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Ghella [55]
4 years ago
14

What is difference between primary and standard solution?

Chemistry
1 answer:
Neko [114]4 years ago
7 0
A standard solution is solution that is a containing a precisely known concentration of an an element. Primary  it's typically a reagent which can ve weighed very easily, and which is so pure that the weight of it is truly representative of the number of molecules that it contained 
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25 POINTS <br> Part C<br> Record what you observe in these images showing the banks of the Dead Sea.
NikAS [45]

One of the most significant characteristics of the Dead Sea is its salinity level. The images show the rock salt deposits on the shore.

<h3>What are the characteristics of the characteristics of the Dead sea?</h3>

  • Location

The dead dea is the most salty landlocked lake on the Earth surface. It is located in the middle East, between Israel and Jordania. Its nort-south length is about 80 km and its east-west wide varies between 7 and 20 km.

  • Afluent

The Jordan river is the most significan afluent on the Dead Sea, from which it receives most of its water.

  • Water level

The Dead Sea is the deepest and lowest water body on the Earth, being its surface level 400 mt below the sea level.

Due to different reasons, during the last decades, there was a sharp and continuous drop in the water level. For this reason the lake surface is decreasing year after year.

  • Salinity

Among its many characteristics, one of them -and probably the most notorious one- is the salinity.  The percentage of dissolved salts in the lake is much higher than the one recorded in the oceans, seas or lakes of the globe. Its value is between 8 and 10 times higher the salt level of oceans.

The salts present in the lake are chlorine, magnesium, sodium, calcium, potassium, bromine and sulfur. Their concentration vary according to the strate and deph, but it tends to increase toward the lake’s bottom. The high salinity level provides an oily aspect, bleach taste, and extreme density.

Several rock salt deposits can be seen on the shore and near it. Salt columns can also be seen in deepest areas. These structures are becomming more common with time, as water evaporates, water provision from afluent sources decreases, and salinity near the surface increases.

  • Forms of life

Mainly due to the extreme salt level, which turns to be lethal, almost no forms of life inhabit these waters. Only some bacteria species and one algae species can be found in the water, and some plant species near the coasts.

What we can observe in these images are the rock salt deposits on the shore.

You can learn more about the Dead Sea at

brainly.com/question/11851245

brainly.com/question/26055281

8 0
2 years ago
Which is an example of a mixture?
statuscvo [17]

Answer: Trail mix

Explanation: Because its mixed together with different nuts to make it

8 0
4 years ago
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A student wishes to set up an electrochemical cell. The following list of materials and equipment will be used:• two 250-ml beak
rodikova [14]

Answer:

D) a salt bridge

Explanation:

A salt bridge completes an electrochemical cell. A salt bridge maintains charge balance in the two half cells. If the salt bridge is not present, the anode compartment becomes positively charged while the cathode compartment becomes negatively charged hence the reaction reaches equilibrium and comes to a halt quickly.

8 0
3 years ago
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Substance
Grace [21]

Answer:what are u asking to do?

Explanation:

4 0
3 years ago
Give endothermic examples
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Melting ice cubes.

Melting solid salts.

Evaporating liquid water.

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