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3 years ago

A compound that releases hydrogen ions in solution would most likely have which chemical property?

Physics

2 answers:

Inessa05 [86]3 years ago

6 0

Answer: It would react with metals to form hydrogen gas.

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions $(OH^-)$ when dissolved in water and an acid is defined as a substance which donates hydrogen ions $(H^+)$ in water.

$HCl\rightarrow H^++Cl^-$

Acids react with metals to form hydrogen gas.

$2Na+2HCl\rightarrow NaCl+H_2$

Acids react with bases to form salt and water and thus undergo neutralization.

$HCl+NaOH\rightarrow NaCl+H_2O$

mestny [16]3 years ago

3 0

It would react with metals to form hydrogen gas
option C is the correct answer

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shepuryov [24]

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3 years ago

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A skiy diver, with parachute unopened, falls 625 m in 15.0s.

olganol [36]

Answer:

average velocity = 6.25m/sec

Explanation:

given data:

for unopened

height = 625 m

time = 15 sec

for opened

height = 356 m

time = 142 sec

Unopened:

$V1 = \frac{625\ m}{15\ sec} = 41.67m/sec$

Opened:

$V2 = \frac{356\ m}{142\ sec} = 2.51m/sec$

we know that

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3 0

3 years ago

Help m-e-e people -_-!

xxTIMURxx [149]

Answer:

the answer is

Explanation:For equilibrium

Weight = Tension

mg=T

∴T=4×3.1π=12.4πN (as can be inferred from the question)

△l/l

T/A

1000

0.031

/20

12.4π/π(

1000

)

4×0.031

12.4×20×1000×(1000)

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6 0

3 years ago

The nose of an ultralight plane is pointed south, and its airspeed indicator shows 28 m/s . the plane is in a 18 m/s wind blowin

leva [86]

<span>Here I think you have to find the velocity in x and y components where x is east and y is north
So as air speed indicator shows the negative speed in y component and adding it in
air speed while multiplying with the direction component we will get the velocity as velocity is a vector quantity so direction is also required
v=-28 m/s y + 18 m/s (- x/sqrt(2) - y/sqrt(2))
solving
v= -12.7 m/s x-40.7 m/s y
if magnitude of velocity or speed is required then
speed= sqrt(12.7^2 + 40.7^2)
speed= 42.63 m/s
if angle is asked
angle = arctan (40.7/12.7)
angle = 72.67 degrees south of west</span>

6 0

4 years ago