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2 years ago

14

Which mineral might scratch the mineral fluorite, but would not scratch the mineral amphibole? 1 brucite 2. magnesite 3. carnall

ite 4. olivine

1 answer:

NARA [144]2 years ago

4 0

Answer:

olivine i think

Explanation:

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How do you calculate molarity

sergejj [24]

Answer:

find the number of moles of solute dissolved in solution ,

find the volume of solution in liters,

then divide moles solute by liters solution

Explanation:

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3 years ago

An exothermic reaction is a chemical reaction that produces _____.

lana66690 [7]

I pretty sure the answer is a

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3 years ago

Convert 22 ml in to liters

prisoha [69]

Answer:

0.022

Explanation:

milliter (ml) = 1 cubic centimeter (cc)= 0.001 liters (l) = 0.000001 cubic meters (m3).

1 ml = 0.061024 cubic inches (in3) ; 1 in3 = 16.4 ml.

1 ml = 0.000035 cubic feet (ft3); 1 ft3 = 28,317 ml.

1 ml = 2.64 x 10-4 U.S. gallons (gal); 1 gal = 4.55 x 103 ml.

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3 years ago

For the following species, draw a Lewis structure for one important resonance form. Include all lone pair electrons and assign f

Gemiola [76]

Answer:

The Lewis structures are shown in the figure

Explanation:

The lewis structure will be drawn using following steps

i) we will calculate the total number of valence electrons in the molecule

ii) will assign one bond (two electrons in between two atoms)

iii) then distribute the rest of the valence electrons as lone pair or shared pair based on completion of octet.

The structure of each molecule is given in the figure.

Valence electrons:

$NO_{2}^{+}$

V.E = 5 +(2)6-1=16

$NO_{2}F$

V.E =5 +(2)6+7=24

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3 years ago

What is another common name for the lanthanoids on the periodic table?

RUDIKE [14]

Lanthanide Lanthanoid, also called Lanthanide

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3 years ago