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laila [671]
3 years ago
14

The first letter of a chemical symbol must be

Chemistry
1 answer:
Llana [10]3 years ago
8 0

In some cases the symbol comes from an abbreviation for the old latin name of the element. For example, Fe stands for iron (ferrum) and Cu for copper (cuprum). The first letter of the chemical symbol is always capitalized. If the symbol has two letters, the second letter is always lowercase.

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Write a scientific explanation that answers the following question: How do you know scientifically that fat and soap are differe
Fantom [35]
Fat and soap are different substances. <span>One reason is that they have a different malleability. The Soap is very hard and sturdy. The fat is soft. Also, soap and fat are different because they had different smells. The soap had a refreshing smell and a soapy one and the fat smelled rubbery like Play-doh.  Another reason why fat and soap are different substances is that they don’t dissolve the same in water and oil. Soap is soluble in water and shortening is not soluble in water. Soap is not soluble in oil and shortening is soluble in oil. In the water shortening did not become cloudy but soap did. When placed in oil, the shortening disappeared completely, while soap did not change at all.The melting point of the fat was 57.6 we could not find the melting point of the soap. The soaps melting point is higher than the water's boiling point. A property is something that describes an object and does not change. For example, the soap is white, where the fat is off white. Color is a property. Fat and soap are also different because they have different densities. The soap sank but the fat floated. The density of fat is about .88 g/ml and the density of soap is about 1.18 g/ml. </span><span>Fat and soap are not the same substances one reason is they have different properties.Malleability, hardness, solubility, melting point,color, and density are all properties. </span>A property is a characteristic of a substance that does not change. Different substances have different properties.<span> If they had the same properties, they would be the same substance, but, since they don’t, they are different substances.

Hope this helps :D</span>
5 0
4 years ago
Sodium hydroxide + sulfuric acid​
trasher [3.6K]

Answer:

NaOH + H2SO4 ‐‐> 2H2O + Na2SO4;

4 0
3 years ago
Read 2 more answers
You are to write a poem or song about the planets and the information you submit have to be true about each planet.
snow_tiger [21]
Someone added the answer already hope that helps you out
7 0
3 years ago
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How many moles of copper(II)sulfate are in in 5.00 L of a 2.00 M solution?
Julli [10]

Answer:

There are 10 moles of copper(II)sulfate.

Explanation:

We know that molarity is a concentration measure that expresses the moles of solute per liter of solution: in this case, being 1.30 molar, there are 1.30 moles of solute in 1 liter of solution. We solve with the following simple rule of three:

1 L solution-----2 moles of copper(II)sulfate

5 L solution----x= (5 L solution x 2 moles of copper(II)sulfate)/1 L solution

<em>x= 10 moles of copper(II)sulfate</em>

3 0
4 years ago
Use the word bank to complete the charts about the metrics system measurement
Aloiza [94]

Answer:

Length

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- millimetre

- kilometre

- meter

Mass

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- kilogram

Capacity

- liter

- millilitre

I don't know why mass is there but hope this helps! :)

5 0
3 years ago
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