CHEMISTRY MIDDLE SCHOOL

Name three types of bodies in the solar system

Answers

Answer 1
Answer: Sun, the plants, dwarf plants. you could also say gas giants.
Answer 2
Answer: Planets,stars, moons and a lot of more bodies in the solar system

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How can you increase the amount of work done when you lift a book explain

Answers

Work done = mgh

Explanation:

  • In this case, while lifting the book we are working against the force of gravity.

Using the Newton's laws, we can find the force F required for lifting the book having mass (m) and acceleration due to gravity (g) that is ;

  • F = mg

and, the change in the position of the book that is Δx (Height)

→ Δx = Final position - Initial position

which is only the height, then the amount of work done will be calculated by :

W= mgh

  • WhereW = Work Done

m = Mass of the Body

g = Acceleration due to Gravity

h = Height of Body being displaced

1. what type of ion is chlorine ?2. what type of ion is oxygen?
3. what type of ion is
magnesium?
4. what type of ion is silicone?
5. what type of ion is carbonate?
6. what type of ion is nitrate?​

Answers

Answer:

1. Univalent negative ion (Cl-)

2. Divalent negative ion (O2-)

3. Divalent positive ion (Mg2+)

4. Divalent negative ion (S2-)

5. Divalent negative ion (CO3)^2-

6. Univalent negative ion (NO3) ^-
1 . It is formed when the element chlorine (a halogen) gains an electron or when a compound such as hydrogen chloride is dissolved in water or other polar solvents.

A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the cone?V equals four-thirds times pi times r cubed
V equals one-third times pi times r squared times h
V = s3
V = πr2h

Answers

Answer: Option 1 --- V equals four-thirds times pi times r cubed

Explanation:
Letter
Using your research and data, you will write a three-paragraph letter to the park ranger detailing your findings.
Be sure to include the following in your letter:
• How is the Burmese python impacting the Everglades ecosystem?
• Why is it important to control the Burmese python population in Everglades
National Park?
• Based on your research, what method of controlling the python population do you believe would be most effective? Create a plan based on your chosen method.

An ionic compound is formed when there is a reaction between the elementsa) strontium and chlorine
b)hydrogen and chlorine
c)nitrogen and oxygen
d)sulfur and oxygen

Answers

Ionic compounds are formed between a metal and non-metal. An ionic compound can be formed between strontium and chlorine and the compound is called strontium chloride.

What is ionic compound?

Ionic compounds are formed by losing an electron from an electropositive element to an electronegative element. Thus between a metal and non-metal.

Ionic bonds are the strongest bond and it creates partial charges in the compound since the bonded electrons are attractively pulled towards the more electronegative element in the bond and thus the metal ions gets a positive charge and nonmetal gets a negative charge.

Covalent bonds are formed by sharing electrons between two nonmetals. Hydrogen and chlorine forms the covalent compound HCl. Similarly, nitrogen and oxygen always forms covalent bonds.

Sulfur and oxygen are comparable in electronegativities and thus forms a covalent bond. Therefore, the elements which forms an ionic compound are strontium and chlorine forming strontium chloride. Hence, option A is correct.

To find more about ionic compounds, refer the link below:

brainly.com/question/17217225

#SPJ5

Answer:

strontium and chlorine

Explanation:

The process of making mRNA from DNA is called *​

Answers

Answer:

Transcription

Explanation:

Define herbivore, carnivore, omnivore, and scavenger.

Answers

Herbivore-An animal that only eats plants

Carnivore-An animal that only eats meat

Omnivore-An animal or person that eats both meat and plants

Scavenger-An animal that feeds on carrion or dead animals
A animal or human that only eats plants

A animal or human that only eats meat

A animal or human that eats plants and meat

A animal that only eats dead things
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Name and Title:Include your name, instructor's name, date, and name of lab.Objectives(s):In your own words, what is the purpose of this lab?Hypothesis:In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.Procedure:The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.Data:Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.Hydrogen Helium Lithium Sodium Carbon NitrogenMoon One Moon Two Planet One Planet Two Conclusion:Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.Using two to three sentences, summarize what you investigated and observed in this lab.Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars? Why might it be useful to determine the elements that a planet or moon is made up of?
Aqueous solutions of chromium(III) iodide and potassium hydroxide react to give a chromium(III) hydroxide precipitate and aqueous potassium iodide.Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if there is no reaction.
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