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3 years ago

_____ replacement involves one element replacing another element in a compound.

Physics

1 answer:

Scorpion4ik [409]3 years ago

3 0

Answer:

Single replacement

Explanation:

A single replacement reaction is a reaction in which the less reactive elements are replaced by the more reactive element in a compound. This is so because the more reactive element are higher in the electrochemical series element than the less reactive elements

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Help!! If an atom has 7 protons and 8 neutrons, and is not in an excited state, how many electrons would Bohr say the atom has?

quester [9]

The answer I believe is 6

8 0

3 years ago

Read 2 more answers

1 Find the acceleration of an object if there is a force of 20 newtons in one direction and 10 newtons in the opposite direction

Zielflug [23.3K]

Answer:

5m/s/s

Explanation:

10N bc you subtract 10N from 20N and you get 10

a=f/m

F=10N

m=2kg

10/2=5

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3 years ago

How much charge is enclosed by a Gaussian surface through which the electric flux is 6.78 x 10^9 Nm^2\C.

VMariaS [17]

Answer:

q=0.06 C

Explanation:

Given that

Net flux $\phi = 6.78\times 10^{9}\ Nm^2/C$

Lets take charge inside Gaussian surface = q C

We know that

$\phi=\dfrac{q}{\varepsilon _o}$

$\varepsilon _o=8.854\times 10^{-12} farads\ per\ meter$

Now by putting the values in the above equation we get

$6.78\times 10^{9}=\dfrac{q}{8.854\times 10^{-12}}$

$q=6.78\times 10^{9}\times 8.854\times 10^{-12}\ C$

q=0.06 C

Therefore the net charge inside the surface will be 0.06 C.

q=0.06 C

6 0

3 years ago

True or false

Alex Ar [27]

Your answer is true to this question i hope this is correct

8 0

3 years ago

z jaka maksymalna predkoscia porusza sie przez krotka chwile rowerzysta jezeli dysponuje moca maksymalna 420w i przy predkosci z

qwelly [4]

Answer:

12 m/s

Explanation:

English Translation

At what maximum speed is the cyclist traveling for a short time if he has a maximum power of 420W and at this speed he must overcome the resistance 35N.

The Power, P, expended by a moving body with velocity, v, moving against a resistive force of F is given as

P = Fv

P = 420 W

F = 35 N

v = ?

420 = 35v

v = (420/35) = 12 m/s

In Polish/Po polsku

Moc P, wydana przez poruszające się ciało z prędkością v, poruszająca się przeciw sile oporu F, jest podana jako

P = Fv

P = 420 W

F = 35 N

v = ?

420 = 35v

v = (420/35) = 12 m/s

Hope this Helps!!!

Mam nadzieję że to pomoże!!!

6 0

3 years ago