Answer:
5 elements
Explanation:
Na, Cl, Ag, N, O are all separate elements because the first letter of an element is always capital and the second one is lowercase
The different chemical elements present in this equation NaCl + AgNO₃ --> NaNO₃ + AgCl are Na, Cl, Ag, N, and O.
What are chemical elements?Chemical elements are pure substances that contain only atoms and have the same amount of protons in the nuclei.
There are a total of 118 elements are present in a periodic table.
The elements present in the given equation are:
Na- sodium, Cl-chlorine, Ag-silver, N-nitrogen, and O-oxygen.
Thus, the elements present in the equation are Na, Cl, Ag, N, and O.
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11 Which is a bright streak of light in Earth's atmosphere?
A. a comet
B. a meteor
C. a meteorite
D. a meteoroid
Answer:
B. a meteor
Explanation:
Meteors, also known as shooting stars, are pieces of dust and debris from space that burn up in Earth's atmosphere, where they can create bright streaks across the night sky.
Hope this helped!!!
How do you think we could solve the problem of plastic pollution in our oceans?
Answer:
Starting from your own home is the best way to reduce plastic pollution. You can reduce it by stop using plastic bags, water bottles, anything that is plastic. You can reuse things instead. Use less energy. Turn off the lights whenever you leave the house or if you aren't using it. Lastly, conserve water. Don't let the water running if you aren't using it.
Hope this helps! :)
I recommend you search this same question, and you'll find the answer. If I were to answer your question theoretically, I would copy and paste the answer I searched, but but use some of my own words.
here is my question..
Answer:
3.0
Explanation:
What type of representation of inheritance is shown in the figure?
(16.5 Points)
Punnett square
flow chart
pedigree
graph
1.What are the products in this equation? NaCl + AgNO3 --> NaNO3 + AgC
2.How many atoms make up the reactants in this equation? 2HCl + CaCO3 --> CaCl2 + H2O + CO2
3.Is this equation balanced? 2HCl + CaCO3 --> CaCl2 + H2O + CO2, Yes or no
Answer:
Explanation:
NaCl + AgNO3 → NaNO3 + AgCl
5 atoms
no
Answer:
sodium, chloride, silver, nitrogen, oxygen
9
yes
Explanation:
How many atoms make up the products in this equation? NaCl + AgNO3 --> NaNO3 + AgCl
Answer:
14
Explanation:
if there is no number behind the element, it counts as one, but if there is, you do 1 times x(whatever the exponent is) and thats how many that one element counts for with atoms. then you just add them all up
Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST describes how a scientific explanation becomes widely accepted? pls help due tonight
Answer:
A scientific theory is a broad explanation that is widely accepted because it is supported by a great deal of evidence. Examples of theories in physical science include Dalton's atomic theory, Einstein's theory of gravity, and the kinetic theory of matter.
I hope this helps a little bit.
Answer: A hypothesis is tested repeatedly and the results are confirmed with evidence
and debated by the scientific community
Explanation:
Why do the constellations we see change when the seasons change?
Answer:
caused by Earth's orbit around our Sun
Explanation:
:)
what process is illustrated in the figure above?
Answer:
DNA -> RNA is transcription
RNA > Protein is translation
The process illustrated in the figure above is transcription.
What is transcription?Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
The process of transcription starts when an enzyme called RNA polymerase (RNA pol) attaches to the template DNA strand and starts to gets catalyze the production of complementary RNA.
Large enzymes composed of a lots of dozen subunits, and when active on DNA, they are also so much complexed with other . In many cases, these signal which gene is to be transcribed.
It contains all the information within the code of amino acids and some of them also help in protein synthesis too.
Therefore, the process illustrated in the figure above is transcription.
Therefore, it is transcription.
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Which two minerals can be scratched by a knife but not copper coin?
PAST DUE ASSIGNMENT HELLPPPPP!!
Answer:
What was the assignment? There's nothing attached, my guy
Explanation:
Answer: Okay What is the assignments?
Explanation:
a. Convert the following Fahrenheit temperatures to Celsius (you may use a calculator):
98.6°F (normal body temperature)
68°F (room temperature)
20°F (a cold day)
b. Convert the following Celsius temperatures to Fahrenheit:
10°C
30°C
-40°C (that’s cold!)
Answer:
37C
20C
-6.67C
50F
86F
-40F
Explanation:
Iris is a farmer who has two fields. Field 1 is near the ocean and Field 2 is far inland. Iris is planting almonds, which require a lot of precipitation. Which field should Iris plant her almonds in?
Field 1, because the closer an area is to a body of water, the more precipitation there is.
Field 2, since inland areas are warmer, which causes greater amounts of precipitation.
Field 2, because the more inland an area is, the more precipitation there will be.
Iris could plant the almonds anywhere since the location of the fields does not affect precipitation.
Answer:
I think it is Option 3: Field 2, because the more inland an area is, the more precipitation there will be.
Explanation:
Whenever it rains, the water evaporates FROM the ocean and the wind blows clouds more towards inland, and it does rain more inland
Answer:
A
Explanation:
There is more moisture near an area that is close to a body of water which causes humidity, which results in precipitation.
So sorry, if I'm incorrect! Good luck with your assessment :)
What causes change to ecosystems and when changes to the living or nonliving things occur, what is the impact on the populations of that ecosystem?
(please write 2-3 sentences)
Answer:
Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems
Explanation:
Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems
A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement BEST explains why the girls’ physical appearance includes both similar and different features?
Group of answer choices
the daughters received a random set of genes from both parents
one daughter received fewer genes than the other
each daughter received a different number of genes from each parent
one daughter received all her genes from her father and the other daughter received all her genes from her mother
Answer:
C
Explanation:
each daughter received a different number of genes from each parent.
Answer:
a (top)
Explanation:
for B it shows different amount of genes
c is the same as B
d shows that they don't have similar genes
Which statement is true about DNA?
Group of answer choices
. DNA contains genes that hold specific traits for an organism.
Organisms create their own DNA sequence that is not like their parents.
DNA is an exact copy from parent to offspring.
DNA is not necessary for an organism to reproduce.
In humans, a widow’s peak hairline is determined by the dominant allele (W), and a straight hairline is determined by the recessive allele (w). If a male is heterozygous for a widow's peak and a female has a straight hairline, what is the probability they will have a child with a straight hairline?
pls help due tonight
100%
50%
25%
75%
Answer:
75%
I hope this helps a little bit.
A model of tin, an element with the atomic number 50, is shown here. The valence electrons are modeled here in this image. Which statements are supported by the information in the model? Select ALL That apply.
A) Tin needs four more electrons to complete its outer shell.
B) Tin has no neutrons in the nucleus, as is shown in the model.
C) Tin is highly reactive because it only has four valence electrons.
D) Tin is negatively charged because it more electrons than protons.
E) Tin has a low reactivity because it has full inner shells of electrons.
Answer: A and C
Explanation:
According to the electronic configuration, tin needs 4 more electrons to complete its outer shell.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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What is the electron atomic number
Answer:
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Anyone know what to do for Punnett Squares?
Answer:
A. 75% B. 25%
Explanation:
heterozygous= having two different alleles of a particular gene (Ss)
S s
S SS Ss
s sS ss
A. SS, Ss, sS will have spikes on the tail => 3/4 = 75%
B. ss will have hammer tails => 1/4 = 25%
HElp i will give you brainliest
Answer: Mass
Explanation:
Answer: masses
Explanation:
(a) What human activity is responsible for the formation of smog and acid rain? (b) What kinds of harm does photochemical smog cause? (c) Do you think that photochemical smog levels are high during the winter or during the summer? Explain.
NO FILES OR I REPORT >:-((
Answer:
Explanation:
a) Air pollution
b) It can cause climate change, respiratory problems etc
c)Winter. More energy is being used in the winter to heat homes, offices, businesses etc.
your alien friend from planet xenon is visiting and wants to learn how to breed pea plants you show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white flowers your friend is confused as to why your plants all have purple flowers how would you explain in the simplest way possible what happened
Answer:
The purple flowers were probably was dominate allel and the white flowers were recessive.
Explanation:
Based on the pedigree, how many offspring from this cross had the recessive phenotype?
(17 Points)
one
two
three
five
Answer:
two
Explanation:
PLZ HELP 50 PIONTSSSSS
The Great Lakes region has both biotic and abiotic components.
Abiotic components include water, temperature, rainfall, and geological features. Biotic components include all of the animal and plant species in the area.
The ecosystem of the Great Lakes includes _______.
a
all of the biotic and abiotic components of the Great Lakes region
b
only the plant and animal species that live in the Great Lakes region
c
only the abiotic components of the Great Lakes region
d
only the animal species that live in the Great Lakes region
Answer:
i think it is "A" not sure
Explanation:
Answer:
A
Explanation:
if abiotic components include water, temperature, rainfall, and geological features. Biotic components include all of the animal and plant species in the area. the the answer would be A
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple
Answer:
in 1988, a forest fire destroyed much of yellowstone park.This photo, taken 17 years later,show that the forest is gradually growing back, small grasses first grew here and are now being replaced by small trees and shrubs, this is an example of the later stages of secondary succession.
The early stages of succession after a forest fire are shown in these pictures. taken four years after the fire. they show the charred remains of the original forest as well as the small grasses and shrubs that are beginning to throw in the back area.
During a volcanic eruption,molten lava flows over the ground and into the water. after the eruption is over the lava cools and hardens into bare rock.
lichen spores carried on the wind settle on the rock and creat soil. linchens add nutrients to the soil as they die and decay.
Ecosystems are "dynamic". this means that the ecosystem change
over time.
during the ice ages , glaciers once covered areas that are tropical rainforests today. both natural forces and human actions cause ecosystem to change
if there is a big ecosystem change caused by natrual forces or human actions , the plants and animals that live there might be destroyed. or they may be foreced to leave.
over time a new community will develop and then that community may be replaced by another.
primary succession is the type of eological succession that happens on new lands, lands where life has not yet been existed. primary succession can take place after lava flow cools and hardens into new land or glacier recedes exposing new land.
secondary succession is the type of succession happens after something destroys the habitat, such as a flood or other natrual disaster. abandoning a field that was once used for agriculture can also lead secondary successionn
What type of chart is used to help organize study and predict genetic inheritance?
(16.5 Points)
Punnett square
flow chart
graph
diagram
HELP WILL GIVE BRAINLIEST
Which of the following regions does not experience seasons: Tropic of Cancer, Equator, or Artic?
Write an explanation below using observations from the simulator found at the following link, to justify your answer.
https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-topic/pi/season-simulator
Answer:
Equator and Arctic because equator is too hot and arctic is too cold. In equator the rays of the sun fall directly all over the year and this is why the [people living there experience a harsh hot weather and high temperatures. On the other hand people living in the Arctic region experience extreme cold because very little sunlight reaches there. Temperatures are freezing cold all over the year.
plz mark me as brainliest.
Answer:
The arctic does not suffer any seasons as it is furthest from the equator and therefore is covered in ice snow and rarely sees sunlight. Therefore the arctic does not have summer autumn or spring. The arctic is so cold that not many trees can survive and the ones that do are usually chopped down to build houses for the people who live there. The arctic is home to one of the worlds largest seed banks that is there in case of a really bad emergency where the farmers crops in another country are not growing.
Explanation:
Ocean water can be desalinated through the processes of reverse osmosis or heat distillation. Why don't we do this more often? Check all correct answers.
It's expensive.
It uses a great deal of energy.
We would drain the oceans.
We don't know how
Why would carbon dating not be a useful way to date a fossil of Coelophysis?
Answer:
Carbon dating cannot be used on most fossils, not only because they are almost always too old, but also because they rarely contain the original carbon of the organism. Also, many fossils are contaminated with carbon from the environment during collection or preservation proceedures.
Explanation:
Carbon dating can not be a useful way to date a fossil of Coelophysis because carbon has a short half life.
Carbon dating and it's usesCarbon dating, which is also called radiocarbon dating, is defined as the method used to determine the age of an object containing organic material with the use of isotope of carbon.
Carbon is used and absorbed by living organism including radioactive carbon-14. When they die, the radioactive carbon that they've accumulated continues to decay.
Because of the short length of the carbon-14 half-life, carbon dating is only accurate for items that are thousands to tens of thousands of years old. Fossil of Coelophysis are much older than this. Geologists must therefore use elements with longer half-lives.
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