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Taya2010 [7]
3 years ago
7

PLS HELP ME FOR BOTH QUESTIONS

Chemistry
1 answer:
Jet001 [13]3 years ago
7 0

Answer:

IF the match is stuck on the side it could chach burning hot.

2) the burn peices looks like its burned and it becomes black since of it.

Explanation:

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Galileo discovered four of Jupiter's moons. They are Io, Europa, Callisto, and _____, which is the largest moon in the solar sys
Ganezh [65]

Answer:

D. Ganymede

I hope this helps!

7 0
4 years ago
Using solubility rules, determine if the following compounds are soluble in water. insoluble soluble A. CuCl2 B. BaSO4
Leviafan [203]

Answer :

(A) CuCl_2 : It is soluble in water.

(B) BaSO_4 : It is insoluble in water.

Explanation :

Solubility : It is defined as the amount of solute dissolved in a solvent at a given temperature.

According to the solubility rules:

All chlorides are soluble except Ag^+,Pb^+\text{ and }Hg^{2+}

All sulfates are soluble except Ba^{2+},Pb^{2+},Ca^{2+}\text{ and }Sr^{2+}

From this we conclude that,

(A) CuCl_2 : It is soluble in water.

(B) BaSO_4 : It is insoluble in water.

8 0
4 years ago
A solution is prepared at that is initially in diethylamine , a weak base with , and in diethylammonium chloride . Calculate the
Llana [10]

Answer:

10.96

Explanation:

<em>A solution is prepared at 25 °C that is initially 0.14 M in diethylamine, a weak base with Kb = 1.3 × 10⁻³, and 0.20 M in diethylammonium chloride. Calculate the pH of the solution. Round your answer to 2 decimal places.</em>

Step 1: Calculate the pOH of the solution

Diethylamine is a weak base and diethylammonium (from diethylammonium chloride) its conjugate acid. Thus, they form a buffer system. We can calculate the pOH of this buffer system using the Henderson-Hasselbach's equation.

pOH = pKb + log [acid]/[base]

pOH = -log 1.3 × 10⁻³ + log 0.20 M/0.14 M

pOH = 3.04

Step 2: Calculate the pH of the solution

We will use the following expression.

pH + pOH = 14

pH = 14 - pOH = 14 -3.04 = 10.96

5 0
3 years ago
As you climb through the mesosphere, the temperature:
aleksklad [387]
The temperature decreases 
(Make sure to mark brainiest!)
7 0
4 years ago
How does fission in most nuclear reactors generate electricity? *
GalinKa [24]

Answer:

Particles from the reaction collide with a turbine,which spins and makes electricity hope this answer helps

4 0
3 years ago
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