All categories

3 years ago

The hardest mineral is called, while the softest is called __.

Chemistry

2 answers:

alukav5142 [94]3 years ago

4 0

The hardest mineral being a diamond and the softest being talc

dem82 [27]3 years ago

4 0

The hardest is diamond and the softest is talc

You might be interested in

0.456 grams of a monoprotic acid is titrated with 45.88 mL of 0.0500 M NaOH. What is the molecular mass (molar mass) of the acid

aivan3 [116]

Answer:

$Molar\ mass= 198.78\ g/mol$

Explanation:

Considering:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

$Moles =Molarity \times {Volume\ of\ the\ solution}$

Given :

For NaOH :

Molarity = 0.0500 M

Volume = 45.88 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 45.88×10⁻³ L

$Moles_{NaOH} =0.0500 \times {45.88\times 10^{-3}}\ moles=0.002294\ moles$

Moles of NaOH = Moles of monoprotic acid

So, moles of monoprotic acid = 0.002294 moles

Given that:- mass = 0.456 g

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$0.002294\ moles= \frac{0.456\ g}{Molar\ mass}$

$Molar\ mass= 198.78\ g/mol$

3 0

4 years ago

Which answer best explains one of the reasons that oceans are salty?

Tatiana [17]

Answer:

(D) Water from streams and rivers carry salt to the ocean

Explanation:

Hope this helps!

8 0

3 years ago

Grains of sugar have a greater_____ than a solid cube of sugar of the same mass, and therefore will dissolve quicker than water.

Gelneren [198K]

Answer:

A. Surface Area

Explanation:

Hope this helps ☺️

7 0

3 years ago

take a bucket and fill it with water put a lot of different thing in it make separate list of the articles which sinks in the wa

Lera25 [3.4K]

Explanation:

Things that float=paper,plastic bottle,rubber, polythene bag, balloon

Things that sinks =needle,stone,spoon,pen,soap

4 0

3 years ago

An experiment is carried out to determine how different pH values of soil will affect the growth of tomato

Aleks [24]

Answer:

How high the plants grow in the different soils.

Explanation:

The dependent variable is what happens as a result of what the experimenter changes.

The experimenter could measure how high the plants grow when placed in soil with different pH values.

5 0

4 years ago

The hardest mineral is called________, while the softest is called __________.

The hardest mineral is called, while the softest is called __.