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3 years ago

Explain the process of how a star starts as a cloud of dust and gas that then forms into a star.

Chemistry

2 answers:

Makovka662 [10]3 years ago

7 0

Answer:

Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.

Damm [24]3 years ago

7 0

Answer:

Explanation:

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2.0 L of Carbon dioxide is heated from -25.0 °C to Standard Temperature.

RideAnS [48]

The final volume of the gas that was heated from -25.0 °C to standard temperature is 2.2L.

<h3>How to calculate volume?</h3>

The volume of a given gas can be calculated using the Charles law equation as follows:

V1/T1 = V2/T2

Where;

V1 = initial volume
V2 = final volume
T1 = initial temperature
T2 = final temperature

V1 = 2L
V2 = ?
T1 = -25°C + 273 = 248K
T2 = 273K

2/248 = V2/273

273 × 2 = 248V2

546 = 248V2

V2 = 546/248

V2 = 2.2L

Therefore, the final volume of the gas that was heated from -25.0 °C to standard temperature is 2.2L

Learn more about volume at: brainly.com/question/11464844

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2 years ago

Name the compound formed when a copper cation has a 2+ charge combined with a bromine anion that has a 1- charge.

Rashid [163]

Answer: The compound is called copper (II) bromide or cupric bromide

Explanation:

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3 years ago

which of the following will stay constant,no matter is the substance is in a solid,liquid,or gas states

Vlada [557]

I believe it is a gas

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3 years ago

Read 2 more answers

The matter in this series of images is going through a change. Draw a conclusion about the type of change shown. Is it a physica

34kurt

Answer:

This is a chemical change because it has been lit on fire. When it is lit on fire, the fire has been made, heat has been made, and gasses produced from the fire have also been made. Because this introduces new matter to the pictures, it is a chemical reaction.

Explanation:

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3 years ago

What are 4 enzymes responsible for digestion along with their substrate and end product

elena55 [62]

Answer:

4 enzymes responsible for digestion:

1. Salivary amylase ---- substrate: Starch ---- end-product: Maltose

2. Lipase ---- substrate: Lipids (fats and oils) ---- end-product: Fatty acids and glycerol

3. Maltase ---- substrate: Maltose ---- end-product: Glucose

4. Protease ---- substrate: Protein ---- end-product: Amino acids

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3 years ago