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dem82 [27]
1 year ago
11

Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions

Chemistry
1 answer:
allsm [11]1 year ago
4 0

Answer:

i don't know this puetion at

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What will be the new volume if 125 mL of He gas at 100 degree Celsius and .979 atm is cooled to 26 degree Celsius and the pressu
ycow [4]
Use Boyle's Law of Pressure: P1 x V1 = P2 x V2. Givens: P1=0.9 atm V1=                4 P2= 0.9 atm Find: V2 Equation: 0.9 atm x 4 x 4 L = 0.20 atm x V2Solve: 36 atmL= 0.20 atm x V2 18 : = V2 Short answer: The new volume is 104 ml. 
6 0
3 years ago
How many grams of aluminum oxide (Al2O3) will be formed from 10.0 grams of aluminum (Al)? 4 AL + 3 02 --> 2 AL203​
d1i1m1o1n [39]

Answer:

Mass = 18.9 g

Explanation:

Given data:

Mass of Al₂O₃ formed = ?

Mass of Al = 10.0 g

Solution:

Chemical equation:

4Al + 3O₂      →       2Al₂O₃

Number of moles of Al:

Number of moles = mass/molar mass

Number of moles = 10.0 g/ 27 g/mol

Number of moles = 0.37 mol

Now we will compare the moles of Al and Al₂O₃.

                      Al          :          Al₂O₃

                       4           :            2

                     0.37        :         2/4×0.37 = 0.185 mol

Mass of Al₂O₃:

Mass = number of moles × molar mass

Mass = 0.185 mol × 101.9 g/mol

Mass = 18.9 g

4 0
2 years ago
Do viruses respond to stimuli
sertanlavr [38]
<span> They </span>do<span> not </span>respond to stimuli<span>, they </span>do<span> not grow, they </span>do<span> not </span>do<span> any of the things we normally associate with life. 
 


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7 0
2 years ago
Read 2 more answers
What are the radicals?Write their types with four examples.​
polet [3.4K]

Answer:

<h3>A<em><u> group of atoms behaving as a unit in a number of compounds.</u></em><em><u> </u></em></h3>

Explanation:

<h2><em><u>Sorry</u></em><em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>giving </u></em><em><u>half</u></em><em><u> </u></em><em><u>a</u></em><em><u>nswer</u></em><em><u> </u></em><em><u> </u></em><em><u>only</u></em><em><u> </u></em><em><u>.</u></em><em><u>I</u></em><em><u> </u></em><em><u>known </u></em><em><u>this</u></em><em><u> </u></em><em><u>much</u></em><em><u> </u></em><em><u>only</u></em><em><u>.</u></em></h2><h2><em><u>I</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>U</u></em><em><u> </u></em><em><u>like</u></em><em><u> </u></em><em><u>my</u></em><em><u> </u></em><em><u>answer </u></em><em><u>and</u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u>my</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>help </u></em><em><u>u</u></em><em><u>.</u></em></h2>
4 0
3 years ago
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C9H20 +<br> 02 - &gt; CO2 +<br> H2O<br><br> what is the balanced equation of this
san4es73 [151]

Hey there!

C₉H₂O + O₂ → CO₂ + H₂O

First let's balance the C.

There's 9 on the left and 1 on the right. So, let's add a coefficient of 9 in front of CO₂.

C₉H₂O + O₂ → 9CO₂ + H₂O

Next let's balance the H.

There's 2 on the left and 2 on the right. This means it's already balanced.

C₉H₂O + O₂ → 9CO₂ + H₂O

Lastly, let's balance the O.

There's 3 on the left and 19 on the right. So, let's add a coefficient of 9 in front of O₂.

C₉H₂O + 9O₂ → 9CO₂ + H₂O

This is our final balanced equation.

Hope this helps!

8 0
2 years ago
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