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anastassius [24]
2 years ago
9

A liquid solution can be made from______. Select all that apply.

Chemistry
1 answer:
lord [1]2 years ago
7 0
It’s either the 3rd or 4 th one
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The answer is: variable
sergeinik [125]

Answer:

variable: not consistent or having a fixed pattern; liable to change.

Explanation:

6 0
3 years ago
The enthalpy of combustion of gasoline (C8H18) is 5471 kJ mol-1. How much heat will be produced by burning 1 gallon of gasoline
kvv77 [185]

Answer:

127529 KJ

Explanation:

Since 1gallon = 3.78 L= 3780 ml

The density of C8H18= 0.703 g/mL

Density = mass/volume

Mass= Density × volume

Mass= 0.703 g/mL × 3780 ml

Mass= 2657.34 g

Molar mass of C8H18= 114 g/mol

Number of moles= mass/molar mass

Number of moles= 2657.34/114

Number of moles= 23.31 moles

Since 1 mole evolved=5471 kJ

23.31 moles = 5471 kJ × 23.31 = 127529 KJ

8 0
2 years ago
A student measures the mass of an 8 cm block of brown sugar to be 12.9 g. What is the density of
horrorfan [7]

Answer:

0.0025g/cm³

Explanation:

Given parameters:

Mass of the brown sugar = 12.9g

dimension of the sugar = 8cm

unknown:

density of the sugar = ?

Solution

Density is defined as the mass per unit volume of a substance. The expression is given below:

      Density = \frac{mass}{volume}

We know the mass of the substance but the volume is unknown:

Volume of the brown sugar = l x bx h = 8x8x8 = 512cm³

Density of the brown sugar = \frac{12.9}{512} = 0.0025g/cm³

8 0
3 years ago
If a copper acetate hydrate, Cux(C2H3O2)yzH20 compound is found to contain 31.82% copper, 59.14% acetate, and the remainder is w
Aloiza [94]
The Subscripts are 1, 1, 2 Cu(C2H3O2) 2H2O PLZ mark brainleist
4 0
3 years ago
In the Haber reaction shown below, _______?is the
Delicious77 [7]

Answer: hydrogen

Explanation:

5 0
2 years ago
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