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2 years ago

Which of the following IS NOT a galaxy that the Milky Way is currently "eating"?

Chemistry

1 answer:

Levart [38]2 years ago

7 0

I think it’s the andromeda cause scientists have said that Andromeda might be eating Milky Way.

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Write the net ionic equation for this reaction occurring in water: ammonium fluoride and magnesium chloride are mixed to form ma

MAXImum [283]

Correct answer: 3. $Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)$

The given chemical reaction is between ammonium fluoride and magnesium chloride to form magnesium fluoride and ammonium chloride.

The balanced chemical equation representing the reaction will be,

$2NH_{4}F (aq) + MgCl_{2}(aq) -->MgF_{2} (s) + 2NH_{4}Cl (aq)$

The complete ionic equation for the reaction: All the compounds soluble in water (aqueous) will split into ions, $MgF_{2}$ will not split into ions as it is insoluble in water.

$2 NH_{4}^{+}(aq) + 2 F^{-}(aq) + Mg^{2+}(aq) + 2 Cl^{-}(aq) --> MgF_{2}(s) + 2 NH_{4}^{+}(aq) + 2 Cl^{-}(aq)$

The net ionic equation will be:

$Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)$

Here the spectator ions are $NH_{4}^{+} and Cl^{-}$

6 0

3 years ago

How to write the formulas

DanielleElmas [232]

If you have to write the chemical formula of a simple, binary ionic compound given the name of the compound, you follow a set of three steps. Let's go through them using magnesium chloride as an example. Write the symbols for the cation and the anion: Mg and Cl. Determine the charge on the cation and anion.

6 0

3 years ago

What kind of weather would you find on Mercury? A) A very thin atmosphere and temperatures vary from 427 degrees to -180 degrees

trasher [3.6K]

Answer:

A) A very thin atmosphere and temperatures vary from 427 degrees to -180 degrees Celsius (800 to -292 degrees Fahrenheit)

Explanation:

I did this quiz and this was the answer.

7 0

3 years ago

Read 2 more answers

Which statement is true for gases, but not for solids or liquids? A. The particles are in motion. B. The particles rarely touch

andriy [413]

Answer:

B. The particles rarely touch each other.

Explanation:

The particles of gases are far apart, so they rarely touch each other. The particles of liquids can slide past each other, and the particles of solids are locked in place next to each other.

In all three states of matter, the particles

Have a definite volume
Are in constant motion
Have kinetic energy

7 0

3 years ago

A chemist determined by measurements that 0.045 miles of barium participated in a chemical reaction. Calculate the mass of bariu

zmey [24]

Answer: m= 6.2 g Ba

Explanation: Solution:

0.045 moles Ba x 137 g Ba / 1 mole Ba

= 6.2 g Ba

7 0

3 years ago