QnA

The hydroxide ion (OH-) consists of one oxygen atom (O) and one hydrogen atom (H). To determine the formal charges on these atoms in the hydroxide ion, we need to compare the number of valence electrons each atom has with the number of electrons it “owns” in the ion. Oxygen (O) has six valence electrons (assuming neutral state), and hydrogen …

here are 104 weeks in two years. To determine the number of weeks in two years, we need to consider that there are 52 weeks in one year. This is because there are 7 days in a week, and multiplying 7 by 52 gives us the total number of days in a year. Therefore, to find the number of weeks …

There are six zeros in 5 million. To determine the number of zeros, we can count the number of place value positions in the number. In 5 million, there are six place value positions after the digit 5: 5,000,000. Each place value position represents a power of 10, and the number of zeros corresponds to the power of 10. In …

To calculate the molar mass of Al2(SO4)3 (aluminum sulfate), we need to determine the atomic masses of each element and multiply them by their respective subscripts. The atomic mass of aluminum (Al) is approximately 26.98 grams/mol.The atomic mass of sulfur (S) is approximately 32.06 grams/mol.The atomic mass of oxygen (O) is approximately 16.00 grams/mol. Now let’s calculate the molar mass …

In the context of science, the term “property” refers to a characteristic or attribute of a substance, material, or system that can be observed, measured, or described. Properties can be physical or chemical in nature. Physical properties: These are characteristics that can be observed or measured without changing the substance’s chemical composition. Examples of physical properties include color, shape, size, …

The cosine of π (pi) is equal to -1. The cosine function is a mathematical function that relates the angles of a right triangle to the ratios of its side lengths. In the case of π radians (180 degrees), the cosine value is -1. This relationship holds true in trigonometry and mathematics in general.

Why lysosomes are called suicidal bag? Lysosomes are capable of, destroying its own cell in which it is present. It contains many hydrolytic enzymes which are responsible for the destruction process.This happens when cell gets damaged, the cell is aged or gets infected by foreign agents like any bacteria or virus then lysosomes may burst, and the enzymes digest their …

What is the masculine gender of witch? ‘Witch’ is a feminine gender. A woman who is thought to have magic powers, and its opposite is masculine gender. Thus, masculine gender of ‘witch’ is Wizard a man who is thought to have magic powers.

The animals that live in water and land are :- CrocodileFrog / ToadTortoiseSalamanderHippopotamusCrabsMudskippers

How many seconds in a week? Let’s find the answer. In one week there are 7 days.In one day, there are 24 hours.In one hour, there are 60 minutes, andIn one minute, there are 60 seconds. So,Number of seconds in a week =1 min = 60 secs1 hr =60 X 60 = 3600 secs.1 day = 24 X 3600 = …