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rusak2 [61]
3 years ago
15

Can someone please help me and ill mark you as brainlest

Chemistry
2 answers:
larisa86 [58]3 years ago
6 0
The first one is linear. The second one is trigonal pyramidal.
r-ruslan [8.4K]3 years ago
3 0

Answer:

can you show the question so we can read it

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Compared to the atoms of nonmetals in period 3, the atoms of metals in period 3 have
siniylev [52]
A. Fewer valence electrons

Valence electrons are electrons that are held most loosely in the outermost shell.
4 0
3 years ago
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As a consequence of the discovery of the nucleus by Rutherford, which model of the Atom is thought to be true
ziro4ka [17]

To my best knowledge I believe the answer is electrons are distributed around the nucleus and occupy almost all the volume of the atom.

5 0
4 years ago
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What do the craters on the moon’s surface tell us about its past?
jok3333 [9.3K]

Answer:

The moon's surface has been struck with other objects.

Explanation:

Answer 1 - Craters are not a sign of alien life as there is nothing directly showing the crater's are not natural phenomena.

Answer 2 - Craters are (normally) produced by the impact force of a foreign object that is moving quickly and collides with an object of larger size.

Answer 3 - Volcanos form mountains and magma tubes, not craters.

Answer 4 - The formation of mountains does not relate to craters in any meaningful way.

6 0
2 years ago
The number of valence electrons in sodium is/are<br> a 1<br> b 4<br> C2<br> d 3
4vir4ik [10]

Answer:

4

Explanation:

5 0
3 years ago
A mass of 32.0 g of H2O(g) at 373 K is flowed into 295 g of H2O(l) at 310. K and 1 atm. Calculate the final tem- perature of the
anyanavicka [17]

Answer:

313 K;

Liquid state.

Explanation:

When the systems are put in contact they intend to achieve thermal equilibrium, it means that they will change heat until they both have the same final temperature (T). If the system is isolated, by the energy equilibrium, the total heat change must be 0. Thus, the water vapor (hotter) loses heat to the liquid water.

Qv + Ql = 0

The heat is the heat capacity at constant pressure (Cp) multiplied by the mass and by the change in temperature (final - initial). Looking at a thermodynamics table, the values of Cp at 298K for water vapor and liquid are:

Cpv = 0.480 cal/g.K

Cpw = 1.000 cal/g.K

Cpv*mv*(T - 373) + Cpw*mw*(T - 310) = 0

0.480*32.0*(T-373) = -1.000*295*(T-310)

15.36*(T - 373) = -295*(T-310)

15.36T - 5729.28 = -295T + 91450

310.32T = 97179.28

T = 313 K

Knowing that the fusion temperature of the water is 273 K and the boiling point is at 373 K, the system at 313 K is ar the liquid state.

4 0
4 years ago
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