Answer:
D
Explanation:
Sweat glands remove waste
The correct association that lies between the structure and one of its functions is option D Sweat glands remove waste.
What is a sweat gland that eliminates waste?The sweat represents the fluid that comprises of mainly of water also there is much dissolved solid wastage that should be excreted via the sweat glands. It eliminates the excess water and salts also it served the function of colling the body at the time of thermoregulation.
Therefore, the option D is correct.
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Which of the following is NOT a product of photosynthesis?
A. Glucose
B. Energy
C. Oxygen
D. Carbon dioxide
solid particles deposit at the base of a vessel why?
Answer: solid particles deposit at the base of the vessel because they are heavy compared to the liquid particles.
Explanation:
PLZ HELP
Select the correct answer from each drop-down menu.
Water pollution and air pollution in an area have been steadily increasing. What can students do to address these environmental hazards?
A. Pass Laws
B. Organize seminars
C. Create a tax collection
to educate other students about the deteriorating environmental conditions and the steps needed to
improve the area. Also, encourage other students to volunteer for workshops about
A. recycling and waste disposal
B. Poaching
C. Deforestation
Students can address water and air pollution by organizing seminars to raise awareness and educate others about the issues,
A. Organize seminars
B. recycling and waste disposal
Water pollution and air pollution are significant environmental hazards that require collective efforts to address. Students can play a crucial role in raising awareness and taking action to mitigate these issues. Here are the appropriate answers from the given options:
What can students do to address these environmental hazards?
A. Organize seminars
B. recycling and waste disposal
A. Organize seminars: Students can organize seminars or workshops to educate other students and the community about the deteriorating environmental conditions and the steps needed to improve the area. By sharing knowledge and information, students can raise awareness about the causes and impacts of water and air pollution, as well as the potential solutions to mitigate them. Seminars can provide a platform for experts, scientists, and environmentalists to share their expertise and inspire action.
B. Recycling and waste disposal: Encouraging other students to volunteer for workshops about recycling and waste disposal is an effective step toward addressing environmental hazards. By promoting proper waste management practices, such as recycling, composting, and reducing single-use plastics, students can contribute to minimizing pollution and conserving resources. These workshops can educate students on the importance of responsible waste disposal and provide practical tips and techniques to implement in their daily lives.
In summary, students can address water and air pollution by organizing seminars to raise awareness and educate others about the issues, as well as by promoting recycling and proper waste disposal practices. Through these actions, students can foster a culture of environmental stewardship and inspire positive change in their communities.
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*20 points for anyone who can solve this!*
If the temperature of the water inside of the pressure cooker is greater than 104°C, and the water is still a liquid, then the pressure inside of the pressure cooker must be...
A) less than 1 atm
B) equal to 1 atm
C) greater than 1 atm
8.00x1019 molecules HCN to grams
Answer:
g HCN = MW HCN g/mole HCN * [8.00E19 molecules/6.022E23 molecules/mole HCN] = ??
EmForm = CaxPy
moles Ca = 0.66g / atwt Ca g/mole = ??
moles P = (1.00-0.66)g / atwt P g/mole = ??
x/y = moles Ca / moles P = ?? (express as ratio of two numbers; if both are not intergers multiply each by the same number that make them integers. This ratio gives the empirical formula.
Ca3P2
Plug and SOLVE
What is the shorthand configuration for Ca2+
1s2 2s 2p6 3s2 3p6
Explanation:
calcium has lost 2 electrons.
Summary
How do different materials respond to heat?
Answer:
Conductors easily absorb heat and An insulator does not conduct heat well
Explanation:
The elements from this section of the periodic table all belong to the same
A. Family
B. Group
C. Period
D. Valence
Plz help!!
Answer:
C. Period
Explanation:
The elements from this section of the periodic table belongs to the same period.
A period on the periodic table is a horizontal arrangement of elements according to their atomic number.
A group or family is the vertical organization of elements. Valence is the number of outer shell electrons an atom possess.Precise measurements are highly reproducible, even if the
measurements are not near the correct value.
TRUE
FALSE
True because you can be precise with the same measurements but they can be not the correct area so
it should be TRUE
The total number of electrons in the outer shell of a sodium atom is?
A. 1
B.2
C.8
D.18
Answer:
1
Explanation:
outershell atoms of an element are also known as valency of that element
so the valency and number of elctron in the outershell of a sodium atom is +1.
hope this will help
mark me as brilliant
Sort the vocabulary word below. Make sure you have come to live session or watched the 5.03 recording. These words will be important to know for the rest of this unit.
Question 1 options:
This is a flow of electrons (such as the flow of electrons in a wire to light up a lamp).
These stop the electricity from flowing (think rubber and glass).
This is slowing the flow of electrons (the current) and where some of the electrons' energy gets converted into heat.
These allow electricity to flow easily through them (think copper and aluminum).
1.
Electric Current
2.
Resistance
3.
Conductor
4.
Insulator
(Sorry it's such a long question!)
Answer:
Electric Current
This is a flow of electrons (such as the flow of electrons in a wire to light up a lamp).
Insulator
These stop the electricity from flowing (think rubber and glass).
Resistance
This is slowing the flow of electrons (the current) and where some of the electrons' energy gets converted into heat.
Conductor
These allow electricity to flow easily through them (think copper and aluminum).
3. What type of particles move to create electicity?
Electrical energy is caused by moving particles that have a negative or positive charge. These charged particles are called electrons. The faster the electrons are moving, the more electrical energy they carry. Electrical energy commonly moves through a wire in an electrical circuit.
[tex]\huge\boxed{Electrons.}[/tex]
_____________________________________Explanation...Electrons are particles that move to create electricity. In other words, they are responsible for electric currents. Thus, the answer should be Electrons.
_____________________________________[tex]\boxed{Hope\;i\;helped!}\\\\\\\huge\boxed{Thanks,Plip.}[/tex]
What is the energy of a microwave photon that has a frequency of 9.86 x 1012 Hz?
Answer:
6.533 × 10^-21J
Explanation:
The energy of the microwave photon can be calculated using:
E = hf
Where;
E = energy of photon (J)
h = Planck's constant (6.626 × 10^-34 J/s)
f = frequency (9.86 x 10^12 Hz)
Hence, E = hf
E = 6.626 × 10^-34 × 9.86 x 10^12
E = 65.33 × 10^(-34 + 12)
E = 65.33 × 10^(-22)
E = 6.533 × 10^-21J
The energy of the microwave photon is
6.533 × 10^-21J
Did the chemical reaction absorb or release energy? How do you know?
Answer:
Explanation:
All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. Endothermic reactions absorb energy, and exothermic reactions release energy. The law of conservation of energy states that matter cannot be created or destroyed.
The chemical reaction absorbs energy by comparing the energy received when bonds in the reactants are broken with the energy released when bonds in the products are formed. Exothermic is refers to chemical reactions that release the energy.
What is chemical reaction ?The term chemical reaction is defined as a process that leads to the chemical transformation of one set of chemical substances to another.
If heat is absorbed during the reaction,then the change in enthalpy is positive and if heat is released, then the change in enthalpy is negative.
All chemical reactions contain energy. But, not all chemical reactions release energy. In some chemical reactions, the energy is absorbed rather than released.
Thus, The chemical reaction absorbs energy by comparing the energy received when bonds in the reactants are broken with the energy released when bonds in the products are formed.
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I need help please and give me an explanation
Using the balanced reaction below, drag and drop the terms into the correct location to solve the following problem:
If 1.5 moles of ethanol (C2H5OH) react, how many moles of water will be formed?
2 C2H5OH + 7 O2 --> 4 CO2 + 6 H2O
Answer:
4.5 moles of H2O.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
C2H5OH + 3O2 —> 2CO2 + 3H2O
From the balanced equation above,
1 moles of C2H5OH reacted to produce 3 moles of H2O.
Finally, we shall determine the number of mole of H2O produced by the reaction of 1.5 moles of C2H5OH. This can be obtained as follow:
From the balanced equation above,
1 moles of C2H5OH reacted to produce 3 moles of H2O.
Therefore, 1.5 moles of C2H5OH will react to produce = 1.5 × 3/ 1 = 4.5 moles of H2O.
Thus, 4.5 moles of H2O will be produced.
ASAP NEED HELP, WILL MARK BRAINLEST, WHEN ASKING A QUESTION I REPEAT DO NOT ASK IT IN THE ANSWER SECTION, THANKS FOR READING. (btw: You have to draw it, then take a picture or screenshot the answer as it cannot be answered via text)
Answer:
Look at the images/files below :) Hope it helps Have a great day!
Explanation:
Answer:
Its F S E F Hope this helped :D
Water dissolves salt by the process of __ breaking down salt into ions forming a(n) __ solution which conducts electricity.
A. ionization, electrolyte
B. ionization, nonelectrolyte
C. dissociation, electrolyte
D. dissociation, nonelectrolyte
Answer:
b
Explanation:
B.................................................................
What is the percent change when an iodine atom (I) becomes an ion (I-)?
The chart shows the time, initial velocity, and final velocity of three riders.
A 4-column table with 3 rows. The first row labeled rider has entries Gabriella, Franklin, Kendall. The second row labeled time with entries 10 seconds, 8.5 seconds, 6 seconds. The third column labeled initial velocity has entries 55, 50, 53.2. The fourth column labeled final velocity has entries 32, 50, 67.
Which best describes the riders' final velocities ?
Gabriella is speeding up at the same rate that Kendall is slowing down, and Franklin is not accelerating.
Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.
Gabriella and Franklin are both slowing down, and Kendall is accelerating.
Gabriella is slowing down, and Kendall and Franklin are accelerating.
Answer:
Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.
Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating. Hence option B is correct.
What is acceleration?Acceleration is defined as the speed at which an object's velocity changes over time. The rate at which an item changes its velocity is known as acceleration, a vector quantity. If an object's velocity is changing, it is accelerating. Acceleration can be expressed as
Acceleration = Displacement / Time
Velocity is defined as the pace at which an item changes position while moving in one direction, as seen from a certain point of view and as measured by a specific unit of time. Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.
Thus, Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating. Hence option B is correct.
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The density of 25.0 g of silver is 10.5 g/cm^3. What's the density of 95.5 g of silver?
Answer:
10.5g/cm³
Explanation:
Since the density of the silver is 10.5g/cm³, any pure sample of silver will have the same value as the density of silver.
Density is the mass per unit volume of a substance.
It is an intrinsic property of matter and does not depend on the amount of matter it contains. Every unique sample of an element or substance will have the same density no matter how big or small they are. So, despite an increase in mass for the given substance, the density will still be the same.What makes metals, in particular, good conductors of electricity?
A.
the ability of electrons to flow throughout the metal
B.
the absence of charged particles
C.
the high temperatures required to break metallic bonds
D.
the presence of positive and negative ions
Answer:
the answer is A(the ability of electrons to flow through out the metal)
what element is Column 1, period 3
Answer:
Sodium (Na)
Explanation:
The element on the periodic table at Column (group) 1, period 3 is Sodium (Na)
Name the following covalent molecules:
SeF
Answer:
do you mean DeF?
Explanation:
Which accurately labels the lysosome?
W
X
Y
Z
Answer:
The correct answer is X.
Explanation:
Lysosomes are heterogeneous structures present in animal cells which are bound by single membranes. They are of varying shape and size and contains hydrolytic enzymes inside it.
Lysosomal membrane has H⁺ ATPase which pumps H⁺ into the membrane through ATP hydrolysis. This pumping of H⁺ makes the internal pH of lysosome acidic.
Lysosome contains many hydrolytic enzymes like protease, lipase, nuclease, therefore, lysosome protects the cell from pathogens by engulfing it and hydrolyze it by its hydrolytic enzymes.
The process by which substance comes from outside cell and broken down through lysosome is called heterophagy.
What is formed when two liquids are combined but do not mix?
Answer:immiscible
Explanation:
When two liquids combine to form a new liquid, we call the liquids “miscible.” When two liquids do not mix together and instead form layers, we call them “immiscible.” The chemical properties of the liquids will determine if they will mix or not.
Somebody knows a good explanation for quantic numbers in chemistry???
Answer:
No I don't.
Explanation:
LOL!!
!!! EMERGENCY PLEASE ANSWER WITHIN THE FIRST MINUTE YOU SEE THIS !!!
Give the proper name for this compound formula, O2^2-:
A.) Oxide
B.) Oxygen
C.) Oxate
D.) Peroxide
Answer:
Its tetraoxygen
Explanation:
Vinegar, CH3COOH can be used to remove limescale deposits.
Describe how vinegar can remove limescale deposits with the aid of a
balanced equation.
The reaction between acids in acetic acid in vinegar reacts with bases of calcium carbonate to form calcium acetate salts
Further explanationCalcium can form deposits on the surface of equipment in contact with water in the form of CaCO₃
vinegar which contains acetic acid can break the bonds between Calcium and Carbonate that form calcium acetate
CaCO₃ + 2CH₃COOH = Ca(CH₃COO)₂ + H₂CO₃
CaCO₃ + 2CH₃COOH = Ca(CH₃COO)₂ + H₂O + CO₂
What is different about the rotation of Uranus?
the axis is vertical
there is no axis of rotation
the axis is pointing toward the sun
Answer:
Unlike the other planets of the solar system, Uranus is tilted so far that it essentially orbits the sun on its side, with the axis of its spin nearly pointing at the star. This unusual orientation might be due to a collision with a planet-size body, or several small bodies, soon after it was formed.
Explanation:
the axis is vertical
Answer:
The axis is pointing towards the sun!!!
Explanation: