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3 years ago

IM ON A TIMER! What are the main types of star clusters? Check all that apply.

Chemistry

2 answers:

jekas [21]3 years ago

8 0

There are globular and open star clusters, but there are no binary, eclipsing, or wobbling ones.

mojhsa [17]3 years ago

8 0

Answer:

globular

open

Explanation:

A star cluster is a small group of stars found in galaxy. There are two types of star clusters:

Open and globular.

An open cluster contains about 100 stars. These are found in disk of galaxy. These are less dense group of stars containing young one.

A globular cluster is has thousands of stars tightly packed together. These are found in halo of galaxy and contain relatively old stars.

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Solid carbon (C) can burn in oxygen (O2). Select

babunello [35]

Answer:

OCO

Another way of writing CO₂

Explanation:

A reaction equation has reactants on the left and products on the right.

The reactants are carbon and oxygen. The product is carbon dioxide.

C + O₂ → CO₂

You might see the equation both ways.

C + O₂ → OCO

C + O₂ in the products would mean no reaction has occurred. The problem can solid carbon can burn in oxygen, so a reaction will occur. For no reaction, you would put "NR" in the products.

OCO is the structural way of writing CO₂. Both have one carbon atom (C) and two oxygen atoms (O).

C + 2O is not possible. Oxygen, if alone, has to be at least O₂ because it's a diatomic molecule.

3 0

2 years ago

The melting points and boiling points of 4 substances are shown.

Serggg [28]

Answer:

it's

C. with melting point 11° C and boiling point 181° C

Explanation:

i hope you got it

4 0

2 years ago

As a cooking method, braising is valued for its A. ability to retain flavor. B. quickness and convenience. C. ability to create

Setler [38]

Definitely C, ability to create delicate flavors. :)

5 0

3 years ago

What is the name of the compound with the formula B2C14?

agasfer [191]

Answer:

Diboron tetrachloride ---> B2Cl4

6 0

2 years ago

Predict the products and write balanced net ionic equations for the following reactions. (g) SnCl2 is added to KMnO4 solution (a

ch4aika [34]

Answer:

The answer to your question is:

Explanation:

Reaction

SnCl₂ + 2KMnO₄ ⇒ 2 KCl + Sn(MnO₄)₂

1 ---- Sn ---- 1

2 ---- K ----- 2

2 ---- Mn ---- 2

8 ---- O ---- 8

2 ---- Cl ---- 2

6 0

2 years ago