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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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8. A tortoise moves a distance of 100 metres in 15 minutes. What is the average speed of

myrzilka [38]

Answer: 0.4 km/h

100 m = 0.1 km
15min./60min. = 0.25 hr

so, divide the total distance (100 m) by the total time (15 min)
0.1 km/0.25 hr = 0.4

8 0

3 years ago

A ball dropped from a height of 50 meters, Determine the speed of the ball after 3 seconds

Alex17521 [72]

16.7 m/s

To determine the speed we use the formula: Distance ÷ Time so, 50 ÷ 3 = 16.66... ( rounded off to 1.d.p is 16.7).

8 0

4 years ago

What will be the answer??

AnnZ [28]

5-a). Acceleration is a vector defined as the rate of change of velocity.
Its magnitude has units of [length/time²]. The SI unit is meter/second².
Its direction is the direction in which velocity is increasing.

5-b). The graph says that the object's speed is not changing.
When we look at any time, from zero to almost 50 minutes, the
object's speed is the same . . . 60 m/s . This will make it easy.

There are 60 seconds in a minute, so 30 minutes = 1,800 seconds.
In every one of those seconds, the object covered 60 meters.
It travelled a total of (60 m/s)·(1,800 s) = 108,000 meters (108 km) .

8 0

4 years ago

An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage

Mars2501 [29]

Answer:

I=2.80 A

Explanation:

We Know that R =R₀(1+∝ ΔT)

R=R₀ (1+3.9*10⁻³ *(61-20))

R=R₀ (1.1599)

I=V/R=V/(R₀ (1.1599)

1.4 = V/(R₀ (1.1599) ∵ equation 1

We have to calculate I when T=-88°

R =R₀(1+∝ ΔT)

R=R₀ (1+3.9*10⁻³ *(-88-20))

R=R₀ (0.5788)

I=V/(R₀ (0.5788) ∵equation 2

Dividing equation 2 by equation 1

$\frac{I}{1.4} =\frac{1.1599}{0.5788}$

I = 2.80 A

4 0

3 years ago

Read 2 more answers

Ted wants to hang a wall clock on the wall by using a string. If the mass of the wall clock is 0. 250 kilograms, what should be

antoniya [11.8K]

Sum of all forces = mass * acceleration

Ft= tension force
Fw= force of gravity (Fw= mass* acceleration of gravity which is 9.8 this only applies to force of gravity)

Ft- Fw = 0 (there is no acceleration)
Ft = Fw
Ft= m*g
Ft= 0.250kg*9.8m/s
Ft= 2.45N

7 0

2 years ago