3 years ago

An ion is formed when an atom___?

Chemistry

1 answer:

KATRIN_1 [288]3 years ago

5 0

Answer:

gain or loses electrons.

Explanation:

Because the atom need to be balanced.

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Thermal decomposition of magnesium nitrate and magnesium hydroxide <br><br>

iragen [17]

Explanation:

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8 0

3 years ago

To draw a Lewis structure for a polyatomic ion, begin by calculating A, the available electrons, and N, the needed electrons. Wh

Mrac [35]

Answer:

N for chlorate ion is one

Explanation:

Because N is the number of electrons needed to form octet structure causing a negative charge of one, since it already has 25valence electrons

4 0

4 years ago

She collected 20 cm³ of oxygen. What volume of hydrogen could she also have collected at the same time?

loris [4]

Answer:

Assuming it was collected from the atmosphere it would be virtually nothing

Explanation:

hydrogen makes up 0.000055% of the atmosphere while oxygen makes up 23 percent. 20/400000 cm^3 of hydrogen

7 0

3 years ago

A tank contains a mixture of helium, neon, and argon gases. If the total pressure in the tank is 490. mmHg and the partial press

OleMash [197]

Answer: The partial pressure of neon is 173 mmHg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_A+p_B+p_C$

Given : $p_{total}$ =total pressure of gases = 490 mm Hg

$p_{He}$ = partial pressure of Helium = 215 mmHg

$p_{Ar}$ = partial pressure of argon = 102 mm Hg

$p_{Ne}$ = partial pressure of neon= ?

$p_{total}=p_{He}+p_{Ar}+p_{Ne}$

$490=215+102+p_{Ne}$

$p_{Ne}=173mmHg$

Thus partial pressure of neon is 173 mmHg

5 0

3 years ago

9.25x10^-8 x6.40x10^3 in scientific equation

Furkat [3]

Answer:

5.92E-4 or 5.92x10^-4

Explanation:

4 0

3 years ago