Bond formation is the way in which atoms interact to form compounds.
<h3>What is bond formation?</h3>
Bond formation is the way in which atoms interact to form compounds. The following are the kind of bonds formed by the atoms;
C and AI - ionic bond
N and P - covalent bond
N and O - covalent bond
The bonds in each of the lattices are;
CuO - ionic bond
Hg - metallic bond
P2O5 - covalent bond
P - covalent bond
CaCl2 - ionic bond
The following is a depiction of the processes shown;
Na0 →Na+1 - oxidation
P0→P+5 - oxidation
AI+3 → AI0 - reduction
The balanced reaction equations are;
2H2O + F2 → 2HF + O2
SO2 + 3H2 → H2S + 2H2O
2H2SO4 + C → 2SO2+CO2+2H2O
Learn more about balancing reaction equation:brainly.com/question/22064431
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Answer:
The equivalent circuit for the electrode while the electrolyte gel is fresh
From the uploaded diagram the part A is the electrolyte, the part part B is the electrolyte gel when is fresh and the part C is the surface of the skin
Now as the electrolyte gel start to dry out the resistance of the gel begins to increase and this starts to limit the flow of current . Now when the gel is then completely dried out the resistance of the gel then increases to infinity and this in turn cut off flow of current.
The diagram illustrating this is shown on the second uploaded image
Explanation:
Usually concentrations are expressed as molarity, or moles of solute per liter solution. First, convert the mass of bromide ion to moles. The molar mass of bromine is 79.904 g/mol.
Moles of bromine = 65 mg * 1 g/1000 mg * 1 mol/79.904 g = 8.135×10⁻⁴ moles
Next, convert the mass of seawater to volume using the density.
Volume of seawater = 1 kg * 1 m³/ 1,025 kg * 1000 L/1 m³ = 0.976 L
Thus,
Molarity = 8.135×10⁻⁴ moles/0.976 L = 8.335×10⁻⁴ M
Answer:
518.52K
Explanation:
Charles law, which describes the direct relationship between the volume and the temperature of a gas when the pressure is constant, will be used for this question. The Charles law equation is:
V1/T1 = V2/T2
Where; V1 is the volume of the gas at an initial state (Litres)
T1 is the absolute temperature of the gas at an initial state (Kelvin)
V2 is the volume of the gas at a final state (Litres)
T2 is the absolute temperature of the gas at a final state (Kelvin)
According to the question, V1 = 2.3L, T1 = 25°C, V2 = 4L, T2 = ?
We need to convert the temperature to the absolute temperature unit in Kelvin (K) i.e.
T(K) = T(°C) + 273.15
T(K) = 25°C + 273.15
T1 (K) = 298.15K
To find for T2 in the equation, we make T2 the subject of the formula:
T2 = V2 × T1 / V1
T2 = 4 × 298.15 / 2.3
T2 = 1192.6/2.3
T2 = 518.52
Thus, the temperature must be heated to 518.52K in order to expand to a volume of 4L. This answer is in accordance to Charles law that the volume increases with increase in temperature and vice versa.
In order to calculate the percentage of a substance (sucrose this time) in a sample of known mass, the mass of the substance needs to be determined first.
The mass of a substance can be determined from its number of moles and molar mass, such that:
mass = mole x molar mass
Once the mass of the substance is determined, the percentage of the substance in 20.0 g sample can be calculated as:
Percentage of substance = mass of substance/mass of sample x 100
Hence, assuming that the mass of sucrose is x g:
percentage of sucrose in the sample = x/20 X 100
= 5x %
More on percentage calculation can be found here: brainly.com/question/12616082