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postnew [5]
3 years ago
7

Beryllium exhibits diagonal relationship with- * (a) Al (b) B (c) Mg (d) Si

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
6 0

Answer:

A)Al

Explanation:

Both metals have a tendency to form covalent bonds with molecules

they both form chlorine bridged structures in vapour phase

both are resistant to action of acid due to the formation of protective film of oxides on their surface

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A pure substance contains only one type of particle.?
Alenkinab [10]

Answer:

element

A pure substance is matter that is uniform throughout and has consistent properties. All matter is made up of very small particles called atoms. Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element.

4 0
3 years ago
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An ore is a rock that contains which of the following? A. a mineral or metal with economic usefulness B. a gemstone only C.a min
Ymorist [56]
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4 years ago
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In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the follow
maw [93]

Answer:

22.73s

Explanation:

The reaction is a second order reaction, we know this by observing the unit of the slope.

rate constant = k = 0.056 M-1s-1

the initial concentration of BrO- [A]o = 0.80 M

time = ?

Final concentration [A]t= one-half of 0.80 M = 0.40M

1 / [A]t = kt + 1 / [A]o

1 / 0.40 = 0.056 * t + 1 / 0.80

t = (2.5 - 1.25) / 0.056

t = 22.73s

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3 years ago
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Measure the mass to the nearest 0.01 g
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