tD Page view A Read aloud V Draw Highlight O Erase Certainty (marked on the ruler) and one uncertain digit on report sheet. The unit of the numbered lines is cm for both rulers. Ruler 1 6 Ruler 2 8 10

The mass of water in gm is always .... its volume in cm3

Two beakers contain clear colorless liquids, when the contents of the beakers are mixed,a white solid is formed (a)is this an example of a chemical or or a physical change(b) what would be the most convenient way to separate the newly formed white solid form the mixture-filtration, distillation, chromatography. elaborate your answer

Density is a physical property of a molecule that's measured as mass per unit volume. A) Given that density is usually expressed in the units of g/cm°, calculate the density of a cube of plastic that has a mass of 2.331 g and an edge length of 1.500 cm (volume of a cube is V = ).

A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is (note 2.201 lb = 1 kg)

Given that 1 inch = 2.54 cm, 1.00 cm³ is equal to

On average, a 1.3 gram tablet has 500. milligrams of calcium carbonate. What is the mass/mass percent of calcium carbonate in the tablet?

Hi, I'm learning about Density in chemistry , and I'm confused about the exemplos that the professor give me about significant figure, because we told us that 0 is only significant if there is a number bigger then 1 in front . But on the example he give us, the first one he left the 0 but on the second he did not !!

Alie measures out a sample of naphthalene using a graduated cylinder. She reads the measurement as 9.84 mL. The actual volume is 10.29 mL. What is her percent error?

Round  0.00971659  to three significant figures.