All categories

3 years ago

A cup of coffee is considered a...

2 answers:

5 0

When you brew a coffee you're creating a Solution.
<span>
</span>Tiny particles from coffee grounds, or solutes, are dissolved in water, the solvent.

r-ruslan [8.4K]3 years ago

3 0

Answer is: D) Solution.

Solution is homogeneous mixture (the same proporties of its components throughout any given sample) composed of two or more substances.

In aqueous solution, solvent is water and solute (in this example coffee beans) is a substance dissolved in water.

Water and coffee beans can be separated with distillation (process of heating and cooling).

You might be interested in

Mrs.Jacobs dropped an object from 10 meters she knows it did 50 joules of work how much did it weigh?

Alenkasestr [34]

It is 30 hope it help's.

5 0

3 years ago

Which statement is true regarding a hydrogen bond? It is weaker than dipole interaction forces. It is weaker than London dispers

Rom4ik [11]

I believe the answer is C: "<span>It occurs when a hydrogen atom bonds with electropositive atoms."</span>

4 0

3 years ago

Read 2 more answers

Baking soda is mixed with water, and no bubbles are produced. When baking soda is mixed with vinegar, it bubbles and foams rapid

Sloan [31]

The chemica property is Reactivity

7 0

3 years ago

Read 2 more answers

Choose the compound below that should have the highest melting point according to the ionic bonding model. Choose the compound b

Bingel [31]

Answer:

AlN has highest melting point among given.

Explanation:

As per ionic model, ionic compounds are held together by electrostatic force. The ionic compound having strong electrostatic force will have high melting point.

Electrostatic force is proportional to charge and size of constituent ions.

$F=k \frac{q_+\times q_-}{r^2}$

In case of MgO

Charge on Mg = +2

Charge on O = -2

$F=-k \frac{(+2)\times (--2)}{r^2}=\frac{4k}{r^2}$

In case of LiF

Charge on Li = +1

Charge on F = -1

$F=-k \frac{(+1)\times (-1)}{r^2}=\frac{1k}{r^2}$

In case of AlN

Charge on Al = +3

Charge on N = -3

$F=-k \frac{(+3)\times (-3)}{r^2}=\frac{9k}{r^2}$

In case of RbF

Charge on Rb = +1

Charge on F = -1

$F=-k \frac{(+1)\times (-1)}{r^2}=\frac{1k}{r^2}$

In case of CaS

Charge on Ca = +2

Charge on S = -2

$F=-k \frac{(+2)\times (-2)}{r^2}=\frac{4k}{r^2}$

As magnitude of electrostatic force is highest in AlN, therefor, it has highest melting point.

4 0

3 years ago

The height of the sun in the sky at noontime is called

ivolga24 [154]

It’s called the solar noon and basically it’s the term for when the sun is at its highest

6 0

3 years ago

Read 2 more answers