particles that have enough energy to break free from each other and move around freely and spread out from each other is a gas or liquid?
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To safely observe the odor of a chemical in a test tube you should?
When Kay added 30 g of hydrochloric acid (HCl) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g?A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.
Use ice wedging in a sentence
A.
Heat always flows from cooler objects to warmer objects.
B.
Heat always flows from warmer objects to cooler objects.
C.
Heat never travels in a similar pattern.
D.
Heat never transfers from solids to liquids.
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it will flow from the warm and then to the cooler trying to balance out the energy and heat
B.) Change in concentration of reactant
C.) Temperature
D.) Particle size
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The variables which can affect the speed of a chemical reaction are inihibitor, concentration, temperature and particle size.
What is the speed of reaction?
Speed of any reaction also known as rate of reaction and it gives idea about the duration that at how much time it will complete.
- Addition of inhibitor slows down the speed of the reaction as inhibitor blocks the activity of the reactants.
- Change in concentration of reactant also chnages the speed of the reaction because it completely depends on the reactant concentration.
- Temperature changes also affect the speed of the reaction as it changes the kinetic property of the reaction.
- Particle size provides the surface area to get react so changes in this property will also changes the speed of the reaction.
Hence all of the above will changes the speed of the reaction.
To know more about speed of reaction, visit the below link:
Your answer is B(I'm not very much sure about this one), C, and D.
I hope very much that I am correct, hope this helps you.
~Onyx~
find angle ABE.
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Answer:
The measure of angle ABE is 27°.
Explanation:
Consider the below figure attached with this question.
Given information: ∠ABE=2n+7 and ∠EBF=4n-13.
From the below figure it is clear that ∠ABE and ∠EBF are congruent.
Isolate variable terms on one side.
Divide both sides by 2.
The value of n is 10.
We need to find the measure of ∠ABE.
Therefore, the measure of angle ABE is 27°.
The measure of angle ABE is 27°.
Since the angles are congruent, therefore, ∠ABE=2n+7 and ∠EBF = 4n-13 will be equated to each other.
This will be;
2n+7 = 4n-13
Collect like terms
4n-2n = 7+13
2n = 20
Divide both sides by 2.
2n/2 = 20/2
n = 10
Therefore, the value of n is 10.
Since angle ABE = 2n + 7
ABE = 2[10] + 7
= 20 + 7 = 27°.
Therefore, the measure of angle ABE is 27°
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Conduction occurs when heat is transferred into an object through motion or movement
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O ice at 0°C
O liquid water at 90°C
O steam at 100°C
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The average kinetic energy of water molecules is greatest in steam at 100°C.
Kinetic energy of water
Water is a polar solvent that has potential energy on its own which can be converted to kinetic energy once the water is in motion.
The kinetic energy is that energy that a moving body possesses.The faster a molecule moves, the more kinetic energy it has, and the higher the measured temperature.
That being said, when the temperature of water is increased, there would be increased molecular motion leading to a higher kinetic energy.
Therefore, the average kinetic energy of water molecules is greatest in steam at 100°C.
Learn more about kinetic energy here:
Answer:
steam at 100°C
Explanation:
Grandpoint approved