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mart [117]
3 years ago
14

Plss help meeeeeeee i need help

Chemistry
1 answer:
Anastasy [175]3 years ago
7 0

Answer:

D: dark cloud

E: elliptical galaxy

F: flare star

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MAXImum [283]
B. The graphs
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4 0
2 years ago
How is the weathering of rocks by water different from the weathering of rocks by ice?
ehidna [41]

Answer:

The formation of ice can also break rocks. If water gets into a crack in a rock and then freezes, it expands and pushes the crack further apart. When the ice melts later, water can get further into the crack. When the water freezes, it expands and makes the crack even bigger.

Explanation:

6 0
3 years ago
How many valence electrons does it have?<br><br> pls answer thank you
zysi [14]

Answer:

One.

Explanation:

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5 0
3 years ago
Danielle is designing a system to help race cars slow safely and rapidly at her local racetrack. The racetrack is a straight, 1,
xeze [42]

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The answer is C

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3 0
3 years ago
6kg of coal (carbon) is burned in air. What mass of carbon dioxide will be produced? (Assume that combustion is complete and ign
Flauer [41]

The mass of carbon dioxide that would be produced will be 22 kg

<h3>Combustion of carbon</h3>

The combustion of carbon in air can be represented by the equation:

C + O2 ---> CO2

The mole ratio of C to O2 to CO2 is 1:1:1.

Mole of 6kg of carbon = mass/molar mass

                                      = 6000/12

                                      = 500 moles

Equivalent mole of CO2 produced = 500 moles

Mass of 500 moles CO2 = mole x molar mass

                                          = 500 x 44.01

                                           = 22,005 g or 22 kg approximately

More on combustion reactions can be found here: brainly.com/question/13649083

6 0
3 years ago
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