In order to perform an experiment, a chemist needs an element that has similar properties of sodium (Na) but has a lower atomic mass. Which element should the chemist select for the experiment?
A. Rubidium (Rb)
B. Potassium (K)
C. Lithium (Li)
D. Calcium (Ca)

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In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.

A restaurant advertises that it is environmentally friendly. It describes the solar panels it uses to generate electricity and the locally grown produce it serves. All the meals it offers are prepared over an open wood fire. Food is served on recycled copper plates, and drinks are served in recycled aluminum cups.

Which correctly lists three renewable resources used by the restaurant?

aluminum, copper, produce
copper, produce, sunlight
produce, sunlight, wood
sunlight, wood, aluminum

QUESTION 2

In which relationship do both species benefit?

A.Mutualism

B.Commensalism

C.Parasitism

Think of another way that your body maintains balance when your environment (inside or out) changes.
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What is the average density of the Earth's inner core?
A. 10 g/cm 3
B. 20 g/cm 3
C. 15 g/cm 3
D. 5.4 g/cm 3

help me whith this
Describe the processes of photosynthesis

Which product has a bitter taste, is slippery when mixed with water, and can damage skin and eyes?

sodium hydroxide

lactic acid

acetic acid

citric acid

Which of the following is a factor in natural selection?
A. Individuals of species compete with one another to survive.
B. Individuals better able to adapt to changes leave more offspring.
C. All species are genetically diverse.
D. All of the above.