Answer: Yes
Explanation: When powdered drink is mixed in the water, saturated solution will be formed. After some time, a point would come when the powdered drink would stop getting mix into the water. That point is known as saturation point. This point would give a clear solution as all the solute particles are dissolved in the solvent completely.
Now if we let all the liquid evaporate out of the pitcher, then we would be able to see only those particles which would not be dissolved into the solution completely.
B.membrane
C.wall
D.nucleus
Answer: 1.00 M
Explanation: The problem can be solved using the formula of dilution which is the product of Molarity and volume M1V1= M2V2.
Derive for M2, so the formula will be M2 = M1V1 / M2
M2 = 2.00 M ( 0.400 L ) / 0.800 L
= 1.00 M
Answer:
1.00 M
Explanation:
Got It Correct
B. Measurements can be made only on models.
C. Models help scientists visualize things they can’t see.
D. Models are perfectly accurate representations of objects.
E. Scientists can analyze models to make predictions.
Answer:
Option (C).
Models help scientists visualize things they can'tsee
Explanation:
Since a long time models have been used by scientists to study about various things and phenomenons. A model helps the scientist community understand things that they cannot actually see or fathom. It can be thought of as a thinking tool, to help form explanations. It represents physical and touchable visualization of the theory rather than imaginative.
Models are useful simplifications to aid understanding. It can then be used to explain further phenomena and to make predictions of future behavior. Hence, models are very helpful for scientists in various studies.
Answer:
AI-generated answerScientists use models for several reasons:
1. Models make some things easier to understand: Models are simplified representations of complex phenomena or systems. They help scientists break down complicated concepts into simpler components, making it easier to understand and study.
2. Models help scientists visualize things they can't see: Many scientific phenomena occur at scales that are too small or too large to observe directly. Models allow scientists to visualize these phenomena by creating representations that are more manageable and observable. For example, scientists use models to understand atomic structures or celestial bodies.
3. Scientists can analyze models to make predictions: Models provide a way for scientists to test and analyze various scenarios without directly manipulating the real system. By adjusting variables in the model, scientists can make predictions about how the real system might behave under different conditions. This allows them to gain insights and make informed decisions without the need for costly or time-consuming experiments.
4. Measurements can be made only on models: In certain situations, it may be difficult or impossible to make direct measurements on the real system. In such cases, scientists can create models that replicate the behavior of the system and make measurements on the model instead. This allows them to gather valuable data and draw conclusions about the real system. It is important to note that while models are valuable tools for scientific understanding, they are not always perfectly accurate representations of objects or phenomena. Models are simplified versions of reality, and they may not capture all the complexities or intricacies of the real system. Scientists continuously refine and improve models based on new evidence and observations.
Explanation:
The balanced chemical equation between solid chromium and solid iodine to form solid chromium(III) iodide is: 2 Cr(s) + 3 I₂(s) ⇒ 2 CrI₃(s)
Let's consider the unbalanced equation that occurs when solid chromium reacts with solid iodine to form solid chromium(III) iodide. This is a synthesis or combination reaction.
Cr(s) + I₂(s) ⇒ CrI₃(s)
We will balance it using the trial and error method.
First, we will balance I atoms by multiplying I₂ by 3 and CrI₃ by 2.
Cr(s) + 3 I₂(s) ⇒ 2 CrI₃(s)
Finally, we get the balanced equation by multiplying Cr by 2.
2 Cr(s) + 3 I₂(s) ⇒ 2 CrI₃(s)
The balanced chemical equation between solid chromium and solid iodine to form solid chromium(III) iodide is: 2 Cr(s) + 3 I₂(s) ⇒ 2 CrI₃(s)
You can learn more about balancing equations here: brainly.com/question/7181548
Answer:
2 Cr(s) + 3 I2(s) → 2 CrI3(s)
Explanation:
Reactants:
Solid Chromium
• Chromium is a transition metal with an elemental symbol → Cr
• It can exist as a stable monatomic solid → Cr(s)
Solid Iodine
• Iodine is a non-metal halide of Group 7A → I
• It exists as a diatomic solid → I2(s)
Products:
Chromium(III) iodide
• Chromium, Cr → roman numeral III → +3 charge → Cr3+
• Iodide, I → from group 7A → -1 charge → I-
• When ions combine, their charges or oxidation numbers crisscross to become subscripts
• Cr will have a subscript of 1 from I- → Cr
• I will have a subscript of 3 from Cr3+ → I3
• Subscript 1 is no longer indicated → CrI3(s)
Unbalanced Chemical Reaction: Cr(s) + I2(s) → CrI3(s)
Balancing the chemical reaction:
1. Balance I:
Cr(s) + I2(s) → CrI3(s)
• There are 2 I in the reactant and 3 I in the product side
• Balance I by adding the coefficient 3 in I2 and 2 in CrI2
• There would be a total of 6 I in the reactant and product sides
Cr(s) + 3 I2(s) → 2 CrI3(s)
2. Balance Cr:
Cr(s) + 3 I2(s) → 2 CrI3(s)
• There is 1 Cr in the reactant and 2 Cr in the product side
• Balance Cr by adding the coefficient 2 in Cr(s)
• There would be a total of 2 Cr in the reactant and product sides
2 Cr(s) + 3 I2(s) → 2 CrI3(s)
The mass and volume are thephysical properties that define matter. A matter is anything that can be seen or touched and is said to have mass, volume, density, and occupies space.
A matter is a substance present in the universe that occupies space and is said to have a definite volume and mass. Based on its physical arrangement and composition the matter can be gas, liquid, plasma, or solid.
The mass, volume, and density define the matter and its particles with specific mass and sizes due to the presence of sub-atomic particles like neutron, electron, and proton.
The amount of matter in the universe can be measured in kilograms and grams as mass, and the space occupied by it in cubic meters (m³) as volume.
Therefore, the matter is said to have volume and mass.
Learn more about the matter here:
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Explanation:
the scientific method is a series of steps or procedures that scientists or anyone who has a question follows to answer any question that they may have. (it's in my own words)