b. On absorbing a given amount of heat, which of the substances would change in temperature by the smallest amount? Aluminum Iron Glass Copper Water

Answer:

i going off the top of my head

Explanation

Interpreters: They facilitate communication between a deaf and hearing person in different modalities, such as ASL, tactile interpretation, or Cued Speech.

Speech-to-text services: They translate spoken communication and other auditory information into text in real-time, using services such as CART, C-Print, or Type Well.

Assistive listening systems: They enhance the understanding of speech for deaf people who use their residual hearing or personal devices, such as FM/DM, infrared, or induction loops.

Note takers: They capture important pieces of information in a systematic way for deaf students who split their attention between other accommodations and the instructor.

Answer:

The answer is (e) none of the above. The combined gas law relates the pressure, volume, and temperature of a gas, so all three variables (pressure, volume, and temperature) must be considered and at least one of them should be held constant to use the combined gas law. The mass of the gas sample, number of moles of gas, and number of gas molecules are not directly related to the combined gas law.

The most likely explanation for the given observations is that the crystals lose water when heated, resulting in a transition from crystals to a powdery substance and a decrease in mass after cooling. Option A

When certain substances contain water molecules as part of their crystal structure, heating them can cause the water molecules to evaporate, leading to the loss of water. This can result in a change in the physical properties of the substance, such as a transition from crystalline to powdery form.

The absence of condensation or other visible changes inside the test tube suggests that the substance is not reacting with the air or giving off a colorless gas. If such reactions were occurring, there would likely be observable changes or reactions taking place.

The decrease in mass after cooling can be attributed to the loss of water molecules. Water has mass, and when it evaporates, it escapes from the test tube, causing a reduction in the overall mass of the substance.

Option A

For more such questions on transition visit;

https://brainly.com/question/2879928

#SPJ8

Damage caused by road salt is most pronounced during the summer rather than the winter months because it increases the rate of corrosion.

This is referred to as the process in which there is a gradual deterioration of materials by chemical reaction with their environment.

Their environment consists of humans and other factors and in a situation where the salt is added to the road it leads to corrosion which makes it inaccessible and poses as a risk factor to vehicles which is why it is carefully used mostly during the winter months.

In a situation whereby salt is added during the summer months, it leads to a higher degree of corrosion because of the high temperature present during this period which is why it was chosen as the correct choice.

Read more about Corrosion here https://brainly.com/question/678507

#SPJ1

The following are three weather variables and the tools that can be used to observe and gather data on them to ascertain how air mass movements and weather changes are related:

Scientists can discover patterns and connections between changes in weather and changes in air mass movement by observing and recording data on these meteorological variables.

learn more about weather conditions here

https://brainly.com/question/1034593

#SPJ1

Answer and Explanation:

Let's review each molecule:

- Fructose: is a ketonic simple sugar that contains 6 carbons (hexose) found in many plants such as vegetables, fruits, and honey.

- Cellulose: is a biopolymer that has glucose as the basic unit in its structure. You can find cellulose in vegetables, fruit, grains, beans, and seeds.

- Sucrose: this is known as table sugar. Sugar has a molecule of glucose and fructose bond and you can find it in sugar cane, sugar beet, and candies.

- Oil: is a nonpolar hydrocarbon and you can find it in many types of oils such as coconut, olive, palm, and sunflower oil, among others.

- Fat: they are known as triglycerides too and contain 3 fatty acids bonded to glycerol. We can find it in eggs, fish, avocado and other fruits, milk (dairy), and so on.

- Amino acids: when protein denaturalizes, we obtain amino acids. We can find these amino acids in protein products such as beef, eggs, fish, chicken, soy, quinoa, and lentils, among others.

Jeremiah can arrange the materials in the following way to create a model that shows the processes by which water is cycled from a lake into the atmosphere and back to the lake

The following can be a representation of the water cycle;

Fill the glass jar with water to resemble the lake.

Put the lamp next to the jar to symbolize the sun.

Wrap the jar in plastic sheet to imitate the atmosphere.

Turn on the bulb to represent the sun warming the water.

When the water in the jar warms up and evaporates into water vapor, moisture will condense on the plastic wrap.

The water vapor will ascend and collect on the plastic wrap to represent the water vapor rising into the atmosphere.

Water vapor cools as it rises and condenses back into liquid form, as shown by the water droplets gathering on the plastic wrap.

Learn more about the water cycle:https://brainly.com/question/31195929

#SPJ1

The change in volume of the system if 325 J of work is done by a system is -3.21L.

To calculate how much work a gas has done (or has done to it) against a constant external pressure, the following formula is used;

W = -P × ∆V

Where;

According to this question, if 325 J of work is done by a system at a pressure of 1.0 atm and 298 K. The change in volume can be calculated as follows:

325J is equivalent to 325/101.325 = 3.21L/atm

3.21 = -1 × ∆V

3.21 = -∆V

∆V = -3.21L

Learn more about volume at: https://brainly.com/question/24189159

#SPJ1

An electron has a negative charge.

The charge of an electron is a fundamental property of the particle, and it is denoted by the symbol "e." The magnitude of the charge of an electron is approximately 1.602 × 10^-19 coulombs (C). This value is considered the elementary charge and is used as a reference for other charges. The charge of an electron plays a significant role in determining the behavior and interactions of atoms and molecules. It is opposite in sign to the charge of a proton, which is positive. The electron's charge allows it to interact with other charged particles, such as protons and ions, through electrostatic forces. Electrons are subatomic particles that orbit the nucleus of an atom in specific energy levels or orbitals. They contribute to the overall stability and chemical properties of atoms and participate in chemical bonding and reactions. The movement of electrons between atoms is what enables the formation of chemical bonds and the sharing or transfer of electrons to create ions. In summary, the charge of an electron is negative, and it plays a fundamental role in the structure and behavior of atoms and molecules.

for more questions on electron
https://brainly.com/question/26084288
#SPJ8

Answer:

The health effects of ozone layer depletion is discussed below

Explanation:

. Ozone layer depletion effects improved UV radiation levels at the

Earth's covering, which is degrading to human well-being.

Negative consequences involve improvements in several varieties of

skin cancers, eye cataracts, and immune insufficiency diseases.

• Ozone layer exhaustion improves the quantity of UVB that touches the

Earth's exterior.

Answer:

Density of Water

Explanation:

Marlon can conclude that the cell belongs to the Kingdom Protista if he observes that the paramecium has a nucleus.

The presence of a nucleus is a characteristic feature of eukaryotic cells, which are found in Protists, Fungi, Plants, and Animals. Therefore, if Marlon observes that the paramecium has a nucleus, he can conclude that the cell belongs to the Kingdom Protista, which includes unicellular eukaryotic organisms.

The presence of a nucleus is one of the defining features of eukaryotic cells, which are found in Protists, Fungi, Plants, and Animals. The Protista Kingdom includes unicellular organisms that have a nucleus and other membrane-bound organelles.

However, he would need to observe other features of the cell to further classify it into a specific group or species within the Protista Kingdom.

Learn more about  Protista Kingdom at

brainly.com/question/25148693

#SPJ1

Answer:

56,522 seconds = 942 minutes

Explanation:

n(Mg) = m/M(Mg) = 25 g / 24.31 g/mol = 1.03 mol of Mg

Q = n × 2 F = 1.03 mol × 2 × 96,485 C/mol = 197,820 C

t = Q / I = 197,820 C / 3.5 A = 56,522 s

the empirical formula is CH4N. the empirical formula is CH4N.

Considering the reaction stoichiometry, the total number of moles of NO produced from 0.25 moles of O₂ is 0.2 moles.

The balanced reaction is:

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Then you can apply the following rule of three: if by stoichiometry 5 moles of O₂ produce 4 moles of NO, 0.25 moles of O₂ will produce how many moles of NO?

\(amount of moles of NO= \frac{0.25 moles of O_{2} x4 moles of NO}{5 moles of O_{2} }\)

amount of moles of NO= 0.2 moles

Finally, the total number of moles of NO produced from 0.25 moles of O₂ is 0.2 moles.

Learn more:

Answer:

Fluorine has a higher electronegativity than carbon

Explanation:

Electronegativity trend

-As you go from left to right across the periodic table, the electronegativity increases.

-As you go from top to bottom, the electronegativity decreases.

-We know that both carbon and fluorine are in the same energy level or period 2. However, Carbon is in group 14, which has 4 valence electrons, while fluorine is in group 17, which has 7 valence electrons. Therefore, fluorine has a higher electronegativity because fluorine is desperately wanted to gain 1 more valence electron to become stable (octet rule).

Answer:

A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.”

The compound has an empirical formula of \(K_2H_2P_2O_8\) and a molecular formula of \(K_2HPO_4\).

For more questions on empirical formula

https://brainly.com/question/13058832

#SPJ8

The correct question would be as

The composition of a compound is 28.73% K. 1.48% H, 22.76% P, and 47.03% O. The molar mass of the compound is 136.1 g/mol. What is the Molecular Formula of the compound?

\(KH_2PO_4\\KH_3PO_4\\K_2H_4P_20_{12}\\K_2H_3PO_6\)

Answer:

Place a glass rod in the solution, if the crystallisation point has been reached, you should notice small crystals formed on it.

Answer:

Zero with the subscripts, +2 without them.

Explanation:

Hello!

In this case, since we consider that two silicon are bonded with four oxygen atoms to form silicon oxide according to the following chemical equation:

\(Si^{4+}+O^{2-}\rightarrow Si_2O_4\)

It is also possible to realize it can be simplified to obtain:

\(SiO_2\)

Which means that the total charge with the subscripts is zero, and without the subscripts +2 (+4-2).

Best regards!

The net force on the man is 10 newtons forward. The parachute is pushing the man forward with 10 newtons of force. Therefore, option A is correct.

The vector sum of the forces exerted on a particle or object is known as the net force. The original forces' impact on the motion of the particle is replaced by the net force, which is a single force.

In accordance with Newton's second rule of motion, it causes the particle to accelerate at a rate equal to the sum of all those actual forces.

The vector sum of all forces exerted on an object is known as the net force. The net force acting on an object is zero when it is in equilibrium, whether it is at rest or moving at a constant speed. Only when all of a vector's components are zero can a vector have a magnitude of zero.

Thus, option A is correct.

To learn more about the net force, follow the link;

https://brainly.com/question/18031889

#SPJ1

Answer: A

Explanation:

Selection is the process by which we filter out irrelevant information and focus on the information that is most relevant to us.

For example, when we walk down a busy street, we may not pay attention to every detail of every building or person we pass by. Instead, we might focus on things that stand out, such as a bright billboard or an interesting conversation nearby.

Regarding stereotypes, one common example is the belief that all individuals from a certain race, gender, or religion share certain characteristics or behaviors. This stereotype is often based on limited or inaccurate information and can lead to biased judgments and discrimination. It's essential to recognize and challenge our own stereotypes to avoid unfairly treating others based on their group membership.

Learn more about selection here: https://brainly.com/question/14874301

#SPJ1

The molar solubility of PbBr2 in the 0.500 M Pb(NO3)2 solution is 0.0101 M.

The concentration of the "dissolved solid" in a saturated solution is used to represent the solubility (by which we typically mean the molar solubility) of a solid. This would simply be the amount of Ag+ or Cl- in the saturated solution for a straightforward 1:1 solid like AgCl.

PbBr2 (s) ⇌ Pb2+ (aq) + 2Br- (aq)

The Ksp expression for this reaction is:

Ksp = [Pb2+][Br-]²

We are given the value of Ksp as 6.60×10⁻⁶.

Let x be the molar solubility of PbBr2 in the 0.500 M Pb(NO3)2 solution. Then the initial concentration of Pb2+ is also 0.500 M.

At equilibrium, the concentration of Pb2+ is equal to the molar solubility x, and the concentration of Br- is equal to 2x (because the stoichiometric ratio of PbBr2 to Br- is 1:2).

After their substitution into the Ksp formulation, we obtain:Ksp = [Pb2+][Br-]²

6.60×10⁻⁶ = (x)(2x)²

6.60×10⁻⁶ = 4x³

Solving for x gives:

x = (6.60×10⁻⁶ / 4)² = 0.0101 M

To know more about molar solubility visit:-

https://brainly.com/question/28170449

#SPJ9

The true statements are;

The reaction is endothermic

Heat is a reactant

ΔHrxn is 89 kJ/mol

Enthalpy is a thermodynamic property that represents the total energy of a system, including both its internal energy (the energy of its constituent particles) and the energy it has due to its temperature and pressure. It is commonly used in energy analysis and heat transfer calculations and is expressed in units of joules (J) or calories (cal).

We know that the enthalpy of the reaction can obtained from;

Enthalpy of the products - Enthalpy of the reactants

ΔH reaction = 2(-391.4) - 2(-435.9)

(-782.8) - (-871.8)

= 89 kJ/mol

Learn more about enthalpy: https://brainly.com/question/13996238

#SPJ1

The concentration of the solution if the absorbance of the solution at 427 nm is 0.15 and the molar absorptivity of yellow dye at 427 nm is 5.47 × 10-⁶M.

Absorbance in physics is a logarithmic measure of the amount of light that is absorbed when passing through a substance.

It is the capacity of a substance to absorb light of a given wavelength. According to this question, the absorbance of the solution at 427 nm is 0.15.

A = εmCl

Where;

C = 0.15 ÷ (27400 × 1)

C = 5.47 × 10-⁶M

Therefore, 5.47 × 10-⁶M is the concentration of the solution.

Learn more about absorbance at: https://brainly.com/question/28812538

#SPJ1

In the subsequent reaction, 12 electrons are transported. 3O2(g) + B2H6(g) = B2O3(s) + 3H2O(l).

Oxidation and reduction occur simultaneously in this kind of chemical reaction. Electrons are lost or gained during oxidation and reduction, respectively. Example: The interaction between copper and zinc.

Give each atom its its oxidation number.

2. Compare the product side's and reactant side's oxidation numbers.

3. Two elements' oxidation numbers in a redox reaction shift from the reactant side to the product side.

To know more about redox reactions visit:-

https://brainly.com/question/13293425

#SPJ13

Answer:

Preventing erosion – Land Reclamation

Protecting nesting areas – Protecting Biodiversity

Preventing littering – Land Reclamation

Preventing habitat disruption – Protecting Biodiversity

Protecting native species – Protecting Biodiversity

Preventing contamination of soil – Land Reclamation

Explanation:

I really hope I'm right! I tried my hardest, please give me brainliest :)

have a good day!

Answer:

A

Explanation:

it has a methyl group, ethyl group and amine group

The correct IUPAC name for the structure shown in the provided image is "ethylamine." The structure consists of a central nitrogen atom bonded to two carbon atoms.

The correct IUPAC name for the structure shown in the provided image is "ethylamine." The structure consists of a central nitrogen atom bonded to two carbon atoms. According to the IUPAC naming rules, the longest carbon chain is selected as the parent chain, which in this case consists of two carbon atoms. The substituent attached to the parent chain is an ethyl group, denoted as "C2H5". The amine functional group, which consists of the nitrogen atom, is named as "amine". Since there is only one amine group attached to the carbon chain, it is referred to as "ethylamine." Therefore, option C) "ethylamine" is the correct IUPAC name for the given structure.
For more question on IUPAC

https://brainly.com/question/28872356

#SPJ11