Pb(NO3)2+KI ——-> KNO3 + PbI2

This is a chemical equation that needs to be balanced,,, also the I’s are i's

The balance form of the equation is given below.

Pb(NO3)2+2KI ——-> 2KNO3 + PbI2

Explanation:

In this equation lead nitrate and potassium iodide are reactants while potassium nitrate and lead iodide are the products. In the unbalanced form of equation, two molecule of iodine are formed in the product whereas there is only one molecule of iodine is present in the reactant. So for balancing this, 2 value is put in front of potassium iodide but by putting 2, potassium is also double in the reactant so 2 is also placed in front of potassium nitrate in the product and the equation is balanced.

The balanced equation is Pb(NO3)2 + 2KI ——-> 2KNO3 + PbI2.

Explanation: In writing chemical equations, the law of conservation of mass which states that matter can neither be created nor be destroyed in an ordinary chemical reaction must be obeyed. This means that the total mass of the reactants must be equal to the total mass of the products formed.

Pb(NO3)2 + 2KI ——-> 2KNO3 + PbI2.

The number of atoms on both sides of the equation must equal in the above equation.

The number of Pb atom is 1 on both sides. The number of N atoms is 2 on both sides. The number of O atoms on both sides is 6, the number of K atoms on both sides is 2 while the number of I atoms is 2 on both sides.

Therefore, the equation is balanced.

a

explanation:

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school