All categories

3 years ago

(Revision) When magnesium, Mg, form magnesium ions, Mg2+, has it beer oxidised or reduced? *

Chemistry

2 answers:

timurjin [86]3 years ago

7 0

Answer:

it has oxidized because it has has given out 2 ions

emmasim [6.3K]3 years ago

4 0

Answer:

Oxidised

Explanation:

Mg -------> Mg2+ +2electrons

In this case Mg loses two electrons and loss of electron is oxidation so Mg oxidised.

You might be interested in

How many significant figures are in the number 020.310

True [87]

Answer:

Explanation:

Sorry, don't have one

<u><em>Hope this helps and I get brainliest <3</em></u>

6 0

3 years ago

How many elements have scientists discovered

Luda [366]

Answer:

118

Explanation:

The discovery of the 118 chemical element known to exist us of 2021

5 0

3 years ago

Your boss tells you that water at 68 F is flowing in a cooling tower loop at a rate of 600 gpm, in an 8-inch inside diameter pip

avanturin [10]

Explanation:

The volumetric flow rate of water will be as follows.

q = $600 gpm \times \frac{0.000063 m^{3} s^{-1}}{1 gpm}$

= 0.0378 $m^{3}/s
$

Diameter = $8 in \times \frac{0.0254 m}{1 in}$

= 0.2032 m

Relation between area and diameter is as follows.

A = $\frac{\pi}{4} \times D^{2}$

= $\frac{3.14}{4} \times (0.2032 m)^{2}$

= 0.785 x 0.2032 x 0.2032

= 0.0324 $m^{2}$

Also, q = A × V

or, V = $\frac{q}{A}$

= $\frac{0.0378 m^{3}/s}{0.0324 m^{2}}$

= 1.166 m/s

As, viscosity of water = 1 cP = $10^{-3}$ Pa-s

Density of water = 1000 $kg/m^{3}$

Therefore, we will calculate Reynolds number as follows.

Reynolds number = $\frac{D \times V \times density}{viscosity}$

= $\frac{0.2032 m \times 1.166 m/s \times 1000}{10^{-3}}$

= 236931.2

Hence, the flow will be turbulent in nature.

Thus, we can conclude that the Reynolds number is 236931.2 and flow is turbulent.

8 0

3 years ago

Lesson 14.2 Interpret graph boyles law

docker41 [41]

As what we can see on the graph of the Boyle's Law, we can imply that volume and pressure are inversely proportional. The gas law furthermore explains that at this condition, the temperature must be held constant. The law can be furthermore be explained using the equation:

PV = k

6 0

3 years ago

How are the Penguins shaped and influenced by the habitat they live in?

Whitepunk [10]

Answer:

Explanation:

Penguins have webbed feet to help them swim, waterproof feathers and very good vision underwater , they also have thick skin and blubber to help them keep nice and warm so they can have fun and fish for food with out worrying about being very cold. Hope that helped UwU

6 0

3 years ago