Which of the following would be a warning sign that information about a weight loss medication is not reliable science?

d.)it is made up of millions of units of a single type of compound.

a.) a chemical change is required to separate its mixed components.

b.) it is made up of millions of atoms of a single element.

c.) a physical change can separate its mixed components.

What is the mass of sodium in 3 moles of sodium chloride

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth