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nexus9112 [7]
1 year ago
11

Easy question Who is the youngest in ateez

Chemistry
2 answers:
Juliette [100K]1 year ago
7 0

Answer:

Choi JongHo

Explanation:

gregori [183]1 year ago
3 0

Answer: jongho

Explanation:

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Tin metal reacts with hydrogen fluoride to produce tin (ll )fluoride and hydrogen gas according to the balanced equation. Sn(s)+
ladessa [460]

Answer:

                      1.263 moles of HF

Explanation:

                     The balance chemical equation for given single replacement reaction is;

                                    Sn + 2 HF → SnF₂ + H₂

Step 1: <u>Calculate Moles of Tin as;</u>

As we know,

                    Moles  =  Mass / A.Mass    ----- (1)

Where;

           Mass of Tin  =  75.0 g

           A.Mass of Tin  =  118.71 g/mol

Putting values in eq. 1;

                    Moles  =  75.0 g / 118.71 g/mol

                    Moles  =  0.6318 moles of Sn

Step 2: <u>Find out moles of Hydrogen Fluoride as;</u>

According to balance chemical equation,

                     1 mole of Sn reacted with  =  2 moles of HF

So,

              0.6318 moles of Sn will react with  =  X moles of HF

Solving for X,

                     X =  0.6318 mol × 2 mol / 1 mol

                     X  =  1.263 moles of HF

8 0
2 years ago
The _____ forms of the electron carriers nad+/nadh and fadh/fadh2 have high potential energy.
Sergeu [11.5K]
The reduced forms of the electron carries NAD+ / NADH and FADH / FADH2 have high potential energy.

- NAD& FAD used to donate electrons as a reducing agent, they receive electrons from other molecules and then became reduced.

-FAD is called flow in adenine dinucleotide, it is a redox cofactor and it is in many important enzymatic reactions in metabolism.
5 0
3 years ago
Read 2 more answers
PLEASE ANSWER QUICKLY ILL GIVE BRAILYEST!! IM ON THE TEST NOW What is the temperature of the Sun's middle most layer the chromos
Mekhanik [1.2K]
5500 degrees Celsius to 6000 degrees Celsius
3 0
3 years ago
Read 2 more answers
20 ml of a mixture of C2H6 and C3H8 gases in X : Y mole ratio, is burnt completely by which 52 ml CO2 gas is evolved. If 20 ml o
Alja [10]

The volume of CO2 prodiced when 12 mL of CH4 and 8 mL of C4H10 is burnt is 56 mL.

<h3>What is the equation of the reaction?</h3>

The equation of the combustion of C2H6, CH4, C4H10, and C3H8 gases are given below:

2 C2H6 + 7 O2 ---> 4 CO2 + 6 H20

C3H8 + 5 O2 ---> 3 CO2 + 4 H20

CH4 + 2 O2 ----> CO2 + 2 H2O

2 C4H10 + 13 O2 ---> 8 CO2 + 10 H2O

X moles of C2H6 will produce 2X moles of CO2

Y moles of C3H8 will produce 3Y moles of CO2

Thus;

X + Y = 20 mL

X =20 - Y ---(1)

2X + 3Y = 52 mL ---(2)

Solving for X by substituting in (2)

2 (20 - Y) + 3Y = 52

40 - 2Y + 3Y = 52

Y = 12 mL

Then X = 8 mL

Volume of CO2 produced when 12 mL of CH4 and 8 mL of C4H10 is burnt = (12 × 2 + 8 × 4) = 56 mL

Therefore, the volume of CO2 produced is 56 mL.

Learn more about moles of gas and volume at: brainly.com/question/23883946

#SPJ1

4 0
2 years ago
at 25C and 775 torr, Carbon dioxide has a solubility of 0.0347M in water. What is its solubility at 25C and 1270torr?
Maslowich
Your answer is :
P = K * x where P is partial pressure K is Henry's constant and x is solubility 

<span>775 torr = K L·torr/mol * 0.0.0347 mole / liter </span>

<span>K = 775 / 0.0347 = 22334 L·torr/mol </span>

<span>in the second solution we have </span>

<span>1670 = 22334 * x </span>

<span>x = 1670 / 22334 </span>

<span>= 0.075 moles CO2 per liter of water.
</span>
Hope this helps :)
If you need anymore help with questions then feel free to ask me :D

7 0
2 years ago
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