Answer all 3 parts of this essay question:
A) (4pts) If you have a Periodic Table that is NOT color coded, describe where to look
to find elements which have similar chemical properties.
B) (4pts) Explain why they have similar chemical properties.
C) (3pt) Name three elements that have similar properties. List the group number,
number of valence electrons, and at least 3 properties thy have in common.

Answers

Answer 1

Answer:

Explanation:

Even if a periodic table is not color coded, we can still find elements with the same chemical properties. This is easy because when we look at the group to find the elements, we see those that have similar chemical properties.

As an example, the Elements of group 1 forms basic oxides. This is a general chemical property of all group 1 elements.

They have similar chemical properties because all the elements in any group has the same number of valence electrons.

Lithium, Sodium and Potassium.

They're all elements of group 1, they all have 1 valence electron

Related Questions

Help please
Veins have ------------ to ensure that blood under low pressure can return to the heart.
The circuit of circulation that goes from the heart to the body cells and back to the heart is called ---------------- circulation.
he oxygenated and deoxygenated blood are kept separate in the mammalian heart by the -----------.

Answers

1) valves 2)pulmonary circulation 3)mitral valve

Help me please :) biology

Answers

Answer: the answer is A

Explanation: A tropism (from Greek τρόπος, tropos, "a turning") is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. ... Tropisms are typically associated with plants (although not necessarily restricted to them).

Answer:

Explanation:

FlowersWhat do the pollen grain and the egg becomes during fertilization? They form a sepal. They become honey. They form a new pistil. They become a seed.

Answers

Hi hi I am so glad that you’re still there for a couple hours and you have a lot to say hi

Humans are negatively affecting the carbon cycle by

a
burning fossil fuels
b
extensive deforestation
c
excessive use of nonrenewable energy
d
over consuming meat products
e
all of these are correct

Answers

Answer:

All of these are correct

Explanation:

Answer:

e is your answer but I don't know how to explain it

Structural isomers are chemical compounds that have

Answers

Answer:

Same molecular formulas but different structures. The two molecules below have the same chemical formula, but are different molecules because they differ in the location of the methyl group.

Explanation:

Structural isomers are chemical compounds that have the same number of atoms but different arrangements.

What are structural isomers and their types?

The isomers known as structural isomers have the same chemical formula but have their atoms totally rearranged in a different order. These are molecules with the same type of molecular formula but various connectivities based on the order in which they are assembled.

The subgroups of structural isomers are ring chain isomers, metamers, tautomers, position isomers, and functional group isomers.

Because two isomers might have the same chemical formula but different chemical structures, they are significant. The molecule's characteristics are influenced by its structure. For example, butane and isobutane are structural isomers of each other.

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a boys pushes on a heavy box, but it does not move. what force is resisting the boy's push?

Answers

Answer:

Friction! :)

Explanation:

Friction is resisting the push. You will learn that newtons are also working against the boys push. The simplest answer is friction.I hope this is helpful!

Answer:

The Answer is Friction

Explanation:

Friction is resisting the boy's push, more informativlly, the type of friction here is Static Friction, which is the frictional force that resists force that is applied to an object.

Mark me as Brainliest if this answer helped :)

How can you explain the difference in number of mitochondria in these types of cells?

Answers

Answer:

Organs which need alot of energy to function properly have a greater number of mitochondria

Explanation:

Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.

Answer:

Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.

Come up with five ethical guidelines for research. Write statements that reflect your own views of what is right and wrong. If you really love animals, an example of one guideline might be “No animals may be used in research of any kind.” However, when coming up with these guidelines, be thoughtful about what they really mean. Think of the information you read about earlier. Try to phrase your guidelines in a way that would allow research that you think would be beneficial to still be done. You may find that certain circumstances may cause you to rethink your own ethics!

Answers

Ethical Guidelines for the Use of Animals in Research

Respect for animals' dignity.

Responsibility for considering options (Replace)

The principle of proportionality: responsibility for considering and balancing suffering and benefit.

Responsibility for considering reducing the number of animals (Reduce)

The skeletal and muscular systems of human are shown above. List three systems,
other than skeletal and muscular systems, the organism had when alive that help
it to survive. Describe how each of these three systems contributed to maintaining
homeostasis.

Answers

Answer:

The other systems I am aware of are...

Immune System: fights off disease-causing germs and other harmful substances

Respiratory System: works to move oxygen throughout the body and clean out waste gases like carbon dioxide

Cardiovascular System: delivers oxygen, nutrients, hormones, and other important substances to cells and organs in the body using blood

Nervous System: transmit signals between different parts of the body so we can move our muscles

Digestive System: breaks down food into small molecules, which are then absorbed into the body

Excretory System: removes waste from the human body

Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.

Cell P: Does not capture sunlight
Cell Q: Has cytoplasm but no chloroplast

Which statement about the two cells is correct? (5 points)
Cell Q also has a cell wall.
Cell Q also has large vacuole.
Cell P also has a large vacuole.
Cell P also has a cell membrane.

Answers

Explanation:

Cell Q also has a cell wall

what is the difference between DNA of a stomach cell and the DNA of a brain cell?

Answers

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.

What happens during development?

Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.

For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.

Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.

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What would happen if the rate of evaporation reduces

Answers

Answer:

When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.

Answer:

if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.

Which of the following molecules contains amino acid?
A.) Glucose
B.) Deoxyribose
C.) Protein
D.) DNA
E.) Ribonucleic Acid
F.) Aminodes

Answers

Answer:

C. Protein

Explanation:

Amino acids are small molecules that are the building blocks of proteins. Proteins serve as structural support inside the cell and they perform many vital chemical reactions. Each protein is a molecule made up of different combinations of 20 types of smaller, simpler amino acids.

In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?

Answers

Answer:

The S phase and prophase

Explanation:

Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.

Looking at the chart provided, the students need to develop a classification scheme to distinguish plant and animal cells. The presence of which of the following structures/organelles would be most useful for this purpose?

Answers

Answer:

The Cell Wall of plants are more geometrical, than animal cells. Plant cell wall are also stronger.

Plant cell is larger than animal cells

Plant cell have chloroplast while animal cells doesn't

Explanation:

Answer:

cell wall

Explanation:

Plant cells contain a cell wall while animal cells do not have a cell wall. By looking for the presence of a cell wall, students would be able to positively identify a cell as either plant or animal.

How are mutations and meiosis similar?

Answers

Answer:

Mutations can occur before,during and after mitosis and meiosis if a mutation occurs in cells that will make gametes by meiosis or during meiosis itself it can be passed on to off spring and contribute to genetic variability of the population.

may be this was ur answer of ur question.

Mutations and meiosis are in that they both produce genetic variation

in organisms.

Meiosis is a type of cell division that involves the production of sex cells or in sexual reproduction. They produce unique daughter cells and in situations where there is a mutation in this process, it is usually passed to the offspring which leads to genetic variation.

Mutations are also usually passed to the daughter cells as it occurs in their

cells during reproduction which makes it similar with meiosis in the area of

genetic variation.

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explain how the geologist knows that the flow is older then the intrusion

Answers

Through dating a sample of that rock, we determined the extrusion to be 250 million years old. An intrusion extends from the bottom layer into the fourth oldest layer. Through dating a sample of that rock, we determined the intrusion to be 100 million years old. The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

6

points!!!!!!!!

Define graft in biology

Answers

Grafting is a technique used by farmers and scientists to attach the tissue of one plant to the tissue of another. It allows for asexual reproduction of plants

if o blood group girl marries with A negative blood group boy can there be a chance that if they have a baby together then it may be B OR A group?

Answers

the baby will be A group, The A and B genes are dominant and the O gene is recessive.

what are two limitations in diffusion experiment ??

Answers

Answer:

Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.

Explanation:

once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. diffusion is limited by the surface area to volume ratio of the organism.

Enzymes work by
Help

Answers

Answer:

I think it will option C

hope it helps

I think it would be option B

Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily. Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without.

Which cellular structure produces proteins using coded instructions from DNA?
a) nucleus
b) chloroplast
c) mitochondrion
d)ribosome

Answers

the answer is d,ribosome

Which statement best explains why these cells have structural differences?

A
One of the cells is more primitive than the other cell.

B
The cells have different functions.

C
The cells evolved in different organisms.

D
One of the cells develops into the other type of cell.

Answers

Answer:

The answer is B, The cells have different functions.

Explanation:

Thx you for the points and plz vote me Brainliest!

Answer:

B. The cells have different functions.

Explanation:

I got it right on my test.

slove and get brainliest!!!

Answers

The answer is D. I got it right on the test

The chromosome of a bacterium
Select one:

a. is wrapped around proteins.

b. is found within the nucleus.

c. occurs in multiple pairs within the cell.

d. has a circular shape.

Answers

The answer is D. Has a circular shape :)

help ASAP! Please! Ill mark brainliest

Answers

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.

Answers

Answer:

cyanobacteria

Explanation:

There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in the form of stromatolites, layered structures similar to forms that are produced by some modern Cyanobacteria

Some fire extinguishers contain liquid carbon dioxide.
Suggest how carbon dioxide gas can be changed to liquid carbon dioxide without
reducing its temperature.

Answers

Answer:

Explanation:

The CO2 Extinguisher Cannisters contain carbon dioxide in liquid form, and when the extinguisher is let off the liquid is released into the air neutralising the oxygen that the fire is feeding on, disabling the fires ability to spread.

i think its what you want :)

neutralising-make (something) ineffective by applying an opposite force or effect.

please help!! biology!!!

Answers

Answer:

The correct answer would be b

Explanation:

What does heat transfer mean?

Answers

Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes.

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