Which statements best explain how students would know if a chemical reaction occurred during the steel wool demonstration? Select TWO correct answers from the choices below.

Answers

Answer 1

Answer:

When the heat energy releases and formation of iron oxide.

Explanation:

When the heat energy releases and formation of iron oxide are the indications that chemical reaction takes place. during the steel wool demonstration. During the steel wool demonstration, heat energy released when the iron combine with oxygen forming solid iron oxide. So we can conclude that release of heat energy and formation of iron oxide tells us that the chemical reaction takes place.


Related Questions

Which of the following organisms is likely to be most affected by biomagnification of a pollutant?
a. phytoplankton
b. zooplankton
c. fish d.hawk

Answers

Answer:

Hawk is the correct answer. Hope it helps!

Question 12
What could be an explanation if Juanito crosses one white flower with a red flower but all
the offspring are pink flowers?
sex-linked
simple Mendelian inheritance
codominance
recessive epistasis
incomplete dominance

Answers

the answer is codominance or choice #3
I think it’s codominance

Using the codon chart, what is the sequence of amino acids that is produced when this RNA is translated?

Answers

Answer:

In transcription, the DNA sequence of a gene is "rewritten" in RNA. In eukaryotes, the RNA must go through additional processing steps to become a messenger RNA or mRNA. In translation, the sequence of nucleotides in the mRNA is "translated" into a sequence of amino acids in a polypeptide (protein chain).

Translation starts at a methionine (Met) codon, which specifies the amino acid methionine (Met). Translation stops at a Stop codon, which does not specify an amino acid.

Translation of an mRNA molecule by the ribosome occurs in three stages: a. initiation

b. elongation

c. termination.

During initiation, the small ribosomal subunit binds to the start of the mRNA sequence.

Translation happens in four stages: activation (make-ready), initiation (start), elongation (make longer), and termination (stop). These terms describe the growth of the amino acid chain (polypeptide).

20 Amino Acids In Human Protein:

Table of DNA Base Triplets, RNA Codons & Anticodons

Amino Acid

DNA Base Triplets

M-RNA Codons

T-RNA Anticodons

alanine

CGA, CGG, CGT, CGC  

GCU, GCC, GCA, GCG  

CGA, CGG, CGU, CGC  

arginine

GCA, GCG, GCT, GCC

TCT, TCC

CGU, CGC, CGA, CGG

AGA, AGG

GCA, GCG, GCU, GCC

UCU, UCC

asparagine

TTA, TTG

AAU, AAC

UUA, UUG

aspartate

CTA, CTG

GAU, GAC

CUA, CUG

cysteine

ACA, ACG

UGU, UGC

ACA, ACG

glutamate

CTT, CTC

GAA, GAG

CUU, CUC

glutamine  

GTT, GTC

CAA, CAG

GUU, GUC

glycine

CCA, CCG, CCT, CCC

GGU, GGC, GGA, GGG

CCA, CCG, CCU, CCC

histidine

GTA, GTG

CAU, CAC

GUA, GUG

isoleucine

TAA, TAG, TAT

AUU, AUC, AUA

UAA, UAG, UAU

leucine

AAT, AAC, GAA, GAG

GAT, GAC

UUA, UUG, CUU, CUC

CUA, CUG

AAU, AAC, GAA, GAG

GAU, GAC

lysine

TTT, TTC

AAA, AAG

UUU, UUC

methionine

TAC

AUG

UAC

phenylalanine

AAA, AAG

UUU, UUC

AAA, AAG

proline

GGA, GGG, GGT, GGC

CCU, CCC, CCA, CCG

GGA, GGG, GGU, GGC

serine

AGA, AGG, AGT, AGC

TCA, TCG

UCU, UCC, UCA, UCG

AGU, AGC

AGA, AGG, AGU, AGC

UCA, UCG

stop

ATT, ATC, ACT

UAA, UAG, UGA

AUU, AUC, ACU

threonine

TGA, TGG, TGT, TGC

ACU, ACC, ACA, ACG

UGA, UGG, UGU, UGC

tryptophan

ACC

UGG

ACC

tyrosine

ATA, ATG

UAU, UAC

AUA, AUG

valine

CAA, CAG, CAT, CAC

GUU, GUC, GUA, GUG

CAA, CAG, CAU, CAC

Explanation:

What is DNA (Deoxyribose Nucleic Acid)?

Answers

DNA is a complex molecule that contains all of the information necessary to build and maintain an organism.

DNA ( Deoxyribose Nucleic Acid ) is a molecule.

and its where a bunch of atoms stuck together.

Can someone help please.

Answers

A doing research on environment

Answer:

A - Doing research on how plastic effects the enviorment

Explanation:

Biology is the field of science that is all about living things, and the proccess of the natural world.

The mechanics of ships is man made, and not livng or apart of the natural world

Plastic bag construction is also man made.

However, the enviroment is a part of the natural world, and how plastic bags effect it could be considered biology.

So your answer is A.

what is photosynthesis ?​

Answers

Answer:

Photosynthes is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. 

Question:-

What is photosynthesis?

Answer:-

The process by which green plants and some other organisms make thier own food by converting sun light and carbon dioxide into energy is called photosynthesis.

What gets trapped in the atmosphere by greenhouse gases?

sunlight

thermal energy

water vapor

methane gas

Answers

thermal energy gets trapped in atmosphere due to greenhouse gases

the answer is methane gas. sunlight cannot be trapped, thermal energy cannot be trapped, water vapor would just turn into water.

Which of the following do all living things have in common?
O A. All living things are made up of at least one cell.
O B. All living things breathe oxygen.
O C. All living things are made up of many cells.
ОО
D. All living things eat other living things for energy

Answers

Answer:

C

Explanation:

all living things are made of up many cells

Which iS required for both anaerobic
respiration and aerobic respiration?
oxygen
water
mitochondria
glucose

Answers

Answer:

glucose

Explanation:

bc i said so

Which part of the DNA strand is responsible for determining an organism's traits?​

Answers

The part of the DNA strand that is responsible for determining an organism's trait is called gene


Many animals exhale carbon dioxide, CO2, as a waste product, but plans need CO2 to
live.

Answers

Answer:

All animals exhale carbon dioxide i.e. co2 but plants need co2 to live because co2 helps in the process of photosynthesis to produce carbohydrate and oxygen.

6CO2 + 6H2O → C6H12O6 + 6O2.

Pick the right options in the dropdown below . Which characteristic of life is represented below?

Answers

what are your answer choices?

What 3 characteristics does an object have to have in order to be considered a planet

Answers

Answer:

a planet must do three things: It must orbit a star(sun) It must be big enough to have enough gravity to force it into a spherical shape. It must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the Sun.

Adolescentes require fewer hours of physical activity than adults

Answers

Answer:

True

Explanation:

Question 13 of 32
Two of the three points of the cell theory are listed below.
• All living things are made of cells.
• All new cells come from preexisting ones.
Which of the following is the third point of the cell theory?
A. Cells are the basic units of life.
B. Cells store genetic material in the nucleus.
C. Cells are spherical.
O
D. Cells are surrounded by a rigid cell wall.
SUBMIT

Answers

Answer: the answer is D

Explanation:

Answer:

Answer D

Explanation:

Students are studying the length of time that different battery brands can keep flashlights
operating. Which of these should remain constant in this investigation?
A. The length of time
B. The color of the flashlights
C. The type of flashlights
D. The brand of the batteries

Answers

The type of flashlights (c)

heres another one, these dont even make sense

Answers

Answer:

zero percent zygous dominant

Respiration is helpful in (1 Point) Removing waste from the body Producing energy within the body Production of proteins Production of carbohydrates

Answers

Answer:

Producing energy within the body.

Explanation:

The burning of fossil fuels contributes to the addition of greenhouse gasses to the atmosphere. These gases trap thermal energy in the Earth’s atmosphere. Which of the following would be the most reasonable changes that could result from an increase in the burning of fossil fuels? *

a.The air all over the globe would become dirtier.
b.There would be a global rise in temperatures.
c.Ecosystems would become more diverse.
d.Rates of photosynthesis would decrease.

Answers

Answer:

There would be a global rise in temperature.

I'm doing the fresh fruit vs canned fruit experiment and if I prepared the fruit a different way would it effect the gelatin

Answers

Answer:

How the gelatin is prepared can affect the result.

Explanation:

To perform this experiment efficiently, you need to prepare the jelly made from fresh fruit and the jelly made from canned fruit equally. That's because if you modify the ways of preparing the gelatins, they will show many differences and you won't be able to tell if this difference was caused only by the nature of the fruits, or by the way of preparation. Therefore, the way the gelatins were prepared can modify the experiment result and leave it imprecise and unreliable.

The genetic material in living organisms is composed of organic molecules known as


Answers

Answer:

Deoxyribonucleic acid aka DNA

If the xylem in a young tree is damaged, which process is first affected?
A. performing photosynthesis

B. transporting sugar to the roots

C. transporting water to the leaves

D. absorbing water from the soil

Answers

Answer:

[tex]transporting \: water \: to \: the \: leaves.[/tex]

Explanation:

Xylem are cells in the root, stem and leaf that transport water and dissolved mineral salts from the soil to the leaf of plants.

Answer:

C. transporting water to the leaves

Explanation:

If the xylem in a young tree is damaged, the process that is first effected is the transporting of water to the leaves. So, option (C) is the correct answer.

what animal has no tail​

Answers

frog i think lol?!?!! :D

Answer:

Frogs

Explanation:

Frogs don't have tails due to developing innovative aquatic movement.

In genomic imprinting, the expression of a genetic disorder depends on

Answers

Answer:

a

Explanation:

a

what animal has 8 hearts?​

Answers

Answer:

no animal has 8hearts

Explanation:

tho octopus have 3hearts

On a cool morning, Uyen's breath can form a cloud when she breathes out. Which changes of state are most
responsible for Uyen seeing her breath in this way?
O melting
O condensation
O deposition
O sublimation

Answers

condensation!!!!!!!!!!

sumone help me with these type of punnett squares and if i can text sumone so they can help me with other punnett squares that i have there due today

Answers

Text me I can helping really good at them and there easy once you get the hang of it

ANSWER ALL QUESTIONS PLEASE

1. List and describe the five kingdoms of life.
Who developed this system?
What is the basis for the divisions?
Why is it important to the study of biology?

Answers

Answer:

1. animal kingdom: a basic group of natural objects that includes all living and extinct animals compare mineral kingdom, plant kingdom. 2.plant kingdom: Mosses, ferns, conifers, and flowering plants are all members of the plant kingdom. The plant kingdom contains mostly photosynthetic organisms; a few parasitic forms have lost the ability to photosynthesize. The process of photosynthesis uses chlorophyll, which is located in organelles called chloroplasts. 3. Fungi kingdom: Fungi are eukaryotic organisms that include microorganisms such as yeasts, moulds and mushrooms. These organisms are classified under kingdom fungi. The organisms found in Kingdom fungi contain a cell wall and are omnipresent. They are classified as heterotrophs among the living organisms. 4. protist kingdom: The protist kingdom is a classification that includes a diverse group of eukaryotic organisms. Typically, protists reproduce asexually via mitosis and range from unicellular to multicellular organisms. 5. monera kingdom:

Explanation:

2.Carl Linnaeus Carl Linnaeus (1707–1778) laid the foundations for modern biological nomenclature, now regulated by the Nomenclature Codes, in 1735. He distinguished two kingdoms of living things: Regnum Animale ('animal kingdom') and Regnum Vegetabile ('vegetable kingdom', for plants).

3. The largest category in this system is called kingdom, and has five subdivisions: Animalia, Plantae, Fungi, Monera and Protista. All known organisms fall into one of these large categories.

4. The living organisms are divided into five different kingdoms – Protista, Fungi, Plantae, Animalia, and Monera on the basis of their characteristics such as cell structure, mode of nutrition, mode of reproduction and body organization.

Choose the sentence that correctly uses pronouns.
Whom stopped to pay attention to the street performer?
Everyone from children to dogs out for walks stopped to listen to she.
Him enjoyed her unusual style and mix of instruments.
The singer herself wrote that beautiful song.

Answers

[tex]\sf\purple{D.\:The\: singer\: herself \:wrote \:that\: beautiful\: song.\:✅}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

Answer:The singer herself wrote that beautiful song.

Explanation:

I got it right when i took the test

yponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.

Answers

Answer:

D is the correct answer..

this may help you...
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