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3 years ago

Which diagram shows a pair of electrons that have opposite spins? OT 11 11 个个

Chemistry

2 answers:

yanalaym [24]3 years ago

6 1

Answer:

???

Explanation:

Not sure what they mean

Nikolay [14]3 years ago

4 1

Answer:

hi myself from india

you from ??

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Write the Iconic Bond to Metals

Nutka1998 [239]

Answer: The ionic compound formed is magnesium chloride having formula $MgCl_2$

Explanation:

Ionic compound is defined as the compound which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

Magnesium is the 12th element of the periodic table having electronic configuration of $1s^22s^22p^63s^2$

This element will loose 2 electrons to form $Mg^{2+}$ ion

Chlorine is the 17th element of the periodic table having electronic configuration of $1s^22s^22p^63s^23p^5$

This element will gain 1 electron to form $Cl^{-}$ ion

So, for every 1 atom of magnesium, 2 atoms of chlorine are required. Thus, the chemical formula becomes $MgCl_2$

Hence, the ionic compound formed is magnesium chloride having formula $MgCl_2$

6 0

2 years ago

Which is denser air or carbon dioxide

Mrrafil [7]

Carbon dioxide I googled it soo

3 0

3 years ago

g In the absence of allosteric effectors, the enzyme phosphofructokinase displays Michaelis–Menten kinetics (see Fig. 7.15). The

Furkat [3]

Answer:

The value of the Michaelis–Menten constant is 0.0111 mM.

Explanation:

Michaelis–Menten 's equation:

$v_o=V_{max}\times \frac{[S]}{(K_m+[S])}=k_{cat}[E_o]\times \frac{[S]}{(K_m+[S])}$

$V_{max}=k_{cat}[E_o]$

Where:

$v_o$ = rate of formation of products

[S] = Concatenation of substrate

$[K_m]$ = Michaelis constant

$V_{max}$ = Maximum rate achieved

$k_{cat}$ = Catalytic rate of the system

$[E_o]$ = Initial concentration of enzyme

On substituting all the given values

We have :

$\frac{v_o}{V_{max}}=0.90$

[S] = 0.10 mM

$\frac{v_o}{V_{max}}=\frac{[S]}{(K_m+[S])}$

$0.90=\frac{0.10 mM}{K_m+0.10 M}$

$K_m=0.0111 mM$

The value of the Michaelis–Menten constant is 0.0111 mM.

6 0

3 years ago

Solubility (polar vs. Nonpolar)

eduard

Explanation:

It is given that polar solutes can be dissolved in polar solvents and non-polar solutes can be dissolved in non-polar solvent.

Alcohol being polar, does not dissolves ionic salt in it.

$CCl_4$ is a non-polar solvent.

From the given options:

1. NaCl: This is an ionic salt and hence, it will be soluble in water only.

2. $I_2$ : Iodine gas is a non-polar solute and hence, will be dissolved in non-polar solvent which is $CCl_4$

3. Ethanol: As, it is a polar molecule and is not an ionic salt, therefore it can be soluble in both water and alcohol.

4. Benzene: It is a non-polar molecule and hence, it will be dissolved in $CCl_4$

5. $Br_2$ : Bromine gas is a non-polar solute and hence, will be dissolved in $CCl_4$

6. $KNO_3$ : This is an ionic salt and hence, it will be soluble in water only.

7. Toluene: This is a non-polar solute and hence, will be dissolved in $CCl_4$

8. $Ca(OH)_2$ : This is an ionic salt and hence, it will be soluble in water only.

4 0

3 years ago

Read 2 more answers

Problem: Convert 30 cm to mm. Need full process pls help

marta [7]

Answer: 300mm

Explanation:

30cm x (10mm/1cm) x (1mm/1mm) = 300mm

Btw, I'm not sure about the (1mm/1mm).

3 0

3 years ago