Which is an example of substances reacting chemically?
a. Paper being cut into small pieces
b. Chocolate melting in a pan
c. Flour and sugar mixed together in a bowl
d. Iron and oxygen forming rust

Answers

Answer 1

Answer:

D

Explanation:

Iron and oxygen forming rust.

Answer 2

Answer:

D

Explanation:

Iron and Oxygen forming rust is a chemical reaction. It creates something new and it changes its chemical formula. Both signs of a Chemical Reaction


Related Questions

Cancer is:
uncontrolled division of cells
o differences in reproductive o rates of organisms
O a part of homeostasis

Answers

Answer:

Uncontrolled division of cells

Explanation:

Cancer is when a cell's genetic information messed up and start duplicating itself more than needed

I need help with this;-;(´;ω;`)

Another colonial trade pattern was that of the Triangular Trade.

A. Great Britain
B. West Africa
C. American Colonies
D. France
E. Spain
F. Carbbean Colonies
G. Canada

Answers

Answer:

American Colonies

west africa

spain

france

great britain

Explanation:

If it's just one, then it's this =^oWo^=

in which way are euglena and a volvox diferent​

Answers

Answer:In which way are a euglena and a volvox different? A euglena is an individual cell, while a volvox is a colony of cells. A euglena uses cilia to move, while a volvox uses flagella to move.

Explanation:

Based on the periodic table above, which of the following elements is a solid at standard temperature and pressure?

Answers

Answer:

All of them, except the gases hydrogen, nitrogen, oxygen, fluorine and chlorine, the “noble” gases helium, neon, argon, xenon, krypton and radon, and the liquids bromine and mercury.

Is Plant height an Inherited trait?

Answers

yes inhertited traits

Explanation:

because it depends on the type of plant seed used

Help please!

reiff building corals work together with with photosynthetic algae that live in their tissues. Which type of energy is algae within a coral reef most likely able to use in order to survive
A radiant
B Chemical
C mechanical
D thermal

Answers

A.) radiant Cause yk the sun!

organisms that use sunlight to produce energy-storage molecules are called- a.heterotrophs b. producers composers d. decomposers

Answers

Answer:

i think its B.

Explanation:

which of the following best describes the order of event that leads to a phenotype​

Answers

Answer:

The correct answer is - DNA --> RNA --> amino acid --> protein --> phenotype.

Explanation:

DNA encodes for the RNA and RNA encodes for the proteins in the process of central dogma to produce protein in two processes called transcription and translation to produce protein.

It begins with encoding DNA into RNA (mRNA), known as transcription, which is moved to the ribosome to translate into amino acid chains with help of tRNA and makes a specific protein which could be a form of genotype which express itself to produce a specific trait that makes a particular phenotype of that trait.

The protist kingdom is defined by how these organisms:

reproduce
escape from predators
get food
decompose

Answers

Answer:

it's either reproduce

or decompose

gaucher disease is an inherited disorder in which cells of the body are unable to break down a particular type of lipid, resulting in a buildup of the lipid in some tissues and organs.

Based on the information provided, Gaucher disease results most directly from a defect in the function of which of the following organelles?


The smooth endoplasmic reticulum

The nucleus

The lysosome

The mitochondrion

Answers

Answer: The lysosomes

Explanation: The lysosome contains specific enzymes used to break down a variety of molecules and cellular waste products. A defect in the function of the lysosomal enzymes that are needed to break down lipids is the most direct cause of Gaucher disease.

Which substances will make salt when combined?

Answers

Answer:

Sodium and chlorine will make salt

Answer:

Soda and ammonia or Sodium and chlorine

Explanation:

it makes a little tiny cube or makes it to one of those like ice cream shave thing but as salt and not cold as ice cream.

15. A certain species of snail shows variation in its shell coloring, from solid yellow shells
to brown, banded shells. Birds are the main predator of this snail. A scientist
observes populations of this snail in various habitats. She hypothesizes that the
yellow-shelled snails are better camouflaged in grasslands than the brown-shelled
snails are.
A. Based on the scientist's hypothesis, describe how the percentage of
yellow-shelled snails most likely compares with the percentage of brown-shelled
snails in grasslands.
B. Assuming the scientist's hypothesis is correct, explain how natural selection could
have acted over time to produce the relative percentages of snails you described
in part (A)
C. Explain the reasoning that supports the scientist's plan to study the bird
population sizes.

Answers

I really don’t know. Shshskaklas

The hypothesis that yellow snails are better camouflaged in  grasslands than brown snails is true because yellow shelled one is difficult to catch from the grassland by birds. Thus their percentage will be higher.

The natural selection is for the one who better survives by any strategy. Here the yellow shelled snails are naturally selected to live more by its appearance.

By studying the birds population, scientists can easily understand how much the snails can over come and the percentage of population remaining there.

What is camouflage?

Camouflage is the property exhibited by some animals which to change their color that matches the surroundings so that it will be difficult to see them.

The hypothesis is true based on the camouflage of snails because in grass lands there are both yellow and green grasses and in between these colors yellow shelled snails are difficult to find.

Thus, their percentage will be higher in grasslands than that of brown shelled snail.

Nature selection of living is in such a way that the fittest is survived. Here, the yellow-shelled snails are hard to caught by birds because of their appearance and their population will be higher.

It is said that birds are the main predators of snails. Therefore, by studying the birds population over the area they can study the decrease in population of snails and the chances for their survivals.

To find more about camouflage, refer the link below:

https://brainly.com/question/10913375

#SPJ2

This is my GCSC revision! IN DETAIL PLS describe how microbes reproduce!!

Answers

Explanation:

Bacteria grow to a fixed size and then reproduce through binary fission which a form of asexual reproduction. Under optimal conditions, bacteria can grow and divide extremely rapidly. Different kinds of bacteria need different amounts of oxygen to survive. that's all I know sorry :(

?
are to proteins
pearls are to a necklace

Answers

eggs/ meat/ poultry

Answer:

the answer should be amino acids i think

in certain dogs, large tails (L) and small tails (S) follow incomplete dominance.
Cross a long tail dog and a small tail dog. What is the genotype of the offspring?
What chance is there of having a dog with small tails? **

Answers

Answer:

The genotype could be any of the the the two traits because they are 50/50 because there is no dominant trait. And the chance is 50/50.

Explanation:

50/50
there is no complete dominance from either trait.

this is for kealani57 only thx :-)

Answers

hivvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Fill in the blank:
1. A calorie is a unit of____
2. Cells use the energy stored in chemical bonds of foods to produce compounds that directly
power the cell's activities, such as_____
3. The equation that summarizes cellular respiration, using chemical formulas, is____
4. If cellular respiration took place in just one step, most of the____
would be lost in
the form of light and____
5. Cellular respiration begins with a pathway called______
which takes place in the_____
the cell.
6. The equation that summarizes photosynthesis, using chemical formulas, is________
and electron
7. Cellular respiration continues in the_____
of the cell with the______
transport chain
8. The pathways of cellular respiration that require oxygen are said to be______
Pathways that do not require oxygen are said to be______

Answers

1. A calorie is a unit of energy.

2. ... such as ATP that power the activities of the cell.

3. Formula = 6O2 + C6H12O6 -----> 6CO2 + 6H2O + Energy

4. Energy would be lost in the form of light and heat.

5. glycolysis and it takes place in the cytoplasm.

6. 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

7. electron transport chain.

8. Glycolysis.

Thank Me Later~


Filling in the blanks in your questions

Calorie is a unit of Energy Energy stored in chemical bonds are used by compounds to power cell activities like ATP Equation summarizing cellular respiration is ; 6O₂ + C₆H₁₂O₆ -----> 6CO₂ + 6H₂O + EnergyMost of the Energy would be lost in the form of light and Heat Cellular respiration begins with Glycolysis which takes place in Cytoplasm Equation summarizing photosynthesis is ; 6CO₂ + 6H₂0 + (energy) -----> C₆H₁₂O₆ + 6O₂. Cellular respiration continues in the mitochondria of the cell with the Electron transport chain.Paths requiring oxygen in cellular respiration are Aerobic . Paths that do not require oxygen are  Anaerobic

Cellular respiration is made of three(3) metabolic pathways which are  grouped into two categories ( Aerobic and Anaerobic ). The metabolic pathways are : glycolysis, Citric cycle, and electron transport chain.

Glycolysis is an anaerobic process because it does not require oxygen while The citric cycle and glycolysis are aerobic processes which requires oxygen. while Calorie is simply a unit of energy  

Hence we can conclude that the answers to your question are as stated above.

Learn more : https://brainly.com/question/1404493

Which accurately describes the relationship between nutrients and life-forms in an estuary?
A As nutrients increase, the number of life-forms stays the same.

B As nutrients increase, the number of life-forms increases.

C As nutrients decrease, the number of life-forms stays the same.

D As nutrients decrease, the number of life-forms stays the same.

Answers

Answer:

C and D have the same answer?? wdym

Explanation:

BRain liest for whoever does both thanks:D!

Answers

Answer:

Task 2: The Circulatory system pumps blood and oxygen to all of the organs in your body to keep them working, The respiratory system takes in oxygen and the circulatory system takes that oxygen to all parts of the body. The circulatory system also takes nutrients from food that is digested by the digestive system to all parts of the body to keep them working as well.

Task 3: The Endocrine system is important to controlling the human body but for these reasons I believe that the nervous system is more important. I think that the Nervous system is more important to controlling functions and processes in the human body because without the nervous system messages from and to your brain can not be relayed. Without the nervous system you would not be able to move or feel pain when you have been injured.

What would happen to an animal cell with an internal salt concentration of 70% if it were placed in a salt solution with a concentration of 20%? Why?

Answers

Answer:

It will swell and eventually burst because water from the environment is flowing into the cell

Explanation:

This question is describing OSMOSIS, which is the movement of water from a region of high concentration to a region of low concentration across a semi-permeable membrane. The osmotic process is facilitated by the formation of an OSMOTIC GRADIENT i.e. difference in concentration between the two sides of the membrane.

In this case, an animal cell containing an internal salt concentration of 70% (hypertonic) were placed in a salt solution with a concentration of 20% (hypotonic), OSMOSIS will occur in the sense that water will move from where it is more concentrated (salt solution) into where it is less concentrated (animal cell), hence, the animal cell will SWELL AND EVENTUALLY BURST.

HELP NOW

I’m struggling

Answers

There is no question 453

Answer:

blue

Explanation:

i hope this help

Which is the independent variable in this graph?

population
straight lines
years
United States

Answers

years would be the independent variable because any sort of time is usually the independent variable.

I am made of many folds, I package molecules to leave the cell. I am the UPS guy who ships things out. What am I?

Answers

Answer:

golgi apparatus

Explanation:

the golgi apparatus packages molecules to leave the call

1. A gene is larger than a chromosome.
1 point
True
False

Answers

It depends , therefore yes
True , although it can depend

which human activity can have the greatest positive effect on the global climate change by helping to reduce the amount of carbon dioxide in the atmosphere?​

Answers

Answer: I cant see D but the answer is B

Recycling plastics to manufacture materials. Therefore, option (B) is correct.

Transitioning to renewable energy sources offers the greatest potential to reduce CO2 emissions and mitigate climate change globally. Solar, wind, and hydropower can greatly cut CO2 emissions from electricity generation. Building, transportation, and industrial energy efficiency can reduce carbon emissions further.

Recycling plastics reduces climate change. Recycling plastic waste reduces energy-intensive and CO2-emitting  plastic production. Recycling plastic reduces demand for fossil fuel-derived raw materials used in plastic manufacturing, indirectly reducing carbon emissions.

Learn more about global climate change, here:

https://brainly.com/question/27919422

#SPJ2

Do all the cells that make up the sequoia tree have the same genetic material (same instructions on their DNA)?

Answers

Answer:

yes

Explanation:

because the only thing that is changing is the number of cells, mitosis causes cells to split and multiply forming organisms

How do catalysts affect a chemical reaction?
A. increase the activation energy
B.provide activation energy
C. lower activation energy
D. lose activation energy

Answers

Answer:

C: Lowering activation energy

Explanation:

A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction.

What does the stability of an atom mean

Answers

Explanation:Es cuando la interacción nuclear que experimentan los protones y los neutrones son mayores que la fuerza de repulsión eléctrica

de los protones

Es estable cuando existe un equilibrio entre las fuerzas que actúan, o las fuerzas atractivas son mayores que las repulsivas

plants algae and some bacteria use the energy of sunlight in the process of ?

Answers

Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy

Hope this helped:)

Explain how transmission,
absorption, and reflection
cause objects to be
transparent, translucent, or
opaque?

Answers

Answer:

Transparency is caused by the transmission of light waves. If the vibrational energy of a light wave is passed through the object, then the object appears clear, or transparent. If the energy only causes vibrations in the surface before reflecting off the object, then the object appears opaque.

Other Questions
I'll give brainly thing acrostico con la palabra socrate helppppppppppppppp plssssssssssssssss which phase describes the mass of an ice cube Pls help with this 4 quarts per day. Express this rate of flow in liters per week. Perjudican la salud de los trabajadores y trabajadoras, causando estrs y a largo plazo enfermedades cardiovasculares, respiratorias, inmunitarias, gastrointestinales, dermatolgicas, endocrinolgicas, musculoesquelticas y mentales. After the collapse of the Mayan culture only one language was spoken in Honduras.True or false? Beth pulls a wagon up a hill in 40 seconds. Her friend Adeline pulls the same wagon up the same hill in 30 seconds. Which of the following statements is true?A. Beth accomplished more work than Adeline.B. Adeline accomplished more work than Beth.C. Beth had a greater power output than Adeline.D. Adeline had a greater power output than Beth. The table shows the number of toys sold at Penelope's Toys and Games store in different years. Find the rate of change in the number of toys sold for each time interval. During which time interval did the number of toys sold increase at the greatest rate? Catherine is at the Supermarket, and knows that she is 50 yards from her school. The map on her phone shows that the school is \large \frac{3}{4} inch from her current location. If Catherine's current location is 3 inches from home on the same map, how far is Catherine from her home? a 112.5 yards b 200 yards c 250.5 yards d 150 yards Which food is better?Toast?Jelly?Hint: Don't choose the other... Living with parents: The Pew Research Center reported that 36% of American Millennials (adults ages 18-31) stll live at home with their parents. A group of students wants to conduct a study to determine whether this result is true for students at their campus. They survey 300 randomly selected students at their campus and determine that 43% of them live at home with their parents. With this data, they test the following hypotheses at the 5% significance level. The P-value is 0.006. H0: Of Millennial students at their campus, 36% live at home with their parents. Ha: More than 36% of Millennial students at their campus live at home with their parents What assumption about the sample underlies the hypothesis test? A. The sample comes from a population of Millennial students at their campus where 36% still live at home with their parents. B. The sample comes from a population of Millennial students at their campus where 43% still live at home with their parents. C. The sample comes from a population of American Millennial students at their campus where 36% still live at home with their parents. D. The sample comes from a population of American Millennial students at their campus where 43% still live at home with their parents. An acute angle in one right triangle has the same measure as an acute angle in another right triangle. Name the theorem or postulate that is the most direct way to prove the triangles similar. It has 5 questions so I'm giving more points ill also mark brainliest (or what ever its called) if its not a random answer :P PLZ HELP i have an hour left The pupil of a cat's eye narrows to a slit width of 0.5 mm in daylight. What is the angular resolution of the cat's eye in daylight (wavelength = 500 nm)?A. 0.01 radsB. 10-5 radsC. 10-3 radsD. 10-4 rads so my question is that i have -2(p+3)+4p but i dont know what to do Ustedes se estn ___los dientes ahora porque se van a acostar.O(A) cepillanO(B) cepillar(C) cepillndoseO (D) cepillando Write a linear function f with f(2)=2 and f(1)=1.