what element has fewer valence electrons than magnesium

Answers

Answer 1
Any element in the first column of the periodic table. Hydrogen, lithium, sodium, and potassium are a few examples

Related Questions

What best explains how you can smell burned toast from another room?

Answers

From the other room you could smell the burn

Which human activity has the most negative effect on the stability of an ocean environment

Answers

Answer:

putting motor oil or leakage of oil in oil carrying ships

To increase memory, the author recommends that a
person
А
get fresh air and exercise.
B
spend time indoors at the library.
С
sleep six hours every night.
D
memorize homework assignments.

Answers

Answer:

Option B and D Best Support The Statement

Explanation:

To Increase yourself in knowledge one must go to the library and of course memorize their homeworks

I WILL GIVE BRAINLIEST PLS HELP

Which type of RNA is shown in orange, carrying an amino acid?

A. Messenger RNA
B. Transfer RNA
C. Ribosomal RNA

Answers

Answer: B. Transfer RNA

Explanation:

The concentration of urea in g per 100 cm3 in part A is 0.03, and in part C is 2.00.
How many times more concentrated is the urea in part C compared with part A?

Answers

0.03/2.00 its very easy

A certain chocolate bar contains 6 mg of caffeine in a 1.5 oz. Serving. The king-size version of the chocolate bar is 85 grams. How much caffeine, in mg, would you consume if you eat the entire king-size bar?Fill in the answer in the blank provided. Mg of caffeine

Answers

Answer:

The amount of caffeine that would be consumed if one eats the entire king-size bar will be 11.99 mg

Explanation:

This question can be reframed in the manner below for better understanding.

If 1.5 oz or ounce of a chocolate bar contains 6 mg of caffeine, how many milligrams (mg) of caffeine is contained in 85 grams of the same chocolate bar.

Firstly, the ounce should be converted to grams

If 1 ounce = 28.35g

1.5 ounce = ?

= 1.5 × 28.35/1

=42.53g

Hence, 42.53g of the chocolate bar contains 6 mg of caffeine

85g of the chocolate will contain

42.53g = 6mg

85g = X

where X is the amount of caffeine that will be consumed in mg

X = 85 × 6/42.53

X = 11.99 mg

The amount of caffeine that would be consumed if one eats the entire king-size bar will be 11.99 mg

What r the 4 seasonal stages of the year ?

Answers

Answer:

Spring, Summer, Winter, and Fall

Explanation:

Please mark me brainliest]

Answer:

Spring, Summer, Autumn (Fall) and Winter.

Explanation:

Rita planted hydrangeas in her and her grandmother’s home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home. This made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic. This is an example of which type of variation? Explain.

Answers

Answer:

NEWS

SPORTS

LOCAL

CULTURE

COMMUTING

FOOD + DRINK

TRAVEL

REAL ESTATE

OBITS

COUPONS

News

Sports

Local

Culture

Commuting

Food + Drink

Travel

Real Estate

Obits

Coupons

Does Soil Affect Flower Color?

Home Guides

/

Garden

/

Garden Care

By

Mary Simpson

This flower must have grown in neutral soil, with little aluminum.

In some varieties of bigleaf hydrangeas (Hydrangea macrophylla), soil pH determines whether the plant will produce blue or pink flowers. Blooms appear bluest when grown in acidic soil with a pH in the 5.0 to 5.5 range. The same cultivar may sport pink blossoms in soil with a more neutral pH, such as 6.5 to 7.0. Florists control flower color by potting soil mixture

A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.

What technology helps her to stay in her home safely?

The technology that can help her stay in her home instead of moving to a nursing home is a medical-alert bracelet that informs first responders of a fall or an emergency.

The medical alert bracelet is vital as it will help during emergencies as first responders will be made aware of the grandmother's situation and can then respond on time.The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.

This is the best option as other options doesn't have to do with emergencies. Rita planted hydrangeas in her and her grandmother’s home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.

Therefore, A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.

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NASA has discovered a new planet in a distant solar system. On this new planet, they have found a mysterious green slime. The green slime only grows at certain temperatures and under certain moisture levels. Scientists found that if they put the green slime in a freezer, it would shrink itself to maintain an internal temperature of 75°. They also found that the green slime has specialized pumps to pump out water if it gets too wet. As of yet, none of the green slime samples have reproduced, but they do appear to be growing very slowly. When looking at the green slime under the microscope, scientists can see smaller structures filled with green slime and tiny pumps. What are some reasons the green slime may be considered a living organism? What are some reasons the green slime may not be considered a living organism? Do you think the green slime is alive? Why or why not? *

Answers

Answer: The following assumptions can be made for the green slime.

Explanation:

1. The green slime has many characteristics, which indicates that these are adaptations which were used by the slime to survive. It uses pump to expel out excess water, and in freezing it can shrink itself to maintain its temperature. Thus these characteristics indicates that the green slime is living.

2.  The green slime did not reproduced. This indicates that the slime was not living.  

3. The slime was living because it had characteristics which enable it to survive like other living organisms.

__ used to help substances enter or exit the cell membrane

Answers

Answer:

Transport Protein

Explanation:

This is used to help substances enter or exit the cell membrane.

Dr. Kettlewelll predicted that clean forests would have _____________ colored moths, and polluted forests would have _________ colored moths.

Answers

Answer:

Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.

Dr. Kettlewall predicted that clean forests would have light-colored moths and polluted forests would have dark-colored moths. This is an example of natural selection.

What is natural selection?

Natural selection is a phenomenon in which the fittest individual is chosen by nature. The animal can live and reproduce in that particular environment. An example is the peppered moth population.

The light-colored moths were found on the light-coloured bark, but their population started to decline after the pollution. In the polluted environment, they were easily chosen by predators. So only dark moths survived because they blended in with the polluted environment.

Following the end of the pollution, light colored moth increased again. Predators had a difficult time identifying the light moth because it blended in with the unpolluted environment. Hence, their population increases in unpolluted areas.

Hence, Dr. Kettlewall predicted that a clean forest would have a light-colored moth and a polluted forest would have a dark-colored moth.

To learn more about natural selection, refer to the following link:

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what is the answer?

Answers

Answer:

[tex]\boxed {\tt 3}[/tex]

Explanation:

An element only has one type of atom and cannot be broken down by chemical means.

Let's analyze the answer choices.

1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.

2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.

3. This has one type of atoms, so it is an element.  

Therefore the best answer choice is 3.

What evidence does not support the evolution of chloroplasts and mitochondria from prokaryotic cells?

A. O Fossilized remains of archaebacteria
B. O Double membranes of the organelles
c. Similar methods of reproduction
D. O Presence of circular DNA


Answers

Answer:a

Explanation:

what would happen if all countries in the world depended only on wind power?

Answers

Answer:

A country getting all its electricity from a combination of wind, solar ... Not only does that make vitamin D a commodity, it also means solar ... Elon Musk became a sensation in South Australia last year after he decided Tesla would build the world's biggest lithium-ion battery ... This didn't happen overnight.

• All _______________ as we know it on Earth is dependent on __________________.

Answers

Answer:

scientific progress

individuals

Explanation:


3. Why were germinating seeds used instead of dormant (non-
germinating) seeds?

Answers

Answer:

An important function of seed dormancy is delayed germination, which allows dispersal and prevents simultaneous germination of all seeds. ... Many species of plants have seeds that delay germination for many months or years, and some seeds can remain in the soil seed bank for more than 50 years before germination.

A researcher finds that males in two populations of bowerbirds make different types of structures to attract female birds. The males of population 1 build hut-shaped structures and decorate them with colorful objects. The males of population 2 loosely interweave sticks around a central pole and decorate it with dull-colored objects. Female bowerbirds prefer structures made by males of their own population.

Answers

Answer:

.....

Explanation:

....

A student claims that a leaf is living, and a plastic leaf is nonliving. Which statement provides evidence to support the claim?

Answers

Answer:

The plastic leaf lacks cellular structure.

Explanation:

1 point
What is the difference between reproduction and heredity?
Reproduction is the process of passing on traits, whereas heredity is the process of
producing offspring
Reproduction is the process of producing offspring, whereas heredity is the process
of passing on traits.
Reproduction always involves changes in inherited characteristics, whereas heredity
does not
Heredity always involves changes in inherited characteristics, whereas reproduction
does not

Answers

Answer:

Reproduction is the process of producing offspring, whereas heredity is the process

of passing on traits.

Explanation:

PLEASE MARK BRAINLIEST, if you think this is correct and best! Thanks!

Reproduction generally means making copy of something, like giving birth/breeding, duplicating.

Heredity is inheritance of traits/ passing on traits from parents t thsir child/children through genes. It makes children have same traits as their parents and looks so what same like their parents!

They definitely aren’t same!

Reproduction is the process of producing offspring, whereas heredity is the process of passing on traits.

What do you mean by heredity?

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information.

Heredity explains why offspring resemble, but are not identical to, their parents and is a unifying biological principle. Heredity refers to specific mechanisms by which characteristics or traits are passed from one generation to the next via genes.

Heredity can be defined as the transfer of genetic characters from parents to offsprings by the process of fertilization, where the nuclei of male and female gamete fuses with each other and forms the genetic material of the zygote.

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The rate of a physical or chemical process
refers to the amount of product formed per
unit time is expressed as
(A) rate=
Sp
Ss
st
(B) rate=
др
ds
(C) rate=
8p
(D) rate
др
St​

Answers

Answer:

(A) rate=

Sp

Ss

st

Explanation:

The rate of chemical is a measure of the speed of a chemical reaction.

The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.

Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.

During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.

Reaction rate  = [tex]\frac{change in concentration of a reactant/product}{Time taken}[/tex]

What differentiates passive transport from active transport?

Group of answer choices

Molecules move down a concentration gradient during passive transport.

Passive transport involves molecules moving across the cell membrane.

ATP is needed for passive transport to occur.

Proteins have a role in passive transport.

Answers

Answer:

The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration

Explanation:

This food web represents a community in a rain forest.

If the beetles disappeared from this community, which changes would be
likely to occur? Select the three correct answers.

A. An increase in the number of strangler figs

B. A decrease in the population of sloths

C. A decrease in the number of boa constrictors

D. An increase in the population of fruit bats

E. A decrease in the population of poison dart frogs

Answers

Answer:

A, C, E

Explanation:

If the beetles disappeared from this community, changes likely to occur include

an increase in the number of strangler figs, an increase in the population of fruit bats and decrease in the population of poison dart frogs

The beetles are insects which eat up strangler figs and a decrease mean an increase in its number.

The population of fruit bats will increase as they will have more strangler figs available for food.

Poison dart frogs will decrease because they feed primarily on beetles in the ecosystem.

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What are the solutions of the following equation?

Answers

Answer:

Explanation:

5 ( x + 3 ) - 4 = 8 ( x + 3 ) - 4

5x + 15 - 4 = 8x + 24 - 4

5x + 11 = 8x + 20

By substituting,

5x - 8x = 20 - 11

-3x = 9

x = -9 / 3

x = -3

So the correct option is D

Hope this helps

plz mark as brainliest!!!!!!!!!!!!!

5(x+3)-4=8(x+3)-4
5x+15-4=8x+24-4
Start combining
5x+11=8x+20
5x-8x=20-11
-3x=9
X=9/3
X=-3

Consumers, or heterotrophs, take in food made by other organisms. Then they break apart the food to release its energy. How do these actions of consumers contribute to the carbon cycle?
A. Eating and breaking apart food converts carbon to other elements.
B. Eating and breaking apart food converts other elements into carbon.
C. Eating food involves taking up carbon dioxide.
D. Eating and breaking apart food releases carbon dioxide as a byproduct.

Answers

Answer:

d ? maybe , i just guessed tbh .

Answer: ya it’s D)

Explanation:

Which molecule is most common in the human body?
O A. H2
B. N2
C. H20
D. CO2

Answers

H20 is the most common molecule in the human body.

How do limiting factors most affect population size? stop population growth restrict population growth increase population growth decrease population growth

Answers

Answer:

restrict population growth

Explanation:

Limiting factors of a population are those factors that constrict the growth of the population. They often act as a check on population growth.

Some of these limiting factors are:

Food Water Habitat of organisms

From the giving choices, limiting factors have been clearly shown to inhibit population growth.

The lack of some of these factors checks the population, thereby impeding its growth.  

Answer:

How do limiting factors most affect population size?

restrict population growth

Explanation:

correct on edge unit test

Based on the description of DNA, given in the Do Now, what could be the nucleotide composition of a DNA double helix? 90 points 20% adenine, 20% guanine, 30% thymine, 30% cytosine 60% adenine, 20% thymine, 10% guanine, 10% cytosine 20% adenine, 20% thymine, 30% guanine, 30% cytosine 60% adenine, 20% guanine, 10% thymine, 10% cytosine

Answers

Answer:

20% adenine, 20% thymine, 30% guanine, 30% cytosine

Explanation:

Edwin Chargaff stated in his rule that, in a DNA molecule, the amount of purine bases (Adenine and Guanine) should equate the amount of pyrimidine bases (Cytosine and Thymine). Mathematically, this means that;

A + G + C + T = 100%

Where;

% Adenine base = % Thymine base

% Guanine base = % Cytosine base

Hence, according to this question, the DNA molecule described will contain

20% adenine = 20% thymine,

30% guanine = 30% cytosine

20% A + 20% T + 30% G + 30% C = 100%

Which of the following is true about the structure of water?
1. It is held together by an ionic bond
2. It is nonpolar
3. It is polar
4. It has one positive hydrogen attached to one negative oxygen

Answers

Answer:

3.) It is polar

Explanation:

Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. Other molecules, such as Ethane, are nonpolar, having neither a positive nor a negative side.

Which characteristic of life is the car missing that leads someone to conclude it is not alive? Please answer in complete sentences

Answers

Answer:

Explanation:

a car does not have the ability to reproduce, or maintain homeostasis. Unlike all living things

A car does not follow the rules dictated by the cell theory and so forth. a) A car cannot reproduce. b) A car does not have any cells. c) A car does not maintain homeostasis. d) A car lacks genetic material.

Which example illustrates adhesion?
O water droplets sticking to a window
O water forming a large drop
O water evaporating from a leaf
O water falling from the sky

Answers

Answer:

The answer is Water droplets sticking to a window.

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