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2 years ago

Tenisha solved the equation below by graphing a system of equations. help!!!!!

Chemistry

1 answer:

Kruka [31]2 years ago

4 0

Answer:

(1.0, 1.4)

Explanation:

Graph the two equations $\log_3 5x$ and $\log_5 (2x+8)$ . The point of intersection is the solution to the system of equations.

Graph on Desmos:

$\log_3 5x\implies \text{Red},\\\log_5 (2x+8)\implies \text{Blue}$

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Briefly explain why an unbalanced chemical equation cannot fully describe a reaction?

zubka84 [21]

From the conservation of mass, matter is not created nor destroyed. So ponder it this way, for example I put one piece of toast in a toaster, but when it is done I had two pieces, that makes no sense right? Same thing with a chemical reaction but in molecular terms, all things must stay constant. If you put a convinced amount you have to get that quantity back, not less or not more in broad terms.

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2 years ago

Given substances f2, kr, cl2 and hbr rank them with respect to the highest boiling point?

Inessa05 [86]

The Hbr has highest boiling point followed by Kr , $Cl_{2}$ and $F_{2}$ .

The Hbr has highest boiling point due to presence of intermolecular H-bonding that is hydrogen bonding.

The electronegativity of bromine is greater than hydrogen atom. The electronegativity difference hydrogen atom and bromine atom is high. So, due to this a positive dipole is generated at hydrogen atom and partial negative charge, these partial charge is called dipole. In a HBr molecule one H-atom attracted by Br-atom of another atom by force of attraction and this partial force of attraction is called H-bonding.

Other all given molecules are arrange according to its molecular mass because boiling points is directly proportional to the molecular mass of molecule.

learn more about boiling point

brainly.com/question/2153588

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3 0

1 year ago

Starting with the unbalanced equation for the combustion of ethanol, C2H5OH(l)+O2(g)→CO2(g)+?H2O(l) what coefficient should be p

lianna [129]

Answer:

C2H5OH(l) + O2(g) → CO2(g) + ?H2O(l)

The coefficient should be 3

Explanation:

C2H5OH(l) + O2(g) → CO2(g) + ?H2O(l)

The chemical equation is a reaction between ethanol and oxygen . The reaction yield is carbon dioxide and water. Balancing the chemical equation requires one to make the number of atoms on the reactant side be equal to the number of atoms on the product side.

C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)

The hydrogen atom on the left hand side of the equation is 6. Therefore, the number of atom of hydrogen should be 6 on the right hand side. The number of oxygen atom on the left hand side is 7. Therefore, the number of Oxygen atom on the right hand side should 7 . Oxygen atom in carbon dioxide(right hand side) is 4 atoms, therefore, it requires 3 atoms of oxygen to make the oxygen atoms 7.

Using 3 as the coefficient of water in the equation will make hydrogen 6 and oxygen 3 .Adding the 3 oxygen to the already 4 atoms of oxygen in carbon dioxide will make oxygen 7 atoms

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2 years ago

Which kind of diagram shows changes in the three kinds of rocks over time? A. rock cycle B. stratification process C. crystalliz

kogti [31]

A. Rock Cycle

Hope its right!(:

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3 years ago

Read 2 more answers

Write electron configurations for Gallium, Ga (Z=31), and show the total valence electrons

ivann1987 [24]

<u>Answer:</u> The electronic configuration of gallium is written below and number of valence electrons is 3.

<u>Explanation:</u>

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

Valence electrons are defined as the electrons present in the outermost shell of an atom.

We are given:

An element Gallium having atomic number as 31.

Number of electrons = 31

Electronic configuration of Gallium is: $(Z=31):1s^22s^22p^63s^23p^64s^23d^{10}4p^1$

This element has 3 electrons in its outermost shell. So, the number of valence electrons is 3

Hence, the electronic configuration of gallium is written below and number of valence electrons is 3.

3 0

3 years ago