Think of two organisms.

What makes each organism unique? Describe at least two ways they are different.

Describe 2 similar characteristics your organisms share.

Humans need gasoline for transportation, but using gasoline releases many pollutants. City government cab set policies to decrease the amount of gasoline third citizens use Which two policies would most likely decrease a city's gasoline use?

balloon filled with water is places in a microwave until it bursts. Name two different physical changes that occur during this reaction

An 8.10-g sample of hydrated magnesium carbonate is heated. It has a mass of 4.94 g after heating. What is the percentage by mass of water in the hydrate? 3.16% 17.6% 39.0% 61.0%

Given the parent compound, draw the mass spectrum fragment that is observed at m/z 91. Include any hydrogen atoms and the charge.

Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass, volume, and density. What are the units for each property? The units used for mass were. The units used for volume were.

How does molecular size affect solubility

Is mass conserved when 200 g of water undergoes a physical change? Use complete sentences to support your answer by explaining how this can be demonstrated.

For wach of the following cases, state whether the density of the object increases, decreases, or remains the same: (a) A sample of chlorine gas is compressed (b) A lead weight is carried up a high mountain. (c) A sample of water is frozen.

A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.

The state of matter for an object which has a definite volume but not a definite shape is ... Solid state Liquid state Gaseous state