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lesya [120]
4 years ago
9

Which object(s) formed last in our solar system?

Chemistry
2 answers:
galben [10]4 years ago
7 0

C. the inner planets

AnnyKZ [126]4 years ago
5 0

Long year ago In space, gravity attracts dust and gas together which created the young solar system. It pulled low-density cloud together to produce initially the solar nebula. These clouds are made of interstellar gas and dust.  

The sun formed first from these nebula and dust.

Planetesimals is just a process indicates the formation of Earth and the other planets from concentrations of dust and diffused matter in the solar system.

Inner planets are the planets located closure to the sun in comparison to outer planets. These inner planets are mercury, venus, earth and mars. Thus, 4.5 billion year ago Inner planets formed at last.


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If i have 17 moles of gas at a temperature of 67c, and a volume of 88.89 liters what is the pressure of the gas
Shtirlitz [24]
Use the state equation for ideal gases: pV = nRT

Data:

V = 88.89 liter
n = 17 mol
T = 67 + 273.15 = 340.15 K

R = 0.0821 atm * liter / (K*mol)

=> p = nRT / V = 17 mol * 0.0821 (atm*liter / K*mol) * 340.15 K / 88.89 liter

p = 5.34 atm

Answer: p = 5.34 atm

4 0
3 years ago
At a temperature of -33.0 degrees C, a sample of confined gas exerts a pressure of 53.3 kPa. If volume remains constant, at what
Rasek [7]

Answer: 598.9K = 325.9°C

Explanation:

P1= 53.3kPa T1= -33+273=240K

P2=133kPa , T2= ?

Applying P1/T1 = P2/T2

Substitute and Simplify

53.3/240 = 133/T2

T2= 598.9K = 325.9°C

4 0
3 years ago
The general format AB+CD→AD+BC represents a ____________ reaction.
geniusboy [140]

The general format AB+CD→AD+BC represents are replacement reaction.

<u>Explanation:</u>

A replacement reaction transpires when elements rearrange positions in compounds. There are two kinds of replacement reactions: single and double.

A double replacement reaction happens when a pair of ionic compounds transactions. This creates a couple of new ionic compounds. A double replacement reaction can be described by the common equation:

AB + CD → AD + CB

AB and CD are the two reactant compounds, and AD and CB are the two product compounds that emerge from the reaction. Through the reaction, the ions B and D switch positions.

3 0
4 years ago
Science 20 Chapter 2 Quiz
vichka [17]

Answer:

The starting reactant in a single displacement reaction is a pure element such as solid zinc metal as well as an aqueous compound. Aqueous implies that the compound is water-soluble. The reaction will result in products that include a different pure element as well as a new aqueous solution.

3 0
3 years ago
Cell membranes are primarily made of a component that contains fatty acids. This component is most likely a. Carbohydrate. Prote
stepan [7]

Answer:

Lipid

Explanation:

I just took the test and I got it right

6 0
3 years ago
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