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3 years ago

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4?

Chemistry

2 answers:

kvv77 [185]3 years ago

6 0

Answer:

2KOH +H2SO4=K2SO4+2H20

Explanation:

Aleks04 [339]3 years ago

4 0

<span>i think the answer should be 2KOH +H2SO4=K2SO4+2H20</span>

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How many electrons are there in second principal energy<br> level(n=2) of a phosphorus atom?

salantis [7]

Answer:

8 electrons

Explanation:

Phosphorous is the element of group 15 and third period. The atomic number of chlorine is 15 and the symbol of the element is P.

The electronic configuration of the element phosphorus is:-

$1s^22s^22p^63s^23p^3$

Thus, from the electronic configuration shown above,

In n = 2, the total number of electrons are 8 which are present in $2s^22p^6$

6 0

3 years ago

What is the relationship between Celsius scale and Kelvin scale of temperature ? very sort answer

inna [77]

Answer:

Celsius + 273 = Kelvin

Explanation:

5 0

3 years ago

Which statement about chemical reactions is not true?

igomit [66]

Answer:

1: New atoms are formed as products

Explanation:

matter (atoms) cannot be created or destroyed

unless you are God or Cinderella's fairy Godmother or something

7 0

3 years ago

John rode 3150 m at an average speed of 350 m/min.If he had ridden at average of 375 m/min instead. How much sooner would it hav

Svet_ta [14]

Explanation:

Given that:

Distance traveled = 3150m

Average speed = 350m/min

Suggested speed = 375m/min

Unknown:

Time = ?

Solution:

Speed is the rate of change of distance with time.

it is mathematically expressed as;

speed = $\frac{distance }{time}$

Initial time using speed 350m/min can be calculated by making time the subject of the formula;

time taken = $\frac{distance }{speed}$

time taken at speed of speed of 350m/min = $\frac{3150}{350}$ = 9min

to seconds = 9 x 60 = 540 seconds

time taken at speed of 375m/min = $\frac{3150}{375}$ = 8.4min

to seconds = 8.4 x 60 = 504 seconds.

It could have taken 504 seconds sooner saving 36 seconds.

learn more:

Speed brainly.com/question/10177389

#learnwithBrainly

7 0

3 years ago

18.2L of gas at 95°C and 760 torr is placed in a 15L container at 80 degrees * C ; what is the new pressure ?

romanna [79]

Answer:

884.56 torr

Explanation:

Formula: $\frac{P_{1}V_{1} }{T_{1}} = \frac{P_{2}V_{2} }{T_{2}}$

P = Pressure

V = Volume

T = Temperature in kelvin (Celsius + 273.15)

$\frac{(760)(18.2) }{368.15} = \frac{P(15) }{353.15}$

$P = \frac{(760)(18.2)(353.15) }{(368.15)(15)}$

P = 884.56169

4 0

3 years ago