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Veronika [31]
2 years ago
11

which event would be less widely visible from Earth: a partial lunar eclipse or a total lunar eclipse? explain please

Chemistry
1 answer:
adell [148]2 years ago
6 0

Answer:

I had the same question and I put a total lunar eclipse.

Explanation:

A total lunar eclipse would be less widely visible because, in a partial lunar eclipse the moon only has to partly be in the Earth's shadow.

I don't know if this is helpful or not, but this is what I put if you still needed it.

Still stuck? Get 1-on-1 help from an expert tutor now.

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A 0.216 g sample of an aluminium compound X reacts with an excess of water to produce a single hydrocarbon gas. This gas burns c
makkiz [27]
0.216g of aluminium compound X  react with an excess of water water to produce gas. this gas burn completely  in O2  to form H2O and 108cm^3of CO2 only . the volume of CO2 was measured at room temperature and pressure

0.108 / n  =  24 / 1 
n = 0.0045 mole ( CO2 >>0.0045 mole 
0.216 - 0.0045 = 0.2115
so Al =   0.2115 / 27  =>  0.0078 mole 
C = 0.0045 * 1000 => 4.5    and Al  = 0.0078 * 1000 = 7.8 

7 0
3 years ago
What are the flocculation basins?
Mila [183]

Answer:

flocculation is the operation in which the coagulated water must be gently mixed at a propeller speed of 15 to 20 rpm to promote the growth of the floc. ... The flocculation basin often has a number of compartments with decreasing mixing speeds as the water advances through the basin.

Explanation:

8 0
2 years ago
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Displacement Reactions involving Acids Reaction Observations (Before mixing) Both clear Classify Reaction (Select all that apply
Soloha48 [4]

A reaction in which heat is evolved is an exothermic reaction while a reaction in which heat is absorbed is an endothermic reaction.

In the first case; Na2CO3 + H2SO4, we can see that this is an acid - base reaction therefore it is a neutralization reaction. Since the tube was hot after reaction, heat is given off so it is exothermic.

In the second case; NaOH + H2SO4, we can see that this is an acid - base reaction therefore it is a neutralization reaction. We are told that the tube is not hot but we don't know the initial temperature of the tube or if it was colder than it's initial temperature so we can not make any inference regarding whether the reaction is endothermic or exothermic.

Lastly, the reaction, NaCl + HC2H5OH does not occur so we mark "no reaction". We are told that the tube is not hot but we don't know the initial temperature of the tube or if it was colder than it's initial temperature so we can not make any inference regarding whether the reaction is endothermic or exothermic.

Learn more: brainly.com/question/11902331

7 0
2 years ago
Which of the following indicates that a chemical change has happened during cooking?
Vera_Pavlovna [14]
The food darkens because the color is changing in the food.
6 0
3 years ago
Melting involves … *
nydimaria [60]

Answer:

C

Explanation:

A solid becoming liquid, like molten iron

8 0
3 years ago
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