What is the difference between elements, compounds and mixtures in terms of particle theory?

A 7th grade science class placed three large grade A eggs into beakers and recorded the mass. They then filled one beaker with vinegar, one with corn syrup, and one with distilled water. After 5 days, they recorded the new masses of the eggs.

How does atmospheric pressure at sea level compare to the atmospheric pressure on the top of a mountain? Explain.

Write a balanced half-reaction for the reduction of bismuth oxide ion to bismuth ion in acidic aqueous solution. be sure to add physical state symbols where appropriate.

State evidence from the balanced equation that indicates the reaction is exothermic.

What happens when you swallow acid

True or False: According to the present atomic theory, the location of an electron in an atom is best represented by a probability cloud.

How can we measure the density of different wooden objects

According to molecular orbital theory, all diatomic molecules with an even number of electrons will be diamagnetic. True or False?

Which of the following equilibria would be impacted by a change in pressure? Select the correct answer below: H2 (g) + I2 (g) →2HI (g) NO (g) + O3 (g) →NO2 (g) + O2 (g) 2SO3 (g) →2SO2 (g) + O2 (g) CO (g) + H2O (g) →CO2 (g) + H2

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed? 15.0 mL 66.