Answers
Answer:
A
Explanation:
the sun gives energy to the grass to grow then the animal eats the grass and gets the energy and then the decomposer or mushroom will break it down for food.
Related Questions
This model shows a single unit of a compound containing several elements what is the chemical formula for the substance
Answers
Explanation:
First Question
- The correct chemical formular is ; Al2(SO4)3
Second question
The following applies;
- The mass of the products is the same as the mass of the reactants
- At least one new product formed is a gas
- Molecules are changing into different molecules
Third Question
- Zn + HCl → ZnCl2 + H2
Fourth Question
- The atoms in the original substances regroup and form a different substance
- Matter is conserved
- The same atoms are present before and after the reaction
Most hot air balloons are round. Yes, you can have some other shapes like this one, but its shape is still rounded. Using the assumptions, explain why a square hot air balloon would be hard to make.
Answers
A square hot air balloon would be hard to make because the round shape of traditional hot air balloons allows for even distribution of heat, which is necessary to maintain the balloon's lift and stability.
What is a hot air balloon ?A hot air balloon is a balloon filled a heated air which can rise above the atmosphere. In a round balloon, the heat from the burner is evenly distributed around the circumference of the balloon, causing the air inside to heat up and rise, which in turn causes the balloon to lift.
If a hot air balloon were to be made in a square shape, the heat would be distributed unevenly and concentrated in certain areas. This could cause the balloon to become unstable, as the hot air would rise in some areas but not others, leading to uneven lifting and potential loss of control.
Additionally, the corners of the square shape would be more susceptible to damage and could create weak points in the structure of the balloon.
Therefore, while it is possible to create hot air balloons in other shapes, the traditional round shape has been found to be the most effective and efficient for maintaining the necessary heat distribution and stability required for safe and successful flight.
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PLEASE HELPPP AND THANK YOUUUU
Answers
Describe an experiment that can be done to prove the law of conservation of mass?
Answers
Explanation:
Given alka - seltzer and a flash, students design and conduct an experiment to prove the law of conservation of mass.Which fossil fuel is causing the most pollution? PLEASE HELP TIS ASSIGNMENT IS PAST DUE I NEED HELP
Answers
Answer:
Coal is the fossil fuel causing the most pollution.
Explanation:
I hope this helps.
Which of the following is similar in size to an atom?
A ball used in sports, such as a basketball
A large building, similar to a shopping mall
A particle you cannot see with your eyes
A seed of a fruit from an apple or orange
Which of the following is similar in size to an atom?
A ball used in sports, such as a basketball
A large building, similar to a shopping mall
A particle you cannot see with your eyes
A seed of a fruit from an apple or orange
Answers
Answer:
A particle you cannot see with your eyes
Explanation:
An atom is the smallest indivisible particle of an element. It is the particle that determines the chemical properties of an element. However, an atom is a very small-sized particle, of about 10^-10m.
Based on how small a particle is, it cannot be seen with the naked eyes and hence, requires that one uses a microscope to view it.
In which object does chemical energy most likely transform into electrical energy?
Answers
In an ideal situation where no heat energy is produced, what is the relationship between the chemical energy provided by the battery and the electrical energy produced according to the Law of Conservation of Energy?
A. The chemical energy should be more than the electrical energy.
B. None of the above
C. The chemical energy should be equal to the electrical energy.
D. The chemical energy should be less than the electrical energy.
Answers
Answer: im going to say it is b
Explanation:
This type of cloud are high feathery clouds made of ice crystals...
A cirrus
B nimbus
C cumulus
D stratus
Answers
Answer:
the answer is a because cirrus clouds have that definition
Which of the following best explains
why ionic bonds form between ions?
A. Ions with opposite charges
are attracted to one another.
B. lons tightly bond together because
they have identical physical structures.
C. Positive ions attract other positive ions.
D. Negative ions attract
other negative ions.
Answers
Explanation:
B has a correct statement
What happens to the rate constant as activation energy increases?
Answers
Write about a time that you were really confused in Science class. What did you do? Who did you get help from? How did you explain what was confusing you?
Answers
when I was really confused in science class and I think a lot but not found in book then I get help from my friend but he also don't know that and then finally my teacher solves it the question was what makes a rainbow .
How many protons are in Calcium - 41?
Answers
Answer:
the correct answer to your question is 20
nomenclature of calcium chloride
Answers
Answer:
CHEBI:3312 - calcium dichloride
Explanation:
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2.
Answer:
CHEBI:3312 - Calcium dichloride
Use the model provided to select ALL of the examples of mixtures.
A) iced tea
B) salt water
C) table sugar
D) orange juice
E) aluminum oxide
Answers
Answer:
Explanation:
Ice tea
Salt water
Orange juice
You stir your hot cocoa with a silver spoon that has a mass of 0.032 kg. The spoon’s temperature increases from 20 K to 60 K. What is the change in the spoon’s thermal energy? (Hint: Use the table in Figure 6 to find the specific heat of silver.) SHOW YOUR WORK.
Formula:
Answer:
help!!!!!!
Answers
Answer:
A
Explanation:
A
How is hess's law applied in calculating enthalpy
Answers
Answer: To develop a strategy for the order in which you add the various equations.
Explanation:
In a Hess’s Law problem, you have to develop a strategy for the order in which you add the various equations. hope this helps <3
The statement, that describes Hess's law applied in calculating enthalpy is "all the reactions in a path are added together."
What is Hess' law?Hess' law of continuous heat summation, abbreviated as Hess' law. Hess' law says that the rise in enthalpy, or reaction heat at constant pressure, in a chemical reaction is independent of the process between the starting and final states.
According to Hess's Law, the enthalpy change for a chemical reaction is independent of the route travelled. This indicates that the overall enthalpy change will be the same regardless of how many steps are completed. Because enthalpy is a state function, we can calculate the overall change in enthalpy by simply adding the changes at each step along the way until the product is obtained All processes must take place at the same temperature, and the equations for each step must balance.
In a Hess's Law problem, you must devise a technique for adding the numerous equations in the correct order.
Hence the correct answer is B.
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3
What is compression?
A
When alr molecules move apart from one another.
B
When alr molecules collide with one another.
C
When alr molecules become packed tightly together.
D
When alr molecules move around freely.
Answers
A scuba diver swims deeper and deeper into the ocean. What happens to the nitrogen in her blood as she goes deeper
Answers
Answer:
it compresses under the pressure.
Explanation:
when she comes up, it will re-expand as pressure goes down- this is why they have to be very careful how fast they come back up.
Answer:
If a diver goes through too great of pressure change too quickly, their body cannot eliminate all of the expanding nitrogen and the excess nitrogen forms bubbles in their tissues and blood. These nitrogen bubbles can cause decompression sickness (DCS) by blocking blood flow to various parts of the body, causing strokes, paralysis, and other life-threatening problems.
2NO(g) + O2 → 2NO2
In one experiment, 1.866 mol of NO is mixed with 4.503 mol of O2.
a)Determine the limiting reagent
b) Calculate the number of moles of NO2 produced.
Answers
Answer:
a)NO has smaller moles
b)1.866
See photo below
chemistry help please!!
Answers
Answer:
no so boring........................
if you mix the two liquids, propanol and vegetable oil, are they miscible or immiscible?
Answers
Answer:
it would be immiscible
Explanation:
They would not mix similar to oil and water
The answer is true
hope this helps :)
Plz help me !!!!!!!!!!!!!!!!!!!
Answers
Answer:
K3N
Explanation:
writing formulas from valency
the valency of potassium is 1
the valency of nitrogen is 3
that will be
K. N
1. 3
cross multiply
that will be
K3N
In a reaction, the theoretical yield was 80 g, but the actual yield was 60 g. What was the percentage yield?
Answers
Answer:
75%
Explanation:
percent yield is the actual yield divided by the theoretical (predicted) yield, then multiplied by 100 to get a percentage.
60/80 = 0.75
0.75 x 100 = 75%
Answer:
33.34 %
Explanation:
Given that,
Actual yield = 60 g
Theoretical yield = 80 g
We need to find the percentage yield. It can be calculated as follows :
[tex]\%=\dfrac{Acutal-theoretical }{Actual}\times 100\\\\=\dfrac{60-80}{60}\times 100\\\\=33.34\%[/tex]
So, the required percentage yield is 33.34 %.
A 2.0 L bag of potato chips in Denver is that 15 C0 print 82 ATM. The same bag is brought to the top of long peaks in the cold winter day. If the back and only spent 2.5 L before exploding and along peak has a temperature of negative 5C and a pressure of 0.45 ATM for the bag explode
Answers
Answer:
hello your question is poorly written below is the complete well written question
.A 2.0 L bag of potato chips in Denver is at 15oC and 0.82 atm. The same bag is brought to the top of Longs Peak on a cold winter day. If the bag can only expand to 2.5 L before exploding and Longs Peak has a temperature of -5oC and a pressure of 0.45atm, will the bag explode? Use the combined gas law to prove this to yourself
answer : The bag will explode
Explanation:
Given data :
Volume of bag ( v1 ) = 2 liters
Initial pressure ( p1 ) = 0.82 atm
Initial temp ( T1 ) = 15 + 273 = 288 k
Final Pressure on long peak (P2) = 0.45 atm
Final temp on Long peak (T2) = (273 - 5 ) K = 268 K
Determine the Final volume in long peak to know if the bag will explode
applying the gas laws
P1v1 / T1 = P2V2 / T2
V2 = p1*v1*T2 / p2 *T1
V2 = ( 0.82 * 2 * 268 ) / ( 0.45 * 288 )
= 3.39 Liters
since final volume ( V2 ) > ( v1 ) the bag will explode
When is Africa's Serengeti plains herbivores migrate across this area following pls pls help me out
Answers
2. How will damage to the adrenal medulla affect the individual? Select the best prediction(s).
A. Blood glucose will decrease
B. Blood glucose will increase
C. Respiration rate will decrease
D. Respiration rate will increase
E. Blood pressure will decrease
F. Appetite will increase
Answers
Answer:
F,A
Explanation:
Explain the law of conservation of mass and give an example that demonstrates it.
Answers
Answer:
Mass Cannot be created or destroyed. So everything that goes into a chemical reaction has to come out the other side, like cars driving into a tunnel. Any balanced equation of a chemical reaction is an example
26. Which compound, chloroacetic acid or iodoacetic
acid, most likely has the lower boiling point, and
why?
(A) Chloroacetic acid, because the London
dispersion forces among its molecules are
weaker
(B) Chloroacetic acid, because the dipole-dipole
forces among its molecules are weaker.
(C) Iodoacetic acid, because the London
dispersion forces among its molecules are
stronger.
(D) Iodoacetic acid, because the dipole-dipole
forces among its molecules are stronger.
Answers
Give brainlest
The london dispersion forces are stonger in iodoacetic acid than chloroacetic acid making chloroacetic acid to have a lower boiling point.
What are london dispersion forces?The London forces are forces are intermolecular forces that act on compounds depending on the size of the molecule.
We must note that iodoacetic acid is a larger molecule than chloroacetic acid hence the london dispersion forces are stonger in iodoacetic acid than chloroacetic acid making chloroacetic acid to have a lower boiling point.
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Surface tension _____. A. Causes beads of water to spread out B. May be increased by detergents C. Is an inward force that tends to minimize the surface area of a liquid D. Is decreased by hydrogen bonding
Answers
Answer:
C. Is an inward force that tends to minimize the surface area of a liquid
Explanation:
Surface tension is a skin-like proper of water that is explained by its property or ability to form hydrogen bonds. The water molecule has the ability to bind the molecules from all sides that surrounds it. The force of action on each of the molecules is balanced. The surface tension is a more inward phenomenon and it holds the droplet in a spherical shape.