Answer:
a) Let's balance the chemical equation for the reaction between HCl and HNO3 to form NOCl, Cl2, and H2O:
First, write the unbalanced equation:
HCl + HNO3 → NOCl + Cl2 + H2O
Now, balance it step by step:
1. Balance the atoms other than hydrogen and oxygen:
HCl + HNO3 → NOCl + Cl2 + H2O
1 1 1
2. Balance the oxygen atoms by adding water (H2O):
HCl + HNO3 → NOCl + Cl2 + H2O
1 1 1 +1
3. Balance the hydrogen atoms by adding HCl on the left side:
HCl + HNO3 → NOCl + Cl2 + H2O
1 1 +1 1 +1
4. Balance the chlorine atoms by adding Cl2 on the left side:
HCl + HNO3 → NOCl + Cl2 + H2O
1 1 +1 1 +1
Now, the equation is balanced.
b) Let's balance the chemical equation for the reaction between CO and I2O5 to form CO2 and I2:
First, write the unbalanced equation:
CO + I2O5 → CO2 + I2
Now, balance it step by step:
1. Balance the atoms other than carbon and oxygen:
CO + I2O5 → CO2 + I2
1 1
2. Balance the oxygen atoms by adding CO2 on the left side:
CO + I2O5 → CO2 + I2
1 1 +2
3. Balance the carbon atoms by adding CO on the left side:
CO + I2O5 → CO2 + I2
1 +1 +2
4. Balance the iodine atoms by adding I2 on the left side:
CO + I2O5 → CO2 + I2
1 +1 +2 +5
Now, the equation is balanced.
The element that has maximum density at STP is copper.
Further explanation:
The property is a unique feature of the substance that differentiates it from the other substances. It is classified into two types:
1. Intensive properties:
These are the properties that depend on the nature of the substance. These don't depend on the size of the system. Their values remain unaltered even if the system is further divided into a number of subsystems. Temperature, refractive index, concentration, pressure, and density are some of the examples of intensive properties.
2. Extensive properties:
These are the properties that depend on the amount of the substance. These are additive in nature when a single system is divided into many subsystems. Mass, energy, size, weight, and length are some of the examples of extensive properties.
Density is a characteristic property of the substance. It is defined as the mass per unit volume. It is generally represented by .
The formula to calculate the density of the liquid is,
Standard Temperature and Pressure is denoted as STP and the volume of 1 mole of gas at STP is 22.4 litres.
The volume is constant and therefore density is directly related to mass.
Among the given elements copper has the highest molar mass and that is . Therefore the element that has maximum density at STP is copper.
Learn more:
1. Calculation of density: brainly.com/question/778841
2. Determine how many moles of water produce: brainly.com/question/1405182
Answer details:
Grade: Middle School
Subject: Chemistry
Chapter: Density
Keywords: density, mass, volume, STP, intensive, extensive, characteristic property, element, copper, chlorine, calcium, and carbon.
Following the ideal gas law PV = nRT, and changing it in terms of temperature, we get T = PV/nR. When volume of a sample of an ideal gas to double when the pressure of the sample remains the same, the temperature doubles because temperature is directly proportional with pressure and volume.
b. when atoms share electrons.
c. between metals and nonmetals.
d. when electrons are transferred from one atom to another.
Positive two
Negative one
Negative two
Answer:
The correct answer is the c = negative one
Explanation:
Hello! Let's solve this!
The electron is a particle that is part of the atom. The atom is also made up of neutrons and protons. Protons have a positive charge and are located in the nucleus. Neutrons have a neutral charge and are also located in the nucleus.
The electron has a negative charge and travels its orbitals around the nucleus.
The correct answer is the c = negative one
Answer:
calcium
Explanation: