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Rama09 [41]
3 years ago
15

What evidence have u collected to explain the relationship between the Moon's revolution and lunar phrase?

Chemistry
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

A lunar eclipse can only happen during a full moon.

Hope I helped :)

Explanation:

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A balloon has a maximum capacity of 1700 m3. On a cool morning (temperature = 10°c, some hot-air balloonists start filling their
bulgar [2K]

V1/T1 = V2 / T2

V1 = 3/4(1700) = 1275

T1 = 10 + 273.15 = 283.15

V2 = 1700

T2 = V2T1

T2 = (1700) (283.15) / 1275

T2 = 377.53 K

7 0
3 years ago
Study the ions that contain the element chlorine. What are some similarities between the formulas for these ions?
castortr0y [4]

Answer:

A. They all contain oxygen

B. They all have a charge of 1-

Explanation:

4 0
3 years ago
There is an equal number of protons and __________ in a neutral atom.
tiny-mole [99]

the answer is electrons

5 0
3 years ago
A student noticed that the size of the hot pack becomes bigger when magnesium sulfate reacts with water. She thinks that more at
cestrela7 [59]

Answer:

Disagree with the suggestion based on the hygroscopic nature of anhydrous magnesium sulfate

Explanation:

Magnesium sulfate in the anhydrous form is a drying agent. A drying agent salts of inorganic compounds that has the capability of absorbing water to become hydrated, when placed in the presence of a wet surface or moist air

Anhydrous magnesium sulfate is therefore hygroscopic such that it absorbs water from the atmosphere and becomes hydrated and increases in size as its volume is increased according to the following chemical equation

MgSO₄(s) + 7H₂O(l) → MgSO₄·7H₂O(s)

The molar mass of anhydrous magnesium sulfate = 120.366 g/mol

The molar mass of the heptahydrate = 246.47 g/mol

Therefore, the mass of the magnesium sulfate doubles when it forms the heptahydrate, and the magnesium sulfate grows bigger.

4 0
3 years ago
When cyclopentane undergo free-radical substitution with bromine (Br2 /Heat) the product:
Artemon [7]

Explanation:

b. Bromo cyclopentane + HBr

4 0
3 years ago
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