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Contact [7]
3 years ago
11

What's the formula unit for magnesium and sulfur?

Chemistry
2 answers:
lara31 [8.8K]3 years ago
8 0
It would be MgS

Mg2+
S 2+

The electrons cancel out so it would MgS
Tom [10]3 years ago
3 0
Formula unit for Magnesium and sulfur is a inorganic compound with the formula MgS. MgS is formed by the reaction of sulfur or hydrogen sulfide with magnesium. The chemical properties of MgS resemble those of related ionic sulfides such as those of sodium, barium, or calcium. It reacts with oxygen to form the corresponding sulfate, magnesium sulfate.  

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Calculate the [H+] in a solution that has a pH of 10.36
Pavlova-9 [17]

Answer:

[H+] = 4.365x10⁻¹¹

Explanation:

The pH is a measurement widely used in chemistry. Is used in quality control to determine if a product is good for human or pet consumption. The equation to obtain the pH is:

pH = -log [H+]

To solve [H+]:

10^pH = -[H+]

10^-pH = -[H+]

In the problem:

10^-10.36 = -[H+]

<h3>[H+] = 4.365x10⁻¹¹</h3>
5 0
3 years ago
What is the smallest unit of an element that retains the properties of that element?
Temka [501]

Answer:

Atom

Explanation:

The smallest unit which maintains an element's properties is an atom.

3 0
3 years ago
Read 2 more answers
A gas at 928 kpa, 129 C occupies a volume of 569 L. Calculate the volume at 319 kpa and<br> 32 C.
lisabon 2012 [21]

Answer:

1255.4L

Explanation:

Given parameters:

P₁  = 928kpa

T₁  = 129°C

V₁  = 569L

P₂ = 319kpa

T₂  = 32°C

Unknown:

V₂  = ?

Solution:

The combined gas law application to this problem can help us solve it. It is mathematically expressed as;

           \frac{P_{1} V_{1} }{T_{1} }   = \frac{P_{2} V_{2} }{T_{2} }

P, V and T are pressure, volume and temperature

where 1 and 2 are initial and final states.

Now,

 take the units to the appropriate ones;

             kpa to atm,  °C to K

P₂ = 319kpa in atm gives 3.15atm

P₁  = 928kpa gives 9.16atm

T₂  = 32°C gives 273 + 32  = 305K

T₁  = 129°C gives 129 + 273  = 402K

Input the values in the equation and solve for V₂;

        \frac{9.16  x 569}{402}   = \frac{3.15 x V_{2} }{305}

       V₂   = 1255.4L

4 0
3 years ago
Herbie left his house at 3:30 p.m. and arrived at Kit’s house at 5:00 p.m. The two boys live 7 miles apart. What was Herbie’s av
Kisachek [45]

Answer:

Step-by-step explanation:

Alright, lets get started.

Suppose they take t minutes to meet each other.

Distance covered by first friend in t minutes, = 0.2 *t=0.2∗t

Distance covered by second friend in t minutes , =0.15 *t=0.15∗t

Total distance is given as 7, so

0.2 t + 0.15 t = 70.2t+0.15t=7

0.35 t = 70.35t=7

t = 20t=20

means after 20minutes they will meet.

SO. the average speed is 10m: Answer

5 0
3 years ago
Describe the day of June 21 at the North Pole in terms of daylight and darkness <br> ( science )
frosja888 [35]
On June 21, as seen from the North pole ...

-- the sun has been up, and it's been light outside,
for the past three months ... ever since March 21 . 

-- The sun won't set, and it won't be dark outside,
for another three months ... until September 21.

-- Here at the North pole, it stays daylight for six months straight.
Today, on June 21, we're exactly halfway through the period of
continuous daylight.
7 0
3 years ago
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