle Any 3 Red Spheres

Explanation:

All of these atoms are Carbon (C), as diamond is a network solid composed entirely of Carbon.  They are all the same.

Answer:

The combined gas law states that the pressure of a gas is inversely related to the volume and directly related to the temperature. If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase.

Explanation:

Answer:

D. The volume increases.

Explanation:

100%

Answer:

2,4-di Ethyl-2-methylpentane

C10H22

3,4 dimethyl heptane

C9H20

Explanation:

Answer:

I have the lowest electronegativity of the nonreactive elements. My family name is alkali metals. I am classified as a reactive metal. I have one valence electrons.

Explanation:

Electronegativity refers to the ability of the atoms of an element to attract electrons to itself. Based on their nature, non-metals are electronegative elements whereas metal are electropositive as they have a tendency to give up their electrons rather than attract electrons to themselves.

In the periodic table of elements, non-metallic character, and hence, electronegativity increases from left to right across a period, and decreases down a group. The most electropositive element is fluorine. On the other hand, electropositivity decreases across a period from left to right but increases on going down a group. Hence, the most electropositive element is Francium. This also means that Francium is the least electronegative element,

francium belong to the group 1A of the periodic table which are the most reactive metals. The family of group 1A elements are known as alkali metals. They possess only one valence electron which they easily give up to form univalent positive ions or cations. Francium is a radioactive element.

Answer:

The IUPAC name of CH3 – CH2 – CH2 – CH=CH2 is Pent-1-ene.

Answer:

eu nu insteleg ce zite

Explanation:

Answer:

We know that the movement of tectonic plates is a continuous process. Divergent plates cause the ocean floor to expand. Because of slab pull, subduction, and other processes, the landmasses keep drifting. Because of these movements, continents are continually moving apart from each other. It’s possible that one day they will collide to form a giant landmass and become another Pangea.

Explanation:

here^^

Explanation:

KMnO4 + H2S + HCl --> KCl + MnCl2 + H2O + S8

Did Cl change oxidation number?

The oxidation  number of Cl in Reactant side is -1

The oxidation number of Cl in product side is -1

NO

Did Oxygen change oxidation number?

The oxidation number of O in Reactant side is -2

The oxidation number of O in product side is -2

NO

Did H change oxidation number?

The oxidation number of H in Reactant side is 1

The oxidation number of H in product side is 1

NO

Did Mn change oxidation number?

The oxidation number of Mn in Reactant side is +7

The oxidation number of Mn in product side is +2

YES

Did S change oxidation number?

The oxidation number of S in Reactant side is -2

The oxidation number of S in product side is 0

YES

Oxidizing agent (element with decrease in oxidation number) = Mn

Reducing agent (element with Increase in oxidation number) = S

Answer:

0.347

Explanation:

Al is the limiting reagent.

Explanation:

The stoichiometry of the reaction is such that 4 moles of Al are required for every 3 moles of diatomic oxygen. This means that if the ratio of Al to diatomic oxygen is greater than 4/3, then the oxygen is the limiting reagent. If the ratio of Al to diatomic oxygen is less than 4/3, then Al is the limiting reagent.

The problem state that the ratio of Al to diatomic oxygen is

0.32

0.26

=

16

13

=

48

39

<

52

39

=

4

3

The ration of Al to diatomic oxygen is less than 4/3, so Al is the limiting reagent.

We can also see this if we ask the question "How much Aluminum" is required to completely react 0.26 moles of diatomic oxygen??

0.26

moles

O

2

×

4

moles

A

l

3

moles

O

2

≈

0.347

moles

A

l

So it would take 0.347 moles of Al to completely react with all of the oxygen, however there is only 0.32 moles of Aluminum present, so there is not enough Al to react with all of the oxygen, and so we say that the Al is the limiting reagent.

The mass of Aluminum are needed to produce 21.6 grams of Aluminum oxide (Al₂O₃) is

Mass of any element is equal to the product of its number of moles and molar mass.

For the compound, Aluminum oxide (Al₂O₃)

The atomic masses of Aluminum is 23 and oxygen is 16.

Molecular or molar mass = ( 2 × 23 ) + ( 3 × 16 ) units

M = 46 + 48 = 94 units

The mass of Aluminum in 1 mole of aluminum oxide ,46 grams in 94 grams

Mass of Aluminum in the given 21.6 g of Aluminum oxide will be;

94 grams of Aluminum oxide contains 46 grams of Aluminum.

21.6 grams of Aluminum oxide will contain ( 46 / 94 ) × 21.6 = 10.57g of Aluminum.

Therefore, 10.57g of Aluminum are needed to produce 21.6 grams of Aluminum oxide (Al₂O₃)

Learn more about mass.

https://brainly.com/question/14104216

#SPJ2

Answer:

Sexual Reproduction involves two different parties

Explanation:

Asexual is the opposite, so it uses no one else to reproduce

Answer:

Sexual reproduction produces diverse offspring .

Sexual reprodction produces more variations whereas asexual reproduction usually produces very similar organisms

Explanation:

The highest ionization energy of alkaline earth metal is calcium. Therefore, option (A) is correct.

The ionization energy can be described as the minimum energy that an electron has to absorb to come out of the effect of the nucleus of a gaseous atom or ion.

It tells about the reactivity of chemical compounds and determines the strength of chemical bonds. The units of ionization energy are electronvolts or kJ/mol.

Ionization energy measures the difficulty in removing an electron from an atom or ion and the loss of electron occurs in the ground state of the chemical species.

According to the general configuration of alkaline earth metals, they contain two electrons in their valence shell. The atomic size of alkaline earth metals increases as we move down the group. The electronegativity and effective nuclear charge of alkaline earth metals decrease.

The electron can easily be lost from the atom as we move down the group. Therefore, calcium present at the top of the group has the highest ionization energy.

Learn more about  ionization energy, here:

https://brainly.com/question/16243729

#SPJ2

Answer:

i think

D. Landmasses disrupt the spin of a typhoon while bodies of water

strengthen typhoon.

Answer:are there any answer option? cause i know but i have to make sure

Explanation:

Answer:

Molarity = 0.72M

Molality = 0.85M

Explanation:

Molarity and molality are two measures of molar concentration, and they can be calculated as follows:

Molarity = number of moles/volume of solvent

Molality = number of moles/mass (kg) of solvent

Mole = mass/molar mass

Molar mass of stilbene (C14H12) = 12(14) + 1(12)

= 168 + 12

= 180g/mol

mole of stilbene = 13/180

mole = 0.072mol

Volume = 100mL = 0.1L

molarity = 0.072/0.1

Molarity = 0.72M

Molality = number of moles ÷ mass (kg) of solvent

To get mass of solvent, we use;

Density = mass/volume

Mass = density × volume

Mass = 0.85g/mL × 100mL

Mass = 85g

Mass in kg = 85/1000 = 0.085kg

Molality = 0.072/0.085

Molality = 0.847M

Molality = 0.85M

Answer:

it will gain electrons to fill its outer shell

Explanation:

This element is boron which has 5 electrons.

Answer:

d) distilled

Explanation:

A separatory funnel, also known as a separation funnel, separating funnel, or colloquially sep Funnel and fractionating Funnel. , is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities.

Answer:

d) distilled

Explanation:

Correct!!!

Answer:

Explanation:

2NaCl 2Na + Cl2         synthesis reaction

CaCl2 + F2 CaF2 + Cl2          oxidation-reduction

AgNO3 + KCl AgCl + KNO3      precipitation reaction

N2 + H2 2NH3      i dont know

C3H8 + 5O2 3CO2 +4 H2O Balanced Chemical Reactions and the Conservation of Mass

Answer:

The answer is intrusive igneous and extrusive igneous.

Explanation:

I’ve done the question on A P E X

Answer:

Bacterial species are typified by their diversity. There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size.

Explanation:

What Are the Characteristics Common to All Bacteria?

Single-Celled. Perhaps the most straightforward characteristic of bacteria is their existence as single-celled organisms. ...

Absent Organelles. ...

Plasma Membrane. ...

Cell Walls. ...

DNA.

Answer:

0.02L

Explanation:

Using the formula V1/T1 = V2/T2

Given

V1 = 0.5L

T1 = 25 degrees

T2 = 1 degree

V2 =?

Substitute

0.5/25 = V2/1

Cross multiply

25V2 = 0.5

V2 = 0.5/25

V2 = 0.02L

Hence the new volume will be 0.02L

Answer:

Beryllium atom

Explanation:

Answer:

2 chloride ion, Cl¯

Explanation:

The formula for calcium chloride is CaCl₂.

Next, we shall write the balanced dissociation equation for calcium chloride, CaCl₂. This is illustrated below:

CaCl₂ (aq) —> Ca²⁺ + 2Cl¯

From the balanced equation above,

We can see that calcium chloride, CaCl₂ contains 1 calcium ion, Ca²⁺ and 2 chloride ion, Cl¯.

Therefore, we can conclude that for every 1 calcium ion, Ca²⁺, there are 2 chloride ion, Cl¯.

yes the taste of acid is sour

Explanation:

the acid increase the hydrogen concentration, which provides more ions for the tongue. Because the tongue gains ions, it registers the flavor as sour.