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Lorico [155]
3 years ago
12

Which factor causes gas and dust to pull together during the first stage of star formation?

Chemistry
2 answers:
Leokris [45]3 years ago
6 0
Gravity pulls gas and dust together. A protostar forms as mass increases.
Paladinen [302]3 years ago
3 0

Answer:

B. Gravity on E2020                

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The radioactive atom 61/27 co emits a beta particle. write an equation showing the decay
pickupchik [31]

Answer:

\rm _{27}^{60}\text{Co} \longrightarrow \,  _{-1}^{0}\text{e} + \, _{28}^{60}\text{Ni}

Explanation:

The unbalanced nuclear equation is

\rm _{27}^{60}\text{Co} \longrightarrow \,  _{-1}^{0}\text{e} + \, ?

Let's write the question mark as a nuclear symbol.

\rm _{27}^{60}\text{Co} \longrightarrow \,  _{-1}^{0}\text{e} + \,  _{Z}^{A}\text{X}

The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.  

Then

60 = 0 + A, so A = 60 - 0 = 60, and

27 = -1 + Z, so Z  = 27 + 1 = 28

Your nuclear equation becomes

\rm _{27}^{60}\text{Co} \longrightarrow \,  _{-1}^{0}\text{e} + \, _{28}^{60}\text{X}

Element 28 is nickel, so the balanced nuclear equation is

\rm _{27}^{60}\text{Co} \longrightarrow \,  _{-1}^{0}\text{e} + \, _{28}^{60}\text{Ni}

7 0
3 years ago
2. Does the aluminum sample (the can) contain more than, (less than or exactly one mole of aluminum? Support answer with calcula
mrs_skeptik [129]

Answer:

than, (less than or exactly one mole

6 0
3 years ago
In what ways can you describe the weather forecast
KiRa [710]
Well you could travel around the world and discover new kind's of weather! am I right?
8 0
3 years ago
Which metallic properties are caused by atoms rolling over each other in metallic bonds?
Pani-rosa [81]

<span>The metallic properties that are caused by atoms rolling over each other in metallic bonds are malleability and ductility.the atoms that are being rolled over are delocalized electrons in the sea of electrons in the metallic bond enable them to roll over when stress is applied.</span>

4 0
3 years ago
Read 2 more answers
EASY BUT I STILL NEED HELP
Jet001 [13]

Answer:

If I’m correct it is 3

Explanation:

4 0
3 years ago
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