If you were making observations of someone mixing two substances together, how would you know if a chemical reaction took place?

Answers

Answer 1

if you were making an observation of two substances, The five conditions of chemical change would be color chage, formation of a precipitate, formation of a gas, odor change, temperature change. i hope this helps


Related Questions

The diagram represents a specialized cell located in the root of a plant. The arrows in the diagram indicate the movement of molecules of oxygen and water into the cell.Which choice correctly identifies the process responsible for the movement of each type of molecule represented in the diagram? *

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Answer:

where is the photo ??

Explanation:

...

WILL GIVE BRAINLIEST

Answers

Answer:

2. skin/integument

3. endocrine system

4. respiratory system

5. Excretory system

6. immune system

7. digestive system

8. musculoskeletal system

9. reproductive system

10. circulatory system

11. skeletal system

12. nervous system

Explanation:

The population change equation is Population Change = (Natality - Mortality) + (Immigration - Emigration). Which equation would create stable population?(1 point)

natality + immigration = mortality + emigration

natality + immigration = mortality - emigration

natality + mortality = immigration + emigration

natality - immigration = mortality + emigration

Answers

Question: "The population change equation is Population Change = (Natality - Mortality) + (Immigration - Emigration). Which equation would create stable population?"

Answer: "The equation that would best create a stable population would be natality - mortality = immigration - emigration. Hope this helps!"

Population Change = (Natality - Mortality) + (Immigration - Emigration), with the best equation being "natality + immigration = mortality + emigration," with natality being the birth rate and mortality being the death rate (first equation).

What is the significance of the population change?

Population change is significant as it explains the growth of the population and shows the pattern of the growth and the stability of the population. It represents a population that is in a state of balance and this balance is only achieved in the population when the number of people being born (natality) is equal to the number of people dying (mortality) and the number of people entering the population (immigration) is equal to the number of people leaving the population (emigration).

Hence, population Change = (Natality - Mortality) + (Immigration - Emigration), with the best equation being "natality + immigration = mortality + emigration," with natality being the birth rate and mortality being the death rate (first equation).

Learn more about the population change here.

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How are insulin and estrogen similar in their functions for an organism?
A.Both store information in the organism.
B.Both stimulate another organ to perform a function,
C.Both support the structure of the organism.
D.Both store energy for the organism.
Remember to read questi
tables and answer choice
carefully If necessary, rea
them more than once to
sure you understand what
question is asking

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The answer D sorry if I’m wrong

which resource is nonrenewable
A.soybeans
B.sunlight
C .copper
D . cattle

Answers

Answer:

copper

Explanation:

Copper is your answer because it is nonrenewble

Hope this helps u:)

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URGENT!!!

A nerve cell and a liver cell in the same dog make different proteins. Which of these statements best explains why different cells have make proteins? *


A) The different cells in an organism have different genes.


B) Each cell transcribes (reads) only the genes the cells need


C) The different cells in an organism all transcribe (read) the same genes, but their ribosomes make different proteins from them.


D) Each cell in an organism produces the same proteins, but the ones that aren't needed are immediately digested.

Answers

Answer:

C

Explanation:

The different cells in an organism all transcribe (read) the same genes, but their ribosomes make different proteins from them.

Original DNA strand: ATT GAG CC Mutated DNA strand: ATT GAG CT What type of mutation does the example above demonstrate?

Original DNA strand: ATT TGA GCC
Mutated DNA strand: ATT TGA GAC C
What type of mutation does the example abo w demonstrate?​

Answers

the first mutation is substitution and the second is deletion

The examples above demonstrate a substitution mutation.

A substitution mutation is a type of mutation that occurs when one nucleotide in the DNA sequence is replaced by another nucleotide. In the first example, the original DNA strand has the sequence "ATT GAG CC," but in the mutated DNA strand, the nucleotide "C" is replaced with "T" at the third position, resulting in "ATT GAG CT." This single nucleotide substitution is a specific type of substitution mutation known as a missense mutation.

In the second example, the original DNA strand has the sequence "ATT TGA GCC," but in the mutated DNA strand, the nucleotide "C" is replaced with "A" at the sixth position, resulting in "ATT TGA GAC C." Again, this is a substitution mutation where a single nucleotide is replaced by another.

Substitution mutations can have different effects on the resulting protein. In some cases, the change in the DNA sequence may lead to the production of a different amino acid during translation, which can alter the structure and function of the protein. Depending on the specific location and nature of the substitution, it can have varying impacts on the phenotype and may or may not result in a noticeable change in the organism.

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What is the difference between a biome and a microhabitat

Answers

A micro habitat is small habitat that exists on a normal habitat, where as the biome describes the type of area on a much larger scale. for example; a desert is a biome and in that desert there is an area where grass grows and lot of mice live in that area (habitat), and there is a part of that habitat where one of the mice feeds (micro habitat). a micro habitat can also exist on another animal (parasite).

The difference between a biome and a microhabitat are as follow:

Microhabitat: A microhabitat is a small specialized habitat within a larger habitat. An example of a microhabitat is a caterpillar snacking on leaves that have fallen from a walnut tree in the orchard.

Biome: A biome is a large region of Earth that has a certain climate and certain types of living things. Major biomes include tundra, forests, grasslands, and deserts.

What is a habitat?

A habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive.

Hence, microhabitat is a small specialized habitat whereas biome is a large region.

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Researchers have been able to study the pathway of a secreted protein by tagging it with a fluorescent marker. Using this method, you would observe Fluorescence moving from the ER to which organelle

Answers

Answer:

I would observe fluorescence moving from the ER to the Golgi apparatus.  

Explanation:

Once the protein leaves the endoplasmatic reticulum (ER), it is in a vesicle that fuses with the Golgi apparatus. The Golgi modifies and packs the protein to send it to its destination. In other words, the Golgi complex is the place where proteins go to be functional and be given a place either inside or outside the cell.

Which of the following is a function of the cell membrane?
A. stores water, salt, proteins, and carbohydrates
B. helps maintain homeostasis by keeping the cell wall in place.
C. breaks down lipids, carbohydrates, and proteins from foods.
D. helps maintain homeostasis as materials enter and leave the cell​

Answers

D. Cell membranes are generally semi-permeable, which means that they allow some materials in (the ones they need to function) and out. Membranes also block materials that the cell doesn’t want or need from entering. Homeostasis essentially means “sweet spot” (not literally just a way to remember it). Hope this helps!

What did early organisms release into the air

Answers

Answer:oxygen

Explanation:

It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere

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ANSWER THE QUESTION WHERE IT SAYS "APPLY IT"

Answers

Answer:

Having a cold makes me feel like i cant breath because my nose is stuffy, and  i dont want to talk because my throat is itchy.  I also feel very tired, like i haven't slept in days. A cold messes with your sense of smell a lot.

Explanation:

hope this helps :)

yes, having a cold made me feel very unmotivated to do anything it also made me feel tired and irritated. Old affected my body because it made me tired and it made my head hurt, it also made my nose stuffy. this could also trigger your breathing.

as distance between two objects increase (gets bigger) the pull of gravity..

A. decreases

B. stays the same

C. increases

i’ll mark u as brainliest helpppp

Answers

Answer:

 A. decreases

Explanation:

Since gravitationalforce is inversely proprtional to the distance by the formular F = GM1M2/r^2.

Is the genetic material is made of protein?

Answers

NOOOO! Don’t believe those 1900s lies! The genetic material of life is DNA!

For a certain chemical reaction, the bond energy of the reactants is 43 kJ, and
35 kJ of energy is released. For energy to be conserved, what is the bond
energy of the products?
A. 18 kJ
B. 78 kJ
C. 8 kJ
D. 88 kJ

Answers

Answer:

the answer is C. 8KJ

Explanation:

please help, I really need a good grade I'm currently failing. ​

Answers

Answer:

B

Explanation:

all motion requires an opposite force

Indicate which of the statement below refer to : Sexual reproduction or Asexual reproduction

1. The characteristics of the offspring are like to those of the parents.

2. The offspring is a combination of the traits of both parents.

3. Sex cells are involved in the production of offspring.

4. New individuals from a single parent are reproduced very fast.

5. The cells of the offspring have similar genes as the cells of the parent.

Note: Answer it correctly, Nonsense answer = report. :-)​

Answers

Answer:

Its below in the explanation

Explanation:

1. Refers to Asexual Reproduction

2. Sexual reproduction

3.Sexual reproduction

4.Asexual Reproduction

5.Sexual reproduction

the first one was a bit unclear but im pretty sure it right.

Sorry if im wrong. Hope this helps!

how does mitosis take place in the digestive system, discuss each phase of Pmat aswell (please help)

Answers

Answer:

Intestinal cells have to be replaced as they wear out; yeast cells need to ... These phases occur in strict sequential order, and cytokinesis

Explanation:

PMAT= prophase, metaphase, anaphase, telophase.

In an ecosystem, _______ are producers because they make their own food. A. plants B. herbivores C. omnivores D. animals

Answers

Answer: A. plants

Explanation:

 Plants are producers. They make their own food, which creates energy for them to grow, reproduce and survive.

Which two statements in the table are true for plant cells and FALSE for animal cells?
1 They use the fuel stored in food for energy.
2 They use energy, carbon dioxide, and water.
3 They need nutrients but make their own food.
4 They need water and many kinds of nutrients
0
A. 4 and 1
o
B. 1 and 2
O
C. 3 and 4
D. 2 and 3

Answers

letter d: 2 and 3 hope this helps

73+28+72718-838199281

suggest why a baby born without any mitochondria will have difficulties growing

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Answer:

or our bodies the conversion from food energy to ATP happens in mitochondria. If your mitochondria are not working properly then you are less able to convert food into ATP. For cells that require a lot of ATP, for example your muscles, this is a problem and they may become weaker and get tired faster.

Explanation:

which bonds form between polar molecules

Answers

Answer:

For polar molecules, the electrons shared in a covalent bond tend to gather on one side of the molecule while the other side becomes positively charged.

Explanation:

answer: hydrogen bonds

explanation: polar molecules that include a hydrogen atom can form electrostatic bonds

Jordan is asked to draw an image of where he might find igneous rocks. Jordan can figure out where this rock would be found by learning how it is formed. Which of the following will mostly likely cause the formation of igneous rock due to tectonic plate movement?

Answers

I can’t see your answer choices, but igneous rocks are made from cooled lava or magma. This is why these rocks are so brittle and grainy. I’ve attached a helpful image to better explain! Good luck!!!

Please answer I’ll give brainliest. I need this for a quiz Please ❤️

Answers

B makes the most sense to me because there would be more food for the carnivores within the population.

U
Question 2
4 pts
(04.04 LC)
Active transport requires chemical energy.
True
O False
4 pts
Question 3

Answers

Answer:

The answer is true

Explanation:

This process is called passive transport or facilitated diffusion, and does not require energy. The solute can move "uphill," from regions of lower to higher concentration. This process is called active transport, and requires some form of chemical energy.

What are the two types of seed plants?

Answers

Answer:

The gymnosperms and the angiosperms

the gymnosperms and the angiosperms

Charles Darwin took a five-year voyage around the world observing different
organisms and their adaptations. Darwin concluded that change was happening ever
so slightly in organisms, until eventually leading to a new species. What form of evolution was Darwin describing?

Answers

Answer:

Natural selection.

Explanation:

Natural selection is when organisms who are most adapted to their environment survive and pass on their genes while those with "unfit" genes die and don't get the chance to reproduce! This slowly creates a population that is most well suited to their habitat. Hope this helps again LOL! :)

1. What does each unit on the y-axis represent?
Please please help

Answers

i’m pretty sure it is A

Answer:

A

Explanation:

The y axis is the vertical area and we can see 0-250-500- so on

as well as the small chunk of text saying popula-

Which of the following events occurs directly AFTER a DNA molecule is unzipped?

Answers

Answer:

DNA replication occurs through the help of several enzymes. These enzymes "unzip" DNA molecules by breaking the hydrogen bonds that hold the two strands together. Each strand then serves as a template for a new complementary strand to be created. Complementary bases attach to one another (A-T and C-G).

Explanation:

Which of the following events occurs directly after RNA polymerase recognizes the transcription start site of a gene? the DNA strand begins to unwind, separating the two strands.

:D Hope it is helpful

What benefit is there for organisms whose fruit grows heavy and falls from trees onto the
ground? *

Answers

Answer:

Yes, the 2nd answer is correct

Explanation:

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