In what way is psychology connected to the natural sciences and different than other social sciences?

Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?

Anna71 [15]

Explanation:

The chemical formula magnesium sulfide written as MgS and NOT $Mg_{2}S_{2}$ because charge on magnesium ion is +2 and charge on sulfide ion is -2.

Therefore, these charges will cancel out each other as we write the formula in simplest crisscross method.

Also, the numbers in a chemical formula display the total number of atoms attached with each other or central atom.

For example, in $CaCl_{2}$ there are two chlorine atoms attached to one calcium atom.

Therefore, $MgS$ denotes one sulfur atom is attached to magnesium atom. Hence, we do not write the formula of magnesium sulfide as $Mg_{2}S_{2}$ because this shows two magnesium atoms are attached to two sulfur atoms which is not true.

8 0

3 years ago

Read 2 more answers

Which of these is correct?

Viktor [21]

Answer:

1.89 nol Cu(NO3)2

Explanation:

if you calculate it it will be 1.89

5 0

3 years ago

Concentrated hydrochloric acid, HCl, comes with an approximate molar concentration of 12.1 M. If you are instructed to prepare 3

Semmy [17]

Answer:

28.20 mL of the stock solution.

Explanation:

Data obtained from the question include the following:

Molarity of stock solution (M1) = 12.1 M

Volume of diluted solution (V2) = 350.0 mL

Molarity of diluted solution (M2) = 0.975 M

Volume of stock solution needed (V1) =..?

The volume of stock solution needed can be obtained by using the dilution formula as shown below:

M1V1 = M2V2

12.1 x V1 = 0.975 x 350

Divide both side by 12.1

V1 = (0.975 x 350)/12.1

V1 = 28.20 mL.

Therefore, 28.20 mL of the stock solution will be needed to prepare 350.0 mL of 0.975 M HCl solution.

6 0

3 years ago

A 4.7g sample of ethanol is burned in a calorimeter containing 95.8 mL of water. If the initial temperature of the water is 29.1

Anna11 [10]

Answer:

Anywhere you go, I'll go

Shadows in the camera light

And you don't wanna take it slow, so don't

You know you're my favorite, right?

Hit you with some truth

You're like a dream

I wanna believe

Hit you with some truth

When we're together

I can't even lie

You and me got chemistry

Got, got chemistry

Got chemistry

Feel it when you're close to me

And out of reach

And in between

We got la la la, lots of good vibrations

We got la la la, we got la la la

You and me got chemistry

Got, got chemistry

Got chemistry

Any time or place, no shame

You got my attention now

Can anybody ride my wave the same

You know what I'm talkin' about

Hit you with some truth

You're like a dream

I wanna believe

Hit you with some truth

When we're together

I can't even lie

You and me got chemistry

Got, got chemistry

Got chemistry

Feel it when you're close to me

And out of reach

And in between

We got la la la, lots of good vibrations

We got la la la, we got la la la

You and me got chemistry

Got, got chemistry

Got chemistry

You and me got, you and me got

You and me got chemistry, got, got chemistry,

Got chemistry

Feel it when you're close to me

And out of reach

And in between

Ohh we got chemistry

Feel it when you're close to me

And out of reach

And in between

Ohh, we got la, la, la, we got lots of good vibrations

We got la, la, la, we got la, la, la

You and me got chemistry, got, got chemistry,

Got chemistry

Oh, no, oh, yeah

Oh, no, no, no

Oh, yes, we do

Yeah

'Cause you and me got

8 0

3 years ago

A sample of the alloy “electrum” is 62% silver and 38% gold by mass; mass of part/

Tanzania [10]

Answer:

c

Explanation:

edge 2022

5 0

3 years ago