Calorimeter is used for calculating specific heat capacities of a substance.
We can use the calorimeter in order to compare the specific heat capacities of a substance because calorimeter is a device which is used for measuring the heat produced during a mechanical, electrical or chemical reaction. This device has the ability to calculate the heat capacity of materials.
The heat released from the sample is absorbed by the water, which results in an increase in temperature. This calorimeter detect this increase in temperature and provides us information so we can conclude that calorimeter is used for calculating specific heat capacities of a substance.
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The volume of a 0.40 M Mg(NO3)2 solution contains 89g of Mg(NO3)2 is 1.5 L.
Solution is defined as a particular kind of homogenous combination made up of two or more different ingredients. Solute refers to the material that dissolves. Solvents are described as substances that do not dissolve. The substance known as salt water is a solution. A solute and a solvent combine to produce a solution; this is a physical, not a chemical process. A solution is produced when one substance splits apart or dissolves into another.
To calculate this, subtract 89g from 148.3g/mol, the molar mass of magnesium nitrate.
= 89 / 148.3
= 0.6 mole of magnesium nitrate
The volume of solution can be as
= 0.6 moles / 0.40 M
= 1.5 liter.
Thus, the volume of a 0.40 M Mg(NO3)2 solution contains 89g of Mg(NO3)2 is 1.5 L.
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the ideal gas law equation is as follows
PV = nRT
where P - pressure
V - volume
n - number of moles
R - universal gas constant
T - temperature
so if the pressure, volume and temperature are already known
we are left with n and R
since R is the universal gas constant that has a known fixed value then R too is known
so we are left with 'n'
once we know temperature volume and pressure
we can find the number of moles of gas present using the ideal gas law equation
A.) the molar amount of gas
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b. churning, or mixing, food
c. opening and closing the stomach
d. absorbing nutrients
The muscles in the stomach aid in digestion by churning, or mixing, food. Hence, option C is the correct answer.
Digestion is the complex process of turning the food you eat into nutrients, which the body uses for energy, growth and cell repair needed to survive.
The stomach is a muscular sac that lies between theesophagus and the small intestine in the upper abdomen.
The stomach is not the only part of your digestive system that absorbs food but rather is a part of the digestive system and important for churning food into a consistency that is easier to digest for the rest of your intestines.
Hence, option C is the correct answer.
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Churning or mixing food.
The stomach is a muscular sac that lies between theesophagus and thesmall intestine in the upper abdomen. The stomach is not the only part of your digestive system that absorbs food but rather is a part of the digestive system and important for churning food into a consistency that is easier to digest for the rest of your intestines.
c. water
b. carbon dioxide
d. heat
A reaction in which the reactants splits to produce two or more products is called a decomposition reaction.
It can be represented as:
XY ------> X + Y
The correct answer is:
Option A. Sucrose
This can be explained as:
C₁₂H₂₂O₁₁ (Sucrose) + 12 O₂ -----> 12 CO₂ (Carbon dioxide) + 11 H₂O (water)
Therefore, sucrose is the reactant.
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oxidation
hydrolysis
abrasion
Answer: The correct answer is oxidation.
Explanation:
Rust is a reddish-brown colored compound which is formed by the oxidation of Iron to form ferric oxide. The formula for this chemical compound is
Oxidation is defined as the reaction in which addition of oxygen takes place.
The reaction for the formation of rust is given by the equation, we get:
By Stoichiometry,
4 moles of iron metal reacts with 3 moles of oxygen gas to form 2 moles of ferric oxide.
Hence, the correct answer is oxidation.