HELP PLEASE!!!!!!!!

Extend your thinking: Many chemical properties are determined by the number of valence

electrons. Elements with the same number of valence electrons will have similar properties.

Which element has similar properties to lithium? _________ Beryllium? _________

Explain: __________________________________________________________________

Answers

Answer 1
Same number of atoms on the outer shell, will have similar melting and boiling properties
Answer 2

Answer:

Same number of atoms on the outer shell, will have similar melting and boiling properties

Explanation:

just filled this out for chem


Related Questions

Are endocytosis and exocytosis examples of passive transport or active transport?

Answers

Answer:

Yes, they are both active transport processes.

Explanation:

Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell. Both endocytosis and exocytosis are active transport processes.

Active transport because the cell must use energy to move large particles across the membrane.

What does it represent?

Answers

Answer:

3

Explanation:

The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.

The correct answer is 3, the flow of energy
When they eat one another, the energy transfers

Do fungi have cilia, flagella or pseudopodia for locomotion?
i) Yes
ii) No​

Answers

Answer:

Yes

Explanation:

Cilia and flagella are also known among plants and animals, although they are absent from the true fungi. In some protists, single cilia have, in effect, been replaced by compound ciliary organelles (e.g., membranelles and cirri), which may be used effectively in locomotion and feeding.

What is the primary source of the Van Allen Belts?
O The Outer Core
O The Inner Core
O The sun
O The mantle

Answers

Answer the inner core

in order to get rid of the agricultural insecticides in fruits it's advised to soak them in a diluted sugar solution?​

Answers

Answer:

False

Explanation:

In order to get rid of the agricultural insecticides in fruits it's false to soak them in a diluted sugar solution. This won’t effectively remove the insecticides in the fruit.

It is usually advisable to use 2% salt solution In which cold Water should be used in order to achieve effective removal of the insecticide from the fruits to enable it fit for consumption.

The path that a body follows as it travels around another body in space is its

Answers

Answer:

orbit

Explanation:

The path that a body follows as it travels around another body in space is its ---- ORBIT

3. Which of the following is a defining characteristic of a prokaryotic cell?

a. The method of cellular Respiration
b. The composition of the cell membrane
C. Absence of a membrane-bound nucleus
d. The method of movement

Answers

Answer:

C

Explanation:

Prokaryotic cells do not have any membrane-bound organelles, only eukaryotes do.

The prokaryotic cell is a simple primitive cell, unlike the complex eukaryotic cells. The absence of a membrane-bound nucleus is a characteristic of prokaryotes. Thus, option C is correct.

What is a prokaryotic cell?

Prokaryotes have been the cells that have lived on earth for millions of years ago. They are made of single cells and hence are unicellular. Unlike the eukaryotic cell, they have simple mechanisms of living and reproduction.

They lack a centrally located defined nucleus that is not covered in any membrane and lies simply in the cytoplasmic material. Also, they lack organelles that make them different.

The genetic material is located in a concentrated form in a structure called the nucleoid that lacks a nuclear membrane.

Therefore, option C. the prokaryote lacks a membrane-bound nucleus.

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BRAINLIST OPPORTUNITY



Which type of infectious agent causes athlete's foot?
O a virus
O a bacterium
O a fungus
O a parasite

Answers

the answer is c. a fungus

Answer:c

Explanation:

How can a cell control the rate of an enzyme-catalyzed reaction?

Answers

Answer:

cells can control the rates of reactions involving these enzymes by regulating the movement of substrate molecules through the membrane. organisms may use hormones to carry messages from one part of the organism to another.

Explanation:

i hope that helps!

A change in the way something reflects light; can indicate a chemical
change

Answers

Answer:

A change in the way something reflects light very well can indicate a chemical

change.

if someone has pneumonia infection explain how this would affect the functioning of the circularly system

Answers

Answer:Circulatory system A pneumonia infection can spread from the lungs into the bloodstream. This is a serious complication. It can reach other major organs and result in organ damage or even death. The spread of bacteria through the blood is called bacteremia.

Thx for the points

Explanation:



O 1) Genetics is the study of

Answers

DescriptionGenetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. Though heredity had been observed for millennia, Gregor Mendel, a scientist and Augustinian friar working in the 19th century, was the first to study genetics scientifically.

Answer:

Genetics is a term that refers to the study of genes and their roles in inheritance - in other words, the way that certain traits or conditions are passed down from one generation to another. Genetics involves scientific studies of genes and their effects.

Explanation:

i have an iq of 216

What characteristic of viruses distinguishes them from cells? They lack an independent metabolism. Their traits do not evolve in response to selection pressures. They are not separated from their environments. They do not have hereditary material.

Answers

Answer:

The correct answer is "They lack an independent metabolism"

Explanation:

Viruses are usually active/alive in a living environment and become inactive in non-living environment; these is because they rely on the metabolic activities of the invaded living environment/cell. This property is a sharp contrast to normal living cells that are able to metabolize different substances independently using several organelles.

Answer:

The do not have hereditary material.

Their traits do not evolve in response to natural selection.  

They lack the ability to live independent of a host.

They are not separated from their environments.

Explanation:

I have the same question but different answers. Can you help

7. Why is the property of specific heat important to aquatic life?​

Answers

Answer:

Specific heat means amount of heat required to raise a temperature of a particular body, in case of aquatic life the specific heat plays an important role, the organisms living in an aquatic system require an certain body temperature to be maintained in order to survive.

Specific Heat raises the temperature of the water body resulting in Aquatic life to survive.

If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is ______ compared to the cell.

A: hypertonic

B: none of the above

C: isotonic

D: hypotonic

Answers

Answer:

it would be A: hypertonic

If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is hypertonic compared to the cell.

TONICITY:

Tonicity is the ability of a solution to induce movement of water in and out of a cell. Tonicity can either be hypertonic, hypotonic or isotonic in nature.

Hypotonic solution is a solution that is lesser in solute concentration compared to the cellular solution while hypertonic solution is a solution that is greater in solute concentration compared to the cellular solution.

This means that the glass of water with 20% salt is hypertonic (higher in concentration) to the cell containing 5% salt.

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Which activity releases carbon into the atmosphere?
respiration
photosynthesis
decomposition
feeding

Answers

C or decomposition have a nice day! :)

1 point
4. Bob rides his bike a distance of 54 miles in 4 hours. What is his speed in
miles per minutes? (Use the formula sheet below to determine the
equation you need to use.) *
I’m

Answers

He is going 0.225 miles per minute. 4 hours is 240 minutes. 54 miles/ 240 minutes is 0.225 miles per minute

What process occurs in Box A?

a. A scheme of cellular respiration. At box A, which is located in the cytosol, glucose turns into pyruvate with release of ATP and electrons carried by NADH.

b. Pyruvate from this stage is used in a cycle in box B, which is located in the mitochondrion.

c. As a result, ATP, CO2, and electrons carried by NADH and FADH2 are released.

d. The electrons carried by NADH and FADH2 from boxes A and B are used in box C (inside the mitochondrion) for transformation of a substance marked D (that comes from the cytosol) into a substance marked E (released to the cytosol) with release of ATP.

Answers

Answer:

The process occurring in Box A is Glycolysis

Explanation:

Glycolysis is the pathway by which glucose, a six-carbon molecule is oxidized to molecules of pyruvate, a three-carbon molecule with the release of ATP and electrons which are carried by NADH molecules.

The process occurs in the cytoplasm of cells and requires 10 glycolytic enzymes.

The pyruvate molecules from glycolysis is first oxidized to acetyl-CoA and carbon dioxide molecules. The acetyl-CoA molecules enter the citric acid cycle occurring in the mitochondria and are used up in the production of  ATP, CO2, and electrons carried by NADH and FADH2.

The electrons carried by NADH and FADH2 from glycolysis and citric acid cycle are used in the oxidative phosphorylation pathway occurring inside the mitochondrion for transformation of oxygen molecules into water molecules with release of ATP.

Why don’t we have a complete fossil record of all life that’s ever lived?

Answers

Answer:

Why don't we have a complete fossil record of all life that's ever lived? Fossil formation requires a rare mix of physical and biological conditions. Fossils must be exposed at Earth's surface to have a chance of being found. Fossils can be destroyed when rocks erode, melt, or change composition.

Explanation:

For many reasons, the fossil record is not complete. Most organisms decomposed or were eaten by scavengers after death. Many species lacked hard parts, which are much more likely to fossilize. Some rocks and the fossils they contained have eroded and disappeared.

Please mark me as the brainliest

Answer:

Sediment has to cover the bones in order for fossilization to take place

Explanation:

Fossil formation requires a mix of physical and biological conditions. Fossils have to be exposed in oder to find them too, so there might be some that are just too deep in the earth for us to find them

Why do you think the starch molecule shown is a good source of energy for an organism?

A. The many bonds in the starch molecule store energy.

B. The starch molecule is made of atoms.

C. Starch is the only type of molecule that provides energy.

D. A starch molecule is made of more than one kind of atom.

Please help! I suck at Science!

Answers

Answer:

A

Explanation:

because it is known as a large molecule

The starch molecule is known as a good source of energy for an organism because the multiple bonds in the starch molecule are responsible for the storage of energy. Thus, the correct option for this question is A.

What is a Starch molecule?

A starch molecule may be defined as a type of molecule that significantly consists of a chain of glucose molecules that are bound together in order to construct a bigger molecule, which is called a polysaccharide.

There are two types of polysaccharides present in the molecules of starch. They are as follows:

Amylose: It is a linear chain of glucose. Amylopectin: It is highly a branched chain of glucose.

These long chains of glucose store a tremendous amount of energy during the synthesis of the starch molecules. Glucose provides instant energy while the breakdown of bonds in starch molecules takes time. So, the energy is liberated accordingly with a long-lasting effect.

Therefore, the multiple bonds in the starch molecule are responsible for the storage of energy. Thus, the correct option for this question is A.

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Which normal meiotic event would be the MOST LIKELY explanation for the mutation that causes Williams Syndrome? cytokinesis​

Answers

Answer:

a

Explanation:

because

The answer would be A becuase your asking the normal one

LOCATION What city was located in northern Mesopotamia?​

Answers

Answer:

Assur is the answer for that question

Answer:

Assur

Explanation:

(b) These crops can be used to feed farm animals.
Mineral ions are absorbed by the animal's gut.
This is because mineral ions are
Highlight the correct answer in yellow:
A small and soluble
B small and insoluble
C large and soluble
D large and insoluble

Answers

A. small and soluble

Explain how tropical and polar climates differ.

Answers

Answer:

Okay.

Explanation:

Tropical climates are warm, bright, humid, and wet.

And Polar climates are cold, dry, and dark.

Obvious plant


Bottom text

Answers

Answer:

What is this supposed to be bottom text

Explanation: plz help

1. The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity. The pickup truck has a changing velocity because the pickup truck

All three vehicles have a constant velocity.

All three vehicles have a constant velocity.


All three vehicles have a constant acceleration.

All three vehicles have a constant acceleration.


The pickup truck is the only vehicle accelerating.

The pickup truck is the only vehicle accelerating.


The minivan and sedan are both changing veloc

Answers

Answer:

The pickup truck is the only vehicle accelerating.

Explanation:

Acceleration refers to the change in velocity per unit time which means that when the velocity changes, acceleration will be produced and if there is constant velocity of a vehicle so the acceleration will be zero. All three vehicles have same velocity of 15 m/s but the truck has no uniform velocity which means acceleration is produced in the truck while no acceleration is formed by three vehicles.

Answer:

The pickup truck is traveling on a curve in the road

Explanation:

Common sense! The truck is traveling on a curve and therefore will have a change in velocity.

James is conducting an experiment to test the effect of insecticides on frogs. He gives one group of frogs 10 cc of the insecticide and 0 cc of the insecticide to the other group of frogs. After 5 days, the effects of the insecticide are collected. what is the independent variable and dependent variable

Answers

Answer:

Independent variable: amount of insecticide

Dependent variable: effects of insecticide on frogs

Explanation:

Dependent variable in a research experiment, is the variable that is being studied, tested and measured by the researcher, while the independent variable is the variable that causes the dependent variable to change, when it is varied.

In this case, the amount of insecticides that is varied in quantity, is the independent variable that the researcher manipulates, while the independent variable is the effects caused by these varied amount of insecticide on frogs, which is tested and measured.

What do you notice about the size of the planets?

Answers

Answer:

space is weird and imagine all of the things we haven't discovered

Answer:

Small then big

What is being broken down for energy during cellular respiration?

Plants

Glucose

Mitochondria

Carbon Dioxide

Answers

B: Glucose

Glucose is broken down for energy during cellular respiration.

Because all living things are made of cells,
and you are a living thing, what kind of
cells are you made of?
(Prokaryotic or eukaryotic)

Answers

Answer:

eukaryotic

Explanation:

Well, there are some prokaryotic cells in the body, but mostly its eukaryotic, and the human body is categorized as eukaryotic organisms, because eukaryotic means that the cell has a nucleus, where prokaryotic cells don't.

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