Please Help ASAP Students set up a controlled experimernt. They put five
crickets in each of three identical containers. They set one
container to 15C, one to 20°C, and one to 25°C. Then they
count the number of cricket chirps in each container during
1 hour. What are the two constants in this experiment? You have to pick to answers.

A: The number of crickets in each container.

B: The temperature of each container.

C: The number of cricket chirps.

D: The kind of containers used.

Answers

Answer 1

Answer: A

Explanation:in learned this last year:)

Answer 2

A: The number of crickets in each container. and

C: The number of cricket chirps.

are possibly the right answers


Related Questions

Help please! What is the number that can balance the equation KClO3 → 2KCl + 3O2?

Answers

Answer:

2KClO3 → 2KCl + 3O2 is balanced equation

Explanation:

Convert 48.5 grams of water to moles of water

Answers

Answer:

2.70 mol of water.

Explanation:

divide the given mass by the molar mass of water. 48.5 / 18.016g = 2.70 mol water.

Assignment Summary For this assignment, you will construct a scientific model of the water cycle to show how water is recycled through an ecosystem. Once you have drawn your model on a poster board, you will write one to two paragraphs explaining how water is transferred within and between organisms and the environment. Background Information Water is a very important compound. Organisms need water to carry out life-maintaining processes such as growth and development. Without water, living things will not survive. Water continually flows among the atmosphere, land, water, and living organisms. This process, called the water cycle, allows water to be recycled as it moves through Earth’s spheres. Materials Assignment Instructions Step 1: For this project, you are expected to submit the following: 1. Your model of the water cycle 2. One to two typewritten paragraphs describing the water cycle Step 2: Prepare for the project. a) Read through the guide before you begin so you know the expectations of this project. Pay particular attention to the instructions you need to follow to create a model on your poster board. b) If anything is not clear to you, be sure to ask your teacher. Step 3: Gather materials for the model. a) Start with a blank poster board. Be sure to put your name on it. b) You may either draw the parts of the water cycle or print images to construct a model on your poster board. Gather any drawing tools that you will need, or print any images you want to use. Step 4: Create a model of the water cycle. a) Your model should include bodies of water such as lakes and oceans, organisms, air, and land. b) Draw arrows indicating how water moves within an ecosystem and between organisms and their environment. Be sure to include the Sun and gravity in your model. c) Include short phrases on your poster that summarize what occurs at each stage of the water cycle.  Large poster board  Markers, crayons, or colored pencils  Scissors  Glue or tape Student Guide (continued) Step 5: Write a paragraph describing the water cycle. a) Type one to two paragraphs describing the full water cycle. Be sure to use full sentences and proper grammar.

Answers

Answer:

the water cycle is a system that goes through evaporation then the water goes into the clouds and rains down as preparation

Explanation:

thats the cycle but if I were u I would do more Reasearch

How does the ionosphere help radio transmission?

Answers

Due to the ability of ionized atmospheric gases to refract high frequency (HF, or shortwave) radio waves, the ionosphere can reflect radio waves directed into the sky back toward the Earth. Radio waves directed at an angle into the sky can return to Earth beyond the horizon.


I hope this helps !

Explanation:

 ionosphere can reflect radio waves directed into the sky back toward the Earth

Calculate the number of milliliters of 0.440 M KOH required to precipitate all of the Fe2+ ions in 187 mL of 0.692 M FeSO4 solution as Fe(OH)2. The equation for the reaction is: FeSO4(aq) + 2KOH(aq) Fe(OH)2(s) + K2SO4(aq)

Answers

Answer:

588.2 mL

Explanation:

FeSO₄(aq) + 2KOH(aq) → Fe(OH)₂(s) + K₂SO₄(aq)

First we calculate how many Fe⁺² moles reacted, using the given concentration and volume of FeSO₄ solution (the number of FeSO₄ moles is equal to the number of Fe⁺² moles):

moles = molarity * volume187 mL * 0.692 M = 129.404 mmol Fe⁺²

Then we convert Fe⁺² moles to KOH moles, using the stoichiometric ratios:

129.404 mmol Fe⁺² * [tex]\frac{2mmolKOH}{1mmolFeSO_4}[/tex] = 258.808 mmol KOH

Finally we calculate the required volume of KOH solution, using the given concentration and the calculated moles:

volume = moles / molarity258.808 mmol KOH / 0.440 M = 588.2 mL

5. An anion of carbon C-4 has how many electrons?
a. 6
b. 8
C. 9
d. 10

Answers

Answer:

A.6

Explanation:

An atom of carbon can share four electrons. Carbon has a total of six electrons, with two in the first orbital and four in the second orbital.

Which of the following is an example of a chemical change?

a. freezing water to make ice.
b. a firework exploding.
c. breaking a glass bottle.
d. melting gold jewelry to make a gold bar.​

Answers

Answer:

b. a firework exploding

Explanation:

A roller coaster is accelerating at 10m/s² before it comes to an abrupt stop at the end of the ride. The mass of the roller coaster is 900 kg. How much force was exerted on the roller coaster to bring it to a stop?

Answers

Answer:

9000 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 900 × 10

We have the final answer as

9000 N

Hope this helps you

I GIVE BRAINLIEST IF YOU ANSWER!

Which of these is a characteristic of warm air? (5 points)

a It transfers energy through radiation.

b Its molecules are far apart.

c It sinks due to convection.

d It cools the land below i

Answers

Answer:

B.

Explanation:

The air molecules of warm air has higher energy. It causes them to move away from each other

Which organelle captures sunlight and helps in food synthesis?

Answers

Answer:

Chloroplasts! :)

Explanation:

Hope this helps

Answer:
Chloroplast

Explanation:
Chloroplasts capture the energy in sunlight and use it to synthesize energy-rich carbohydrates. This food made by chloroplasts provides the chemical energy needed by all forms of life. Mitochondria help cells to extract the energy in food molecules efficiently to power cellular activities.

Which element has an electron configuration that ends in the fourth energy 1 point
level? *
D
ОО
C

Answers

Answer:

here

Explanation:

which is the halogen that is in Period 5? a. iodine (I) b. strontium (Sr) ... 4. Which is a transition element with five d-block electrons in energy level 4? ... Which region contains elements with an electron configuration that ends with p3? a. A b.

Missing: point ‎| Must include: point

What is specific heat? How are the factors affecting it?

Answers

Answer : “Amount of heat needed to raise the temperature of 1 kg of a material by 1 c or k.”

Equation used to solve: Q=mc^T

- Change in temp
- Mass of the system
- Subtance and phase of substance

Answer:

Specific heat, ratio of the quantity of heat required to raise the temperature of a body one degree to that required to raise the temperature of an equal mass of water one degree.

Explanation:

by dividing the heat capacity by the quantity of substance in a body, the resulting specific heat capacity is a function of the structure of the substance itself. In particular, it depends on the number of degrees of freedom that are available to the particles in the substance, each of which type of freedom allows substance particles to store thermal energy.

Which statement about the alkali metals is correct?
A. They are usually gases.
B. They are extremely unreactive.
C. They are located in the left-most column of The Periodic Table
D. They form negative ions with a -1 charge

Answers

Answer:

its c they are located in the left most column of the periodic table

The atmosphere insulates the planet by trapping in

Answers

heat

resources: my brain :)

Which of the following redox conditions will produce a spontaneous reaction?

A. The voltage of the reduction half-reaction is negative.
B. The voltage of the reduction half-reaction is positive.
C. The sum of the voltages of the half-reactions is negative.
D. The sum of the voltages of the half-reactions is positive. ​

Answers

Answer:

D. The sum of the voltages of the half reactions is positive.

Explanation:

It's correct on apeex

The statement, that describes the redox conditions will produce a spontaneous reaction is "the sum of the voltages of the half-reactions is positive."

What is spontaneous reaction?

A spontaneous reaction is one that favors the creation of products under the conditions of the reaction. It can move in a specific direction without being propelled by an external source of energy. If the standard electrode potential for the redox reaction is positive, the reaction is spontaneous.

If [tex]E^{0}[/tex] (redox reaction) is positive, the reaction will move onward (spontaneous). The redox conditions will cause a spontaneous reaction, and the sum of the half-reaction voltages is positive. Hence the correct option is D.

Learn more about spontaneous reaction here

https://brainly.com/question/13790391

#SPJ2

On hot days, you may have noticed that potato chip bags seem to “inflate”, even though they have not been opened. If I have a 250 mL bag at a temperature of 19 0C, and I leave it in my car which has a temperature of 600 C, what will the new volume of the bag be? will give brainliest

Answers

The new volume of the bag : 747.43 ml

Further explanation

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]

V₁=250 ml

T₁=19+273=292 K

T₂=600+273=873 K

[tex]\tt V_2=\dfrac{V_1.T_2}{T_1}\\\\V_2=\dfrac{250\times 873}{292}\\\\V_2=747.43~ml[/tex]

Write a essay on endangered animals


A: Inquiring and analysing

i. explain and justify the need for a solution to a problem

ii. state and prioritize the main points of research needed to develop a solution to the problem

iii. describe the main features of an existing product that inspires a solution to the problem

iv. present the main findings of relevant research

B: Developing ideas

i. develop a list of success criteria for the solution

ii. present feasible design ideas, which can be correctly interpreted by others

iii. present the chosen design

C: Creating the solution

i. outline a plan, which considers the use of resources and time, sufficient for peers to be able to follow to create the solution

ii. demonstrate excellent technical skills when making the solution

iii. follow the plan to create the solution, which functions as intended

iv. list the changes made to the chosen design and plan when making the solution

D: Evaluating


i. outline simple, relevant testing methods, which generate data, to measure the success of the solution

ii. outline the success of the solution against the design specification

iii. outline how the solution could be improved

iv. outline the impact of the solution on the client/target audience

I WILL IDMEADIITLY MARK U AS BRAINLIESTTT

Answers

Answer:

WHATS OOP Lucy???

What Phase is water at 120 degrees Celsius?

Answers

At atmospheric pressure water boils at 100 degC.
So the water would be gas/vapor/steam.


How many significant digits would you report an answer to if you divided 2.654 by 3.2?

answer choices
1
2
3
4

Answers

Answer:1

Explanation:

any help would be much appreciated, i'm being timed :( i'll mark brainliest and 5 star

Answers

Answer:

GROUP 16

Explanation:

Answer:

group 2

Explanation:

50 POINTS?!!!!!!

In the Periodic Table, the vertical columns that extend down the Periodic Table are called
A. periods.
B. Groups.
C: Classes
D: Rows

Answers

Answer:

b

Explanation:

which group of mamaals has the most mebers

Answers

Infraclass: Placentals

Placental mammals are the most diverse group of mammals with about 4000 discovered species.

What is true about matter in a chemical reaction? *
None of these statements are true.
Matter can be created or destroyed.
Matter can sometimes be created or destroyed.
Matter cannot be created or destroyed.

Answers

Answer:

the last option,matter cannot be created or destroyed

1. Which of the following is Newton's First Law? *

A-An object in motion will stay in motion unless acted on by a balanced force.

B-An object at rest will stay at rest and an object in motion will stay in motion in the same speed and same direction unless acted on by an unbalanced force.

C-Moving objects will stay in motion forever

Answers

Answer:

B .............

hope it helps

Answer: B

Explanation:

A mixture consists of 28% oxygen, 14% hydrogen, and 58% nitrogen by volume. A sample of this mixture has a pressure of 4.0 atm in a 9.6 L container at 300 K temperature. This mixture is run through a gas filter, which removes the hydrogen from this system. The gas is placed back into the 9.6 L container. How many moles of gas are left in the container? A) 4.2 mol B) 2.6 mol C) 1.3 mol D) 3.9 mol

Answers

Answer:

C) 1.3 mol

Explanation:

Using gas law we can find the initial moles of the sample of the mixture, as follows:

PV = nRT

PV / RT = n

Where P is pressure: 4.0atm

V is volume: 9.6L

R is gas constant: 0.082atmL/molK

T is absolute temperature: 300K

And n are moles of the gas

PV / RT = n

4.0atm*9.6L / 0.082atmL/molK300K = n

n = 1.56moles of the mixture of the gas are present into the 9.6L container

Now, 14% of this gas is hydrogen that was removed of the system, that is:

1.56mol*14% = 0.22 moles of hydrogen are removed.

Thus, moles of gas that remains in the container are:

1.56mol - 0.22mol = 1.34mol.

Right answer is:

C) 1.3 mol

Answer:

C = 1.3

Explanation:

I just took the exam and got it right.

How do I balance these?

Answers

Answer:

[tex]1S_{8} +12O_{2}=8SO_{3}[/tex]

[tex]2Al+6HCl=2AlCl_{3} +3H_{2}[/tex]

[tex]2Fe+3Cl_{2}=2FeCl_{3}[/tex]

[tex]2K+1Cl_{2}=2KCl[/tex]

Explanation:

ANSWER ASAP!
How does a combustion reaction form?

Answers

A combustion reaction is when a fuel, usually a hydrocarbon, reacts with excess oxygen to form carbon dioxide gas and water vapor.
A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 as one reactant. The combustion of hydrogen gas produces water vapor.

Which energy transformation produces electricity and is least likely to negatively impact the environment?

A) Generating electricity from a natural gas-fired power plant
B) Generating electricity from a coal-fired power plant
C) Generating electricity from a nuclear power plant
D) Generating electricity from a solar panel system

Answers

Hello!

The answer to this question is: D) Generating electricity from a solar panel system.

Thank you for asking this question!

It would be greatly appreciated if you thanked me and marked me as the brainliest!

Have an amazing day.

The energy transformation which produces electricity and is least likely to

negatively impact the environment is generating electricity from a solar

panel system.

Generating electricity from solar panel involves the use of solar energy from

the sun to generate electricity . This type of energy doesn't emit any type of

harmful radiation or release toxic compounds into the atmosphere which

makes it the least likely to negatively impact the environment.

Other options emit any type of harmful radiation or release toxic compounds

into the atmosphere which makes option D the most appropriate.

Read more on https://brainly.com/question/11867576

Weathering, erosion, and deposition act together in a cycle that wears down
and builds up Earth's surface. true or false???

Answers

Answer:

The answer is true. Hope this helps

The answer is true
Hope this helped

Convert 2.5x10^6mm to km

Answers

Answer:

2.5 kilometers

Explanation:

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