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nexus9112 [7]
3 years ago
5

Deduce the charge of Z ,in the compound of ZBr2

Chemistry
1 answer:
lyudmila [28]3 years ago
8 0

Answer:

2+

Explanation:

The charge on Z in the compound ZB₂ is a 2+  

  From the given compound:

   We know that Br is bromine with a charge of -1;

So;

   Using the combining power approach:

Atoms                              Z                                Br

Combining power           2                                1

Exchange of valency      1                                 2

So;

  The charge on Z is  2+

          2

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frosja888 [35]

Answer:

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Explanation:

-24

6 0
3 years ago
explain why it is a common laboratory procedure to heat analytical reagents and store them in a dessicated atmosphere (a sealed
Readme [11.4K]

Explanation:

Most reagent forms are going to absorb water from the air; they're called "hygroscopic".  Water presence can have a drastic impact on the experiment being performed  For fact, it increases the reagent's molecular weight, meaning that anything involving a very specific molarity (the amount of molecules in the final solution) will not function properly.

Heating will help to eliminate water, although some chemicals don't react well to heat, so it shouldn't be used for all.  A dessicated environment is simply a means to  "dry."  That allows the reagent with little water in the air to attach with.

6 0
2 years ago
Bromine has a density of 3.10g/cm3. If you have 50.0 ML of bromine, how many grams do you have?
Zanzabum

Answer:

The answer is

<h2>155 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of bromine = 50 mL

density = 3.10 g/cm³

It's mass is

mass = 50 × 3.10

We have the final answer as

<h3>155 g</h3>

Hope this<u> </u>helps you

5 0
3 years ago
Read 2 more answers
How many moles are 21.67 L of NH4CI?
Gnoma [55]

Answer:

0.967mole

Explanation:

Given parameters:

Volume of NH₄Cl  = 21.67L

Unknown:

Number of moles  = ?

Solution:

If we assume that the volume was taken at standard temperature and pressure,

 Then;

  Number of moles  = \frac{volume }{22.4L}  

 Number of moles  = \frac{21.67}{22.4}   = 0.967mole

8 0
3 years ago
Which factors cause a rising tide? A. The moon's gravity and Earth's rotation B. Density differences due to salinity and tempera
Irina18 [472]
It a because the moons gravity pulls the water and the earths rotation moves the bump/wave
3 0
3 years ago
Read 2 more answers
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