131.39 g/mol C2HCl3
find the molecular formulas

Answer:

two

Explanation:

The symbol “H” means the hydrogen atom; “2H” means two hydrogen atoms that do not make a molecule: they are just two separate (individual) atoms; “H2” means the hydrogen molecule (two hydrogen atoms that came together, sharing their electrons); “2H2” means two separate hydrogen molecules.

Answer:

B. three

Explanation:

sana nakatulong :,-)

Answer:

C.

Explanation:

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.

Answer:

d

Explanation:

Answer:

0.500 moles

Explanation:

In order to convert grams of any given substance into moles, we need the substance's molar mass:

We can find the molar masses of each element in the periodic table:

Now we can divide the given mass by the molar mass in order to calculate the number of moles:

Answer:

Explanation:

Remark

Interesting que8stion. You have to figure out how many mols are present in each reactant. Since all periodic tables are different, I'm going to use rounded numbers. If it is too close, I will go further.

NaCl

Na = 23

Cl = 35.5

1 mol = 58.5 grams

given = 50.0 grams

Mols for the reaction = 50/58.5 = 0.855

H2SO4

H2       =    2*1        2

S          =   1 * 32   32

O4       =   4*16     64

1 mol  =               98   grams

mols  present = 50/98 = 0.510

MnO2

Mn     = 1 * 55    = 55

O2   =   2*16      = 32

1 mol =                  87 grams

mols available    = 50/87 = 0.5747

Discussion

Na Cl and H2SO4 both require 2 moles for every mol of Cl2 produces.

H2SO4  has 0.51 mols available for a reaction

NaCl has  0.855 moles available for a reaction

MnO2 has 0.575 moles available for a reaction.

Given those numbers 0.510 mols of H2SO4 will only produce 0.255 mols of chlorine and the rest will be reduced in a similar manner. H2SO4 is the limiting reagent (reactant).

In other words only 0.510 moles of NaCl will be used and 0.855 - 0.510 moles will be left over on the reactants side.

only 0.575 moles of MnO2 will be used and 0.065 moles will be left over.

The oddity in the result shows up because the balance numbers in the equation give a ratio of 2 to 1 for H2SO4 and NaCl The 2 belongs to the reactants and the 1 for the chlorine.

Answer:

12 molecules of NaCl

Explanation:

The term "unlimited supply of NaOH" means that NaOH is the reactant in excess hence FeCl3 is the limiting reactant that controls the amount of product formed.

Thus;

From the balanced reaction equation;

1 molecule of FeCl3 yields 3 molecules of NaCl

Hence;

4 molecules of FeCl3  yields 4 * 3/1 = 12 molecules of NaCl

Answer:

shell

Explanation:

it is because the shell contains many electrons

Answer:

12

Explanation:

Because it is pH and pOH, you can use the relationship of 14-pH=pOH, or 14-pOH=pH. Using this you should get the pOH to be 12.

Answer:

The correct answer is - transparent medium.

Explanation:

A transparent substance or medium is the substance that allows light to pass through it. Light moves through these substances as they do not absorb the light and do not reflect too.

The example of such substances is glass, air or water. These substances allow light to pass through them.

Thus, The correct answer is - transparent medium.

Answer:

Venus

Explanation:

Similar in structure and size to Earth, Venus spins slowly in the opposite direction from most planets. Its thick atmosphere traps heat in a runaway greenhouse effect, making it the hottest planet in our solar system with surface temperatures hot enough to melt lead.

Answer:

Venus

Explanation:

Hope helps

Answer:

See Explanation

Explanation:

A substitution reaction means the replacement of one or more hydrogen atoms in an alkane by another atom or group. It does not introduce a double bond into the product. The product retains single bonds between the species present.

For instance;

CH4 + Cl2 -------> CH3Cl +HCl

is a substitution reaction

Dehydrogenation is the process of removing two hydrogen atoms from a saturated compound compound thereby yielding an unsaturated product.

E.g

C2H6 --------->C2H4 + H2

The key difference is that substitution reaction yields a saturated product while dehydrogenation yields an unsaturated product.

Answer: [tex]CF_{4} + 2Br_{2} \rightarrow CBr_{4} + 2F_{2}[/tex] is a single replacement reaction.

Explanation:

A chemical reaction in which one element of a compound is replaced by another element is called single replacement reaction.

For example, [tex]CF_{4} + 2Br_{2} \rightarrow CBr_{4} + 2F_{2}[/tex]

Here, fluorine element in the compound [tex]CF_{4}[/tex] is replaced by the element bromine.

Therefore, it is a single replacement reaction.

Thus, we can conclude that [tex]CF_{4} + 2Br_{2} \rightarrow CBr_{4} + 2F_{2}[/tex] is a single replacement reaction.

Explanation:

Nuclear reactions are independent of the chemical form of the element. ... Some of the mass is converted into energy,according to the equation E = mc2 and the order of energy evolved during a nuclear reaction is much higher than that of a chemical reaction.

The energy given off in a chemical reaction is not in any way comparable to that of a nuclear reaction.

A nuclear reaction is one in which the nucleus of an atom is transformed into the nucleus of one or more daughter nuclei. This differs from a a chemical reaction in which atoms are changed from one form to another.

Also, tremendous energy is given off when nuclear reactions occur. The energy given off in a chemical reaction is not in any way comparable to that of a nuclear reaction.

Learn more about nuclear reaction: https://brainly.com/question/9904853

Answer:

liquid, and of course

Explanation:

Answer:

melting point, 119.8 K, 0.72 atm, supercritical fluid, solid, gas, liquid.

Explanation:

Let's refer to the phase diagram (not to scale) for krypton.

At a pressure of 1 atm, the temperature 115.9 K is called the melting point of Kr, and it is the temperature at which it passes from solid to liquid.

The normal boiling point for Kr is at 119.8 K, which is, at 1 atm, the limit between the liquid and the gas state.

The triple point pressure for Kr is 0.72 atm, as can be seen in point C.

The critical pressure for Kr is 54.3 atm.

At temperatures above 209.4 K and pressures above 54.3 atm, Kr is a supercritical fluid, according to the region it is in the phase diagram.

Kr is a solid at 50.3 atm and 105 K, according to the region it is in the phase diagram.

Kr is a gas at 0.720 atm and 131 K, according to the region it is in the phase diagram.

Kr is a liquid at 1.00 atm and 118 K, according to the region it is in the phase diagram.

Answer:

[tex]T_2= -90.0°C[/tex]

Explanation:

Hello!

In this case, according to the given description of how the temperature changes for aluminum in agreement to the loss of heat of 6120.0 J, we can use the following equation:

[tex]Q=mC\Delta T=mC(T_2-T_1)\\\\[/tex]

Thus, by knowing Q, m, C and the initial temperature, we are able to obtain:

[tex]T_2=T_1+\frac{Q}{mC}\\\\T_2=157.3\°C+\frac{-6120.0J}{27.5g*0.900 J/g\ºC}\\\\T_2= -90.0°C[/tex]

Regards!

Answer:

Oxygen

Explanation:

Answer:

C₇H₁₆ + 32CoF₃ —> C₇F₁₆ + 16HF + 32CoF₂

Explanation:

C₇H₁₆ + CoF₃ —> C₇F₁₆ + HF + CoF₂

The above equation can be balance as illustrated below:

C₇H₁₆ + CoF₃ —> C₇F₁₆ + HF + CoF₂

There are 16 atoms of H on the left side and 1 atom on the right side. It can be balance by writing 16 before HF as shown below:

C₇H₁₆ + CoF₃ —> C₇F₁₆ + 16HF + CoF₂

There are 3 atoms of F on the left side and a total of 34 atoms on the right side. It can be balance by writing 32 before CoF₃ and 32 before CoF₂ as shown below:

C₇H₁₆ + 32CoF₃ —> C₇F₁₆ + 16HF + 32CoF₂

Now, the equation is balanced.

Answer:

The answer is B

Explanation:

The answer is B because representative particles can only be atoms.

Answer:

2,6–dimethylcyclohexanol

Explanation:

To name the compound given in the question above, we must first obtain the following:

1. Determine the functional group of the compound.

2. Locate the longest continuous carbon chain.

3. Identify the substituent group attached to the compound.

4. Locate the position of the substituent group.

5. Combine the above to obtain the name of the compound.

Now, we shall determine the name IUPAC name of the compound. This can be obtained as follow:

1. The compound contains the –OH group. Thus, the compound is an alcohol.

2. The compound is a cyclic compound with six carbon forming the ring. Thus, the parent name of the compound is cyclohexane. Thus, the presence of the –OH group changes the parent name of the compound to cyclohexanol.

3. The substituent group attached to the compound is methyl (–CH₃)

NOTE: There are two –CH₃ groups attached to the compound.

4. The position of the 1st –CH₃ group is at carbon 2, while the 2nd is at carbon 6.

NOTE: Counting is done from the carbon bearing the functional group.

5. Therefore, the name of the compound is:

2,6–dimethylcyclohexanol

Answer:

Each chromosome contains many copies of the same gene

Answer:

Offspring receive a mix of genes from two different parents

Good luck!

Answer:

In the most simplest of words: The number of atoms in a molecule

ex) c6h12o6

There are 6 carbon atoms and oxygen atoms, 12 hydrogen atoms

Another example NH4

there are 1 nitrogen atoms and 4 hydrogen atom

Hope that answers your question

Explanation:

Answer:

a. True

Explanation:

Palmitic acid is the acid found in animals and plants. It is the saturated acid that contains fats. It is extracted from palm oil and from fat sources like butter, cheese, milk and meat. It is added in milk with low fat content to add Vitamin A in it. The fat content of palmitic acid is very high. excessive consumption of palmitic acid leads to heart diseases and life risks.

Answer:

erosion

glacier

living things

weathering

Explanation: