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finlep [7]
3 years ago
8

According to the bohr model of the atom which particles are allowed to exist, in any one of a number of a energy level

Chemistry
1 answer:
Licemer1 [7]3 years ago
5 0
<span> the line-emission spectrum of an atom is caused by the energies released when electrons. releases energy of only certain values. </span>
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Due to the fact that ionic compounds have strong intermolecular forces they are __________ at room temperature.
MrMuchimi
The correct answer should be solids
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2 years ago
Calculate the mass of water formed when 4g of methane is burnt in excess oxygen​
wariber [46]

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Mass of water formed: 9g

Explanation:

Hope it helps you!

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Which of the following describes the stage that occurs after condensation in the water cycle?
NISA [10]

Answer:

Precipitation

Explanation:

There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection. Let's look at each of these stages. Evaporation: This is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas).

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2 years ago
Which of the following is always involved in a scientific inquiry?​
Oxana [17]

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2 years ago
Rolls of foil are 302 mm wide and 0.018 mm thick. (The density of foil is 2.7 g/cm3 .)
Kruka [31]

Answer:

The length of foil will be 8107.81 cm or 81.7081 m.

Explanation:

Given data:

Width of roll of foil = 302 mm

Height or thickness = 0.018 mm

Density of foil = 2.7 g/cm³

Mass of foil = 1.19 Kg

Length of foil = ?

Solution:

d = m/ v

v = length (l) × width (w) × height (h)

First of we will convert the Kg into gram and mm into cm.

one Kg = 1000 g

1.19 × 1000 = 1190 g

one cm = 10 mm

302 / 10 = 30.2 cm

0.018 / 10 =  0.0018 cm

Now we will put the values in formula:

d = m/ l× h× w

l = m / d × h× w

l = 1190 g / 2.7 g/cm³× 30.2 cm × 0.0018 cm

l = 1190 g/ 0.146772 g/cm

l = 8107.81 cm or 81.7081 m

3 0
3 years ago
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