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4 years ago

The boiling point of a substance is a chemical property true or false

Chemistry

2 answers:

Rasek [7]4 years ago

8 0

the answer is false:)

pogonyaev4 years ago

4 0

Explanation:

vraiLe point d'ébullition est la température à laquelle une substance passe de la phase liquide à la phase gazeuse

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Do the following ! I'LL MARK THE BRAINLEST!<br> ITS SCIENCE!

ipn [44]

Answer:

it's easier to look it up

Explanation:

5 0

3 years ago

Why are there two chlorine atoms for every magnesium atom in the compound NaCl2?

BlackZzzverrR [31]

Answer : Note : The formula give in the question needs to be corrected , the formula of two chlorine atoms for every magnesium atom in the compound is $MgCl_{2}$ which is Magnesium Chloride.

Explanation : To write the formula of the compound we need to know the charge of the atoms or elements involved in the formula.

Charge of Mg is +2 and charge of Cl is -1 , to write the formula of the compound we always criss cross the charges. And also when we write the formula the total (or net) charge of the compound should be 0. Charge of Mg is +2 so to get the total(net) charge as 0 we need two Cl atoms with each -1 charge.

Mg = +2 , Cl = -1 , Cl = -1

2 Cl = -1 + (-1) = -2

Mg = +2 and 2 Cl = -2

+2 -2 = 0

$MgCl_{2}\rightarrow Mg^{+2} + 2Cl^{-}$

So the formula for Magnesium Chloride is $MgCl_{2}$

8 0

3 years ago

This is the balances equations. C3H8 + 5O2 → 3CO2 + 4H2O How many moles of oxygen are required to produce 37.15 g CO2

AleksandrR [38]

Molar mass O2 = 31.99 g/mol

Molar mass CO2 = 44.01 g/mol

Moles ratio:

<span>C3H8 + 5 O2 = 3 CO2 + 4 H2O
</span>
5 x 44.01 g O2 ---------------- 3 x 44.01 g CO2
( mass of O2) ------------------ 37.15 g CO2

mass of O2 = 37.15 x 5 x 44.01/ 3 x 44.01

mass of O2 = 8174.8575 / 132.03

mass of O2 = 61.916 g

Therefore:

1 mole O2 ----------------- 31.99 g
moles O2 -------------------- 61.916

moles O2 = 61.916 x 1 / 31.99

moles = 61.916 / 31.99 => 1.935 moles of O2

4 0

4 years ago

On a lab exam, you have to find the concentrations of the monoprotic (one proton per molecule) acids HA and HB. You are given 43

gavmur [86]

Answer:

0.1818 M

Explanation:

For the process of titration , the formula we use is -

M₁V₁ = M₂V₂

Where ,

M₁ = initial concentration of the acid

V₁ = initial volume of the acid

M₂ = final concentration of the base

V₂ = final volume of the base

Hence , from the question ,

The given data is ,

M₁ = ?

V₁ = 43.5 mL

M₂ = 0.0906 M

V₂ = 87.3 mL

Now, to determine the unknown quantity , the formula can be applied ,

Hence ,

M₁V₁ = M₂V₂

Putting the respective values ,

? * 43.5 mL = 0.0906 M * 87.3 mL

solving the above equation ,

M₁ = ? = 0.1818 M

7 0

3 years ago

Which of the below equations represents the general ionization equation for a weak acid?

dlinn [17]

Yeah, bro, so it's B, because a weak acid does not dissociate entirely in aqueous solution, bro.

6 0

4 years ago

The boiling point of a substance is a chemical property true or false​

The boiling point of a substance is a chemical property true or false