If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon? A. 4,880.4 N B. 135.6 N C. 813.4 N D. 318.5 N

Answers

Answer 1

Answer: 1/6 of the weight on earth or 20 kgs

Answer 2

Answer: 814.4 N is the answer

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Because water in the desert does not flow to the ocean ____________________form Select one:a. rillsb. drumlinsc. alluvian fans d. kettle lakes

After taking a hot shower you may notice that the room gets steamy and the mirror is foggy you might also notice that there is moisture on the walls use these observations to come up with one reason why the temperature of the bathroom increases when you take a hot shower

Answers

Answer:the temperature might increase because of the humidity in the room so everything gets goofy and moist

Explanation:

How can the use of biotechnology lead to the increase in soil practices

Answers

Biotechnology is the use of biological processes for industrial use. This is especially used in the manipulation of microorganisms for producing antibiotics, hormones and other products. Today, biotechnology has been the center of research and development. Using this for developing soil practices will surely help people and will have a great impact. Through biotechnology, we can increase soil health and the nutritive value of the soil for plants.

Answer:

A) Biotechnology use can lead to a decrease in pesticide and herbicide use, maintaining soil quality.

Explanation:

just took test on edge

Which substance cannot be broken down by a chemical change?(1) ammonia (2) mercury (3) propane (4) water

Answers

The substance that cannot be broken down by chemical change is $\boxed{\left( 2 \right){\text{ mercury}}}$ .

Further Explanation:

Substance is the pure form of matter while a combination of atoms or molecules is termed as mixture.

Types of substances:

1. Element

The simplest form of substance that cannot be further decomposed by any chemical means is called an element. Carbon, sulfur, and cobalt are some of the examples of elements.

2. Compound

When two or more different elements are held together by chemical methods, compounds are formed. These can further be decomposed into their corresponding constituents. The properties of compounds are very different from those of their constituent elements. NaCl, ${\text{C}}{{\text{H}}_{\text{4}}}$ and ${{\text{H}}_{\text{2}}}{\text{O}}$ are examples of compounds.

(1) Ammonia is composed of one nitrogen and three hydrogen atoms so it is a compound. Therefore it can be broken down by chemical change.

(2) Mercury is an element so it is the simplest form in which it can exist. Therefore it cannot be broken down by chemical change.

(3) Propane is composed of three carbon and eight hydrogen atoms so it a compound. Therefore it can be broken down by chemical change.

(4) Water is composed of one oxygen and two hydrogen atoms so it is a compound. Therefore it can be broken down by chemical change.

Learn more:

Which sample is a pure substance? brainly.com/question/2227438
Which must be a mixture of substances? brainly.com/question/637791

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Elements, compounds, and mixtures

Keywords: substance, mercury, propane, water, ammonia, element, compound, chemical change, decomposed, simplest form, NaCl, CH4, carbon, sulfur, cobalt.

The substance which cannot be broken down by a chemical change is mercury as it is an element, hence option 2 is correct.

It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.

Thus, option 2 which is mercury is correct as it is an element.

Learn more about element,here:

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what is the total number of joules released when a 5.00 gram sample of water changes from liquid to solid at 0°C ?

Answers

The heat associated with a change of physical state of a system is: $Q = m\cdot l$ (being "l" the latent heat of state change).

$Q = 5\ g\cdot 334(J)/(g) = \bf 1,67\cdot 10^(3)\ J$

Determine the mass 2 mol Li??

Answers

You can look on the periodic table for the number of automic mass units in each element.

1 mole Li = 6.94 amu
6.94 • 2 = 13.9 amu

There are 13.9 amu in 2 moles of Li

Molar mass Li = 6.94 g/mol

1 mol --------- 6.94 g
2 mol --------- ?

Mass Li = 2 * 6.94 / 1

Mass Li = 13.88 g

hope this helps!

Name the structure. CHC H.CH2CH2i CHC CH3 A) 7-chloro-3-ethyl-4-methyl-3-heptene
B) 1-chloro-5-ethyl-4-methyl-3-heptene x
C) 1-chloro-3-pentenyl-2-pentene x
D) cis-7-chloro-3-ethyl-4-methyl-3-heptene
E) trans-7-chloro-3-ethyl-4-methyl-3-heptene

Answers

The question is incomplete. The complete question is attached below.

Answer : The correct option is, (A) 7-chloro-3-ethyl-4-methyl-3-heptene

Explanation :

The rules for naming of alkene are :

First select the longest possible carbon chain.

The longest possible carbon chain should include the carbons of double bonds.

The naming of alkene by adding the suffix -ene.

The numbering is done in such a way that first carbon of double bond gets the lowest number.

The carbon atoms of the double bond get the preference over the other substituents present in the parent chain.

If two or more similar alkyl groups are present in a compound, the words di-, tri-, tetra- and so on are used to specify the number of times of the alkyl groups in the chain.

The given compound name will be, 7-chloro-3-ethyl-4-methyl-3-heptene.

The structure of given compound is shown below.

Final answer:

The structure given can be named as trans-7-chloro-3-ethyl-4-methyl-3-heptene.

Explanation:

The structure given can be named as trans-7-chloro-3-ethyl-4-methyl-3-heptene. The name is determined by identifying the longest carbon chain, the substituents attached to it, and their positions. In this case, the longest carbon chain has 7 carbons, with a chlorine atom attached at position 7. There is an ethyl group at position 3 and a methyl group at position 4. The presence of double bonds is indicated by the -ene ending.

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