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svet-max [94.6K]
3 years ago
8

What force pulled the solar system together out of a cloud of gas and dust

Chemistry
1 answer:
REY [17]3 years ago
8 0
Gravity
Approximately 4.5 billion years ago, gravity pulled a cloud of dust and gas together to form our solar system.
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which of these equations is balanced? A. 2Nac1+H2so4--->Na2so4+2Hc1 B. 2cao+H20-->CaC0h)2 C. H20+co-->h2c03 D. MN+FE--&
klemol [59]
The answer will be a because it's balance
5 0
3 years ago
For each metal complex give the coordination number for the metal species. m(nh34cl2
tankabanditka [31]
The coordination number is 6. The outer Cl- ion isn't included, so you count 4 x NH3 and 2 x Cl- are within Co's coordination sphere.
8 0
3 years ago
The product of the nuclear reaction in which 40Ar is subjected to neutron capture followed by alpha emission is ________. The pr
Orlov [11]

Answer:

37S

Explanation:

Radioactivity is the spontaneous emission of particles and / or electromagnetic radiation by unstable atomic nuclei leading to their disintegration.

We have two main types of radioactivity: radioactive decay and artificial transmutation.

In radioactive decay ( natural radioactivity ), a naturally occurring radioactive element like Uranium-238 disintegrates or decays into more stable isotopes with the emission of particles and/or radiation.

23892U = 23490Th + 42He

Artificial transmutation is the collision of two particles where one particle captures the other used to bombard it. There is subsequent production of isotopes similar or different from the bombarded particle. Neutrons, alpha particles ( helium nucleus ), electrons, protons can be used to bombard elements.

147N + 42He = 178O + 11P

For the above question which is artificial transmutation, the reaction equation is

4018Ar + 10n = 3716S + 42He

So, the neutron capture by Argon-40 will produce a radioisotope Sulphur-37 with the emission of an alpha particle.

5 0
3 years ago
What is the volume of a sample of liquid mercury that has a mass of 76.2g, given that the density of mercury is 13.6g/mL?
nignag [31]
Hey there!

D  = m / V

13.6 = 76.2 / V

V = 76.2 / 13.6

V = 5.602 mL
8 0
3 years ago
N2 (g) + __ H2 (g) --> _NH3 When the reaction above is completely
Advocard [28]

Answer:

3

Explanation:

left side has 2 N so right side must have a 2 which means 6 H on right side so to get 6 on left you have a coef. of 3 to make 6 H

7 0
2 years ago
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