Stirring a liquid while you are mixing in another ingredient speeds up the rate of dissolving. Question 13 options: True False
Answers
Answer:
true
Explanation:
This is because it helps distribute the particles that are being dissolved.
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Students are able to introduce a sample of gas into a chamber with a moveable wall, allowing them to change the size of the portion of the chamber occupied by the gas. When the volume of the gas is reduced, what change in property would be the most reasonable to expect? a.)the temperature will decrease b.)the pressure will decrease c.) the pressure will increase d.) the density will decrease
Answers
Answer
When vibration of molecules increases, the temperature, internal energy and kinetic energy of the substance increases.
Explanations
The kinetic theory of matter explains that when vibration of molecules increase as a result of heat, molecules move faster and the space between atoms increases. The increased molecular motion results into expansion of the object which takes more space. Increased vibration can make a molecule absorb discrete amounts of energy through the various vibration modes. When the motion increases, the velocity of the entire molecule rises as a random Brownian movement to increase the kinetic energy and internal energy of the molecule.
Answer:
All of the above. Hope this hepls:)
Answers
Answers
Answer: Synthesis reaction
Explanation:
Corrosion is the process of slow eating away of metal due to attack of atmospheric gases on the surface of metal resulting into formation of compounds such as oxides, sulfides , carbonates etc is called as corrosion.
Corrosion of iron is called as rusting. Rust is hydrated ferric oxide .
Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.
b)hydrogen and chlorine
c)nitrogen and oxygen
d)sulfur and oxygen
Answers
Ionic compounds are formed between a metal and non-metal. An ionic compound can be formed between strontium and chlorine and the compound is called strontium chloride.
What is ionic compound?
Ionic compounds are formed by losing an electron from an electropositive element to an electronegative element. Thus between a metal and non-metal.
Ionic bonds are the strongest bond and it creates partial charges in the compound since the bonded electrons are attractively pulled towards the more electronegative element in the bond and thus the metal ions gets a positive charge and nonmetal gets a negative charge.
Covalent bonds are formed by sharing electrons between two nonmetals. Hydrogen and chlorine forms the covalent compound HCl. Similarly, nitrogen and oxygen always forms covalent bonds.
Sulfur and oxygen are comparable in electronegativities and thus forms a covalent bond. Therefore, the elements which forms an ionic compound are strontium and chlorine forming strontium chloride. Hence, option A is correct.
To find more about ionic compounds, refer the link below:
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Answer:
strontium and chlorine
Explanation:
Answers
(Reactants) → (Products)
In this equation, the total mass of the reactants is
A) equal to the mass of AgCl.
B) less than the mass of AgCl.
C) equal to the total mass of the products.
D) greater than the total mass of the products.
Answers
Answer:
C the total mass of the reactants = mass of products
Explanation:
In a chemical reaction atom are not created or destroyed, they are just rearranged