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3 years ago

Is hydrogen the only non-metal positive ion?

Chemistry

1 answer:

rjkz [21]3 years ago

7 0

Answer:

Why hydrogen is the only non-metal elements which loses electron to form positive ions ? ... When hydrogen bonded with most electronegative element then it forms a positive ions but when it bonded with less electronegative element then it forms a negative ion.

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Using the equation, 4Fe + 3O2 Imported Asset 2Fe2O3, if 8 moles of iron and oxygen from the air were available, how many moles o

sergiy2304 [10]

From the balanced chemical equation,
4Fe + 3O₂ --> 2Fe₂O₃
it is evident that for every 4 moles of Fe (iron), 2 moles of iron (III) oxide will be formed. Using the same ratio,
8 moles of iron x (2 moles Fe₂O₃ / 4 moles of Fe)
= 4 moles Fe₂O₃
Therefore, the answer is 4 moles.

3 0

4 years ago

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Is carbon dioxide gas a mixture

attashe74 [19]

Answer:

it is a gas not a mixture

5 0

4 years ago

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If an increase in temperature accompanies a reaction what occurred

natita [175]

Answer: A. Energy was absorbed

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4 years ago

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Converting the following mm Hg (torr) to standard

11Alexandr11 [23.1K]

Explanation:

Given:

20.5 torr

78.6 torr

225 torr

Change into atm

Computation:

We know that;

1 torr = 0.00131579 atm

So,

1. 20.5 torr

= 20.5 x 0.00131579 atm

= 0.02697

= 0.027 atm (Approx)

2. 78.6 torr

= 78.6 x 0.00131579 atm

= 0.103090

= 0.103 atm (Approx)

3. 225 torr

= 225 x 0.00131579 atm

= 0.2960

= 0.296 atm (Approx)

5 0

3 years ago

An object with a mass of 6.9 g raises the level of water in a graduated cylinder from 25.1 mL to 30.4 mL. What is the density of

Nana76 [90]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of object = 6.9 g

volume = final volume of water - initial volume of water

volume = 30.4 - 25.1 = 5.3 mL

It's density is

$density = \frac{6.9}{5.3} \\ = 1.30188679...$

We have the final answer as

Hope this helps you

8 0

3 years ago