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3 years ago

99 POINTS Which volcanoes are the tallest Shield, Cinder Cones or Composite Cones?

Chemistry

2 answers:

charle [14.2K]3 years ago

6 0

Shield volcanos are the tallest. The tallest one is Mauna Loa in Hawaii

zhenek [66]3 years ago

3 0

The guy is right at the top

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A runner completes a 5-mile run.how many yards did she run

slega [8]

The runner ran a total of 8800 yards.

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3 years ago

The melting point of the metal potassium is 63.5c, while that of titanium is 1660c. what explanation can be given for this great

kiruha [24]

The melting point of potassium = $63.5^{0}C$

Melting point of titanium = $1660^{0}C$

Titanium has a stronger metallic bonding compared to potassium. Titanium being a transition metal has greater number of valence electrons (4 valence electrons) contributing to the valence electron sea compared to potassium which has only one valence electron. The atomic size of Titanium much lower than that of potassium, so the bonding between Titanium atoms is stronger than that of potassium. Hence, the melting point of Titanium is much higher than that of potassium.

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3 years ago

what are the elements of the following compounds: sodium bromide,zinc sulphide,lead oxide,magnesium nitride,potassium oixide

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Sodium , bromine zinc magnesium sulphur nitrogen potassium oxygen lead

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2 years ago

4.1 moles of sodium carbonate to molecules of sodium carbonate.

docker41 [41]

<h3>Answer:</h3>

2.47 × 10^24 molecules

<h3>Explanation:</h3>

One mole of a compound contains molecules equivalent to the Avogadro's number, 6.022 × 10^23.

That is, 1 mole of a compound = 6.022 × 10^23 molecules

Therefore,

1 mole of Na₂CO₃ = 6.022 × 10^23 molecules

Thus, we can calculate the number of molecules in 4.1 moles of Na₂CO₃

we get,

= 4.1 moles × 6.022 × 10^23 molecules

= 2.47 × 10^24 molecules

Hence, 4.1 moles of Na₂CO₃ contains 2.47 × 10^24 molecules

3 0

3 years ago

What is the atomic mass of neon to the nearest tenth<br><br><br>help me pls

motikmotik

Answer:

20.2

Explanation:

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3 years ago