How many moles are in 15 grams of Lithium?
2.16 grams
104.1 moles
2.16 moles
104.1 grams

Answers

Answer 1
There are 2.16 moles of lithium in 15 grams. Look at the periodic table to find the molar mass.

Related Questions

which of the following statements best explains why plants wilt​

Answers

Answer:

needs more context bro

Plants wilt due to lack of water. Dehydration of the plant will cause it to collapse. They also wilt sometimes to prevent damage from high temperatures and the sun. Hope this helps.

Difference between direct and indirect effect

Answers

Direct effects, as the name suggests, while not manipulated or communicated by a third party, deal with the direct influence of one entity on another. Indirect effects can be described as the influence, mediated or passed on by a third, of one organism or species on another.

Which characteristics or structures from the list are found in plant cells? Select all that apply.

nucleus
chloroplast
irregular shape
cell wall
tiny storage vacuoles
cell membrane
Plz help :X

Answers

Answer:

nucleus,chloroplast,cell wall, cell membrane

Explanation:

10. Which molecule is critical to the body’s ability to absorb oxygen into the blood and distribute it effectively? A muscular B starch C chlorophyll D hemoglobin

Answers

Answer:

Hemoglobina  

Explanation:

Which of the following can occur because of the exchange of homologous chromosome parts during the process of meiosis?

Answers

Answer:

Muttation can occur during the exchange of genetic meterial from homologous chromosomes which may led to cause deseases in some cases.

Explanation:

Homologous chromosomes exchange genetic material during the process of meiosis.

What is Meiosis?

Meiosis is a type of cell division in which germ cells present in the sexually-reproducing organisms produces the gametes, such as sperm or egg cells. It involves two rounds of division which results in four cells with only one copy of each chromosome.

These four cells are haploid in nature. Meiosis produces the sex cells or gametes like eggs in females and sperm in males.

Meiosis is divided into nine stages. These are divided between the first time the cell divides (meiosis I) and the second time it divides (meiosis II).

Thus, homologous chromosomes exchange genetic material during the process of meiosis.

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Would you design cars with different masses or equal masses? Would you design your cars with high speeds or low speeds? Use Newton's Laws of motion to support your response.

Answers

Answer:

You can actually apply the same concept, obviusly you want the cars to be the same weight, and you want your cars to be not too fast, because of the same equation F=MA if the car is faster, is because it has higher acceleration, wich results in higher impact force.

Explanation:

Which of the following is not the wave of the future in the medical field?
O robots
O cameras
O computers
O engines

Please help!!!!!!

Answers

I think it’s engines
I believe the answer is D

Why might a company decide against using hydroelectric Energy as an alternative energy source

A. Gathering it requires pulling from unclean sources

B. Gathering it creates noise pollution for surrounding areas

C. Gathering it releases carbon dioxide gases into the air

D. Gathering it can have a negative affect on natural habitats

Answers

The company's decision against using hydroelectric Energy as an alternative energy source might be Gathering it can have a negative affect on natural habitats.

Why is hydroelectric power not a good energy source?

Hydropower can also cause environmental and social problems. Waterholes drastically change the landscape and rivers they are built on. Dams and reservoirs can decrease river flows, raise the water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.

Thus, the correct option is "D".

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What kingdom do the amoeba and paramecium belong?

Answers

Answer:

Protista

Explanation:

Both belong in the protista kingdom

How are some protists like plants

Answers

Answer:

Plant-like protists are autotrophs. This means that they produce their own food. They perform photosynthesis to produce sugar by using carbon dioxide and water, and the energy from sunlight, just like plants. ... Protists can be unicellular (single-celled) or multicellular (many-celled).

Explanation:

I took the same test on this

Explain why reintroducing wolves changed the ecosystem of the park?
WILL GIVE BRAINLIEST

Answers

Answer:

After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... The healthier bear population then killed more elk, contributing to the cycle the wolves started.

Explanation:

The reintroduction of wolves had several positive effects on the ecosystem.

What are the effects of reintroduction of wolves?

The reintroduction of wolves caused a trophic cascade of events in the Yellowstone national park. This resulted in an increase in the population of beavers and also brought back several forms of vegetation.

The killing of wolves in the 1930s resulted in the shifting of predatory pressure on the elk population. But, they were much less active in winter. They browsed on cottonwood plants and aspen.

But now, the predatory pressure came back on wolves. This keeps the elks more active. This also resulted in an increase in vegetation.

The reintroduction of wolves also resulted in the increase in the population of beavers because of the recovery of willow strands reflourished due to the activeness of the elk.

Therefore, the reintroduction of the wolf population greatly impacted the ecosystem of the Yellowstone national park causing a ripple of positive effects.

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what do bacteria cells and human cells have in common

Answers

Answer:

They have cytoplasm, a plasma membrane, and ribosomes.

Explanation:

What's the interaction of tissues and organs within the circulatory system

Answers

Answer:

The cardiovascular or circulatory system is designed to ensure the survival of all cells.

Explanation:

What types of organisms have mitochondria

Answers

Answer:

sup ._.

Explanation:

The mitochondrion (/ˌmaɪtəˈkɒndrɪən/, plural mitochondria) is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms. Some cells in some multicellular organisms may, however, lack mitochondria (for example, mature mammalian red blood cells). A number of unicellular organisms, such as microsporidia, parabasalids, and diplomonads, have also reduced or transformed their mitochondria into other structures.

hope this helps

does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.

Answers

Answer:

Yes. You need to go to the doctor.

Explanation:

Your foot could be doing this because the bone itself could be bruised or else it somehow got injured or is in some other type of pain.  

When a pinecone is open, it disperses its seeds. Based on your experiment, can you tell what weather conditions are needed for pine trees to release their seeds? Explain your answer.

Answers

Answer:

If a pine seed finds the right micro-climate, it will eventually sprout and a pine seedling will start to grow. However, pine seeds are usually released in a dormant state, which is most often broken by cold stratification. As a result, a pine seed will not sprout until the following spring when warm weather and some spring moisture are present.

Explanation:

hope it helps

Answer:

hi

Explanation:

Cells througout a multicellular organism develop different ways to perform various tasks - this is called cellular specialization and/or cell differentiation.

true or false

Answers

It is false hope this helps

Explain how the electron transport chain makes ATP.

Answers

Answer:

t

Explanation:

While Glycolysis and the Citric Acid Cycle make the necessary precursors, the electron transport chain is where a majority of the ATP is created. The Electron Transport Chain makes energy ... At the end of the chain the electrons are taken up by oxygen molecules to make water. This is why oxygen is known as the final electron acceptor.

Answer:

Explanation:

during electron transport, energy is used to pump hydrogen ions across the mitochondrial inner membrane, from the matrix into the intermembrane space. A chemiosmotic gradient causes hydrogen ions to flow back across the mitochondrial membrane into the matrix through ATP synthase, producing ATP

Which of the following is created from amino acids linking together?

A. Carbon chains

B. Lipids

C. Polypeptide chains

D. Monomers

Answers

Polypeptide! They go along w amino acids put tg they create a polypeptide

A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for several days. He notices that the coat splits and a small root emerges. He concludes that—

water outside the seed coat exerted a pushing force, breaking the seed coat


air inside the seed coat exerted a pushing force, breaking the seed.



water outside the seed coat exerted a pulling force, breaking the seed coat.



gravity exerted a pulling force on the stem, breaking the seed coat.

Answers

Answer:

d

Explanation:

got it right on the test

The picture shows fruit produced by two parents and fruit produced by one of their offspring.

Which of these best describes this inheritance pattern?
codominance because he fruit color of the offspring is an intermediate form of the parents’ fruit color
codominance because both parents’ colors are expressed in the offspring
incomplete dominance because both parents’ colors are both visible in the offspring
incomplete dominance because the fruit color of the offspring is an intermediate form of the parents’ fruit color

Answers

Answer:

d

Explanation:

I got it right on edge

Answer:

its D

Explanation:

because if one is Black and white the offspring would be Gray

HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?

Answers

Answer:

Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.

The characteristic of life that represents birds migrating to the south is

Answers

Answer:

Living things respond to their enviorment.

Explanation:

Hope that helped!

What are two types of fermentation

Answers

Answer:

There are two types of fermentation: alcoholic fermentation and lactic acid fermentation.

Explanation: branilest plz

Which statement about the structure of organic molecules is true
1. DNA contains fatty acid chain
2. Lipids are composed of Amino acids
3. Proteins are composed of nucleotides
4. Carbohydrates contain monosaccharide units

Answers

Answer: The answer is D

Explanation:

The statement which is true about the structure of organic molecules is as follows:

Carbohydrates contain monosaccharide units.

Thus, the correct option for this question is D.

What do you mean by Organic molecules?

Organic molecules may be defined as those molecules that are correspondingly made of carbon and hydrogen. It can also include other elements like oxygen, sulfur, nitrogen, etc. It must contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds).

DNA possesses monomeric units known as nucleotides. Lipids are the derivatives of fatty acids. While proteins are composed of building blocks that are known as amino acids.

On the other hand, carbohydrates are derived from monosaccharide units that are togetherly held by glycosidic linkage.

Therefore, carbohydrates contain monosaccharide units is a statement that is true about the structure of organic molecules. Thus, the correct option for this question is D.

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HELLP ASAP

1. What are air pressure, wind, cloud cover, precipitation, and temperature called?

A. elements of climate


B. elements of weather


C. elementary aspects


D. elevation pressure

Answers

Answer:

your answer is B, it is part of the weather cycle and water cycle, give me a Brainliest if correct and have a good day:)

Explanation:

The answer would be B.

whats better
kirby
or
Zelda
franchise ​

Answers

Answer:

kirbyyyyyyyyyyyyy

Explanation:

:DDDDDD

Answer:

i think kirby bc he cyute <(^.^)^

Explanation:

zelda franchise for sum action and stuff

18. A solution of CaCl2is_?__ [ A. acidic
B. basic
N. neutral]

Answers

I believe the answer is N

What type of research method would best answer the question “How many rivers in Florida have nitrate pollution in them?”

Answers

Answer:

Field study

Explanation:

I took the quiz and got it right. Hope this helps :)

The type of research method that would best answer the given question is field study. The correct option is C.

What is field study?

Field studies are research activities that take place outside of your office or lab, in the context of the user.

There are numerous field-study methods and activities to choose from. Field studies also differ significantly in terms of how the researcher interacts (or does not interact) with participants.

Field research is a qualitative research method that involves observing and interacting with people in their natural settings in order to understand and interpret the social interactions of groups of people, communities, and society.

Field studies provide students with first-hand experiences that promote critical thinking, long-term retention, transferability, positive attitudes toward science, appreciation for nature, and increased scientific curiosity.

Field study is the type of research method that would best answer the given question "How many rivers in Florida have nitrate pollution in them?”

Thus, the correct option is C.

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Your question seems incomplete, the missing options are:

A. relational study

B. cause and effect study

C. field study

What is a boundary in which two plates move apart from each other called?

Answers

Answer:

A divergent boundary!

Explanation:

Hope this helps! <3

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