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prohojiy [21]
3 years ago
5

Caculate the mass of oxygen needed to burn 175.0grams of octane

Chemistry
1 answer:
IgorC [24]3 years ago
8 0
A water wave traveling in a straight line on a lake is described by the equation
y(x,t)=(3.75cm)cos(0.450cm?1x+5.40s?1t)
where y is the displacement perpendicular to the undisturbed surface of the lake.
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The 2 in the formula AgS is a<br>1. coeffcient<br>2. subscript<br>3. superscript<br>4. binomial​
ludmilkaskok [199]

Answer:

Subscript, or B

Explanation:

<em>AgS is the equation for the chemic reaction of Silver + Sulfur, since the subscript of 2 goes by the g in the equation, this would equal subscript.</em>

<em />

<em>Remember subscripts are located at the BOTTOM of a coefficient and superscripts are located at the TOP of a coefficient.</em>

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<em>Hope this supported your learning journey through and through! Don't forget to drop me a Brainliest! (No pressure, only if you want to!) (◠△◠✿) Sincerely, Kelsey from Brainly.</em>

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<em>~ #LearnWithBrainly ~</em>

3 0
3 years ago
How many electrons would be exchanged from lithium and fluorine
Vikki [24]
Fluorine - Seven electrons of it's own. 

Lithium would give up one electron, so there for, fluorine is then left with eight.
3 0
3 years ago
What is the difference between the units rem and rad?
LenKa [72]

Answer:

Rem is used to measure biological risk, and rad is used to measure absorbed radiation.

Explanation:

6 0
3 years ago
What is the democritus findings?
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4 0
3 years ago
Complete combustion of 5.90 g of a hydrocarbon produced 18.8 g of CO2 and 6.75 g of H2O.
Inessa05 [86]
First we have to find moles of C:
Molar mass of CO2:
12*1+16*2 = 44g/mol
(18.8 g CO2) / (44.00964 g CO2/mol) x (1 mol C/ 1 mol CO2) =0.427 mol C 
Molar mass of H2O:
2*1+16 = 18g/mol
As there is 2 moles of H in H2O,
So,

<span>(6.75 g H2O) / (18.01532 g H2O/mol) x (2 mol H / 1 mol H2O) = 0.74mol H </span>

<span>Divide both number of moles by the smaller number of moles: </span>
<span>As Smaaler no moles is 0.427:
So,
Dividing both number os moles by 0.427 :
(0.427 mol C) / 0.427 = 1.000 </span>
<span>(0.74 mol H) / 0.427 = 1.733 </span>

<span>To achieve integer coefficients, multiply by 2, then round to the nearest whole numbers to find the empirical formula: 
C = 1 * 2 = 2
H = 1.733 * 2 =3.466
So , the empirical formula is C2H3</span>
4 0
3 years ago
Read 2 more answers
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