Scientists collected evidence to form a valid theory about the formation and early development of the solar system include:
- Stars forming the depths of giant clouds of gas and dust.
- Young stars with disks of debris around them.
<h3>
What is Solar system?</h3>
This is referred to the gravitationally bound system of the Sun and the objects that orbit it.
It also comprises of the planets and their moons and objects such as asteroids and the evidence which shows that the formation of the solar system are the gas and dust which form the stars and debris found around them.
This therefore makes it the evidence collected in the formation of the solar system mentioned the most appropriate choice.
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Answer:
Explanation:
Sucrose Is Made up of Glucose and Fructose
Glucose is a simple sugar or monosaccharide.
Fructose, or “fruit sugar,” is a monosaccharide like glucose
∆H (enthalpy change) should be positive because you would need energy to break the oxygen- oxygen bond to generate 2 molecules of Oxygen .
<h3>What is enthalpy change ?</h3>
It is type of energy or the measurement of energy . The quantity of enthalpy equals to the total content of heat of a system .
It can be defined as the sum of total internal energy and the product of volume and pressure .
It describes the system is endothermic or exothermic .
<h3>What is exothermic reaction? </h3>
It is a reaction in which energy is released from the system in the form of heat and light.
in this loss of energy occurs. energy liberated from system to surrounding. the enthalpy change i.e. ∆H<0.
<h3>
What is endothermic reaction? </h3>
It is a reaction in which energy is absorbed from the surrounding to the system. in this gain of energy occurs. the enthalpy change i.e ∆H>0.
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A base in water will form hydroxide ions. This is because bases are AOH while acids are AH+. I hope this helps!
Ira is working in a lab with a unknown solution. when he inserts the electrical conductivity tester in the in known, the bulb begins to glow brightly. which of these would best describe the unknown liquid ?
A) It contains polar molecules that conduct electricity.
B) The water that the solid is dissolved in conducts electricity.
C) It contains a ionic compound that conducts electricity in solution.
D) It contains a covalent compound that conducts electricity in solution.
ANSWER:
C) It contains a ionic compound that conducts electricity in solution.
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