Which technique is used to compare ink on a suspect document?

A) thin-layer chromatography

B) infrared spectrophotometry

C) blotting with alcohol method

D) ultraviolet spectrophotometry

If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highest density? A. the layer at the top of the glass B. the third layer from the bottom of the glass C.

How many atm are in 1520mmHg

A 56 g sample of peanut oil has a volume of 60.9 cm³. Calculate the density of the peanut oil. Remember to use the correct number of significant digits in your answer. Density = g/cm3

Many devices use the electromagnetic spectrum including radios, cell phones, and medical equipment. When designing a device using the electromagnetic spectrum, which type of waves will provide the device with the most energy?

A high jump is 6 feet, 10 1/4 inches. What is the high jump in meters? Its 2.09 but i need someone to show me how i would explain it.

elect all of the true statements regarding chemical equilibrium. The concentrations of reactants and products are equal. The concentrations of reactants and products remain constant. Reactants are being converted to products and vice versa.

Is dew forming on a leaf a physical or chemical change?

What are some examples of density?

A 0.110 mol sample of an ideal gas occupies 3.50l. what is the volume of 0.250 moles of this gas at the same temperature and pressure?

Give an example of an industry i n which Chemistry is used and explain how it is.