What are the six signs of a chemical reaction?

What are the six signs of a chemical reaction? Key Concepts: Color Change. Production of an odor. Change of Temperature. Evolution of a gas (formation of bubbles) Precipitate (formation of a solid) Which type of reaction is NaCl agno3? double displacement reaction What is the balanced equation for AgNO3 NaCl? AgNO3 + NaCl = AgCl […]

Which is the hottest layer in the atmosphere?

Which is the hottest layer in the atmosphere? thermosphere What two layers are in the thermosphere? The thermosphere lies between the exosphere and the mesosphere. “Thermo” means heat, and the temperature in this layer can reach up to 4,500 degrees Fahrenheit. If you were to hang out in the thermosphere, though, you would be very […]

What are the five main elements of climate?

What are the five main elements of climate? Climate System: “The climate system is the highly complex system consisting of five major components: the atmosphere, the hydrosphere, the cryosphere, the lithosphere and the biosphere, and the interactions between them. What are the six types of weather? There are six main components, or parts, of weather. […]

Is a cow biotic or abiotic?

Is a cow biotic or abiotic? This animal has many biotic factors. One biotic factor is grazing and grass. Also, a biotic factor of the cow are predators, such as coyotes, wolves, and mountain lions. Since the holstein cattle lives on a farm, two other biotic factors are humans and other farm animals. What are […]

What was cathode ray experiment?

What was cathode ray experiment? Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged “soup.” How many types of CRT are there? two What is cathode ray tube explain […]

What variables Cannot be manipulated?

What variables Cannot be manipulated? In many factorial designs, one of the independent variables is a nonmanipulated independent variable. The researcher measures it but does not manipulate it. The study by Schnall and colleagues is a good example. How extraneous variables can be controlled? An extraneous variable is eliminated, for example, if background noise that […]

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