Answer: (Chlorine-35)
Element X is Ca
Explanation:
Number of proton plus the number of electron gives the mass number.
Answer:
It's compound? It's chemical compound would be represented my letters or numbers
Answer:
D.Salad
Explanation:
A mixture is a substance that combines two or more substance that are physically combined. A mixture can be easily seperated by a physical means . A mixture is the combination of various substances that are not chemically combined .Examples of mixtures are cake and salad . The cake contains various substances like egg, flour and sugar. This mixture can be easily separated into it individual entities by a physical means .
Base on the option the only mixture among the option is salad . Salad is a a mixtures that combines substances like tomatoes , fruits and vegetable. The individual substances that makes up the salad can be easily separated.
Sugar is a compound . Water is a compound as it contains two elements and potassium is an element.
H2O is the chemical formula of water. It means that each molecule of water is made up of two hydrogen atoms, indicated by the letter H, and a single oxygen atom, represented by the O. Water is a chemical substance with no smell, taste, or color.
6.6ml will be the new volume if the pressure increases to 4 atm and the temperature are lowered to 200 K.
<h3>What is an ideal gas equation?</h3>
The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).
Given data:
![V_1=20 ml](https://tex.z-dn.net/?f=V_1%3D20%20ml)
![T_1=3](https://tex.z-dn.net/?f=T_1%3D3)
![P_1=2 atm](https://tex.z-dn.net/?f=P_1%3D2%20atm)
![T_2=200 K](https://tex.z-dn.net/?f=T_2%3D200%20K)
![P_2=4 atm](https://tex.z-dn.net/?f=P_2%3D4%20atm)
![V_2=?](https://tex.z-dn.net/?f=V_2%3D%3F)
Using equation:
![\frac{P_1 X V_1 XT_2}{P_2 X T_1}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1%20X%20V_1%20XT_2%7D%7BP_2%20X%20T_1%7D)
![V_2 =](https://tex.z-dn.net/?f=V_2%20%3D)
![\frac{2 atm X 20 ml X200 K}{4 atm X 300 K}](https://tex.z-dn.net/?f=%5Cfrac%7B2%20atm%20%20X%2020%20ml%20X200%20K%7D%7B4%20atm%20%20X%20300%20K%7D)
![V_2 = 6.6 ml](https://tex.z-dn.net/?f=V_2%20%3D%206.6%20ml)
Hence, 6.6ml will be the new volume if the pressure increases to 4 atm and the temperature are lowered to 200 K.
Learn more about the ideal gas equation here:
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