PLEASE HELP!!! I will mark Brainliest!!! How could you know if two substances were the same based upon 2 chemical reactions?

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Answer 1

Answer:

Observing what the substance looks (color, size, texture) or smells like (odor). Objects can be made up of the same substance, but they differ in the properties of size, mass, and volume.

Explanation:

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.

Answer 2

Answer:

1.Color Change.

2.Production of an odor.

3.Change of Temperature.

4.Evolution of a gas (formation of bubbles)

5.Precipitate (formation of a solid)


Related Questions

plz download the doc and answer its due in 20 mins like bro wth

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Answer:

and how do we know this is not a virus

Explanation:

sorry dude im just saying

Answer:

I agree with the comment above

sorry

Explanation:

need help ASAP
Write a sentence that begins an adjective phrase. Be sure to punctuate it properly!

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I’ll start my commitment to work sooner rather then later.

I need help, ACTUAL ANSWERS PLEASE

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What’s the question?
What’s the question you need help with?

GIVING BRAINLIEST!!!

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Answer:

Pecan trees 1 and 4

Explanation:

1: 1 and 4

2a: With good soil and good parent plants

2b: Heredity

Answer:

Explanation:

1 and 4

With good soil and good parent plants

Heredity

1. What is the affect of increasing the temperature of the water?
2. What happens when you add pollution to the water?
3. Can coral survive bleaching?
4. What is coral?

Answers

Answer:

1. lower levels of dissolved oxygen due to the inverse relationship that exists between dissolved oxygen and temperature

2. water pollution can cause water to become toxic to humans and the environment.

3. corals can survive a bleaching event but they are under more stress and are subject to mortality.

4. corals are marine invertebrates within the class anthozoa of the phylum Cnidaria.

Answer:

The answer to #1 is the water molecules spread out and move faster.

The answer to #4 is a tiny soft-bodied animal that typically lives within a stony skeleton grouped in large colonies

NEED ASAP
What is the affect of increasing the temperature of the water?
What happens when you add pollution to the water?
Can coral survive bleaching?
What is coral?

Answers

Answer:

Explanation:

Increasing temp in water makes it start to boil and evaporate into the atmosphere, in terms of climate change it makes it hard for many organisms to survive because they have to adapt quickly to the waters rapidly rising temperature. When you add pollution to water the water would become contaminated and not be able to support life or be fit for human consumption.

Coral cannot survive bleaching because it harms the coral to the point of its destruction.

Coral is an animal that can grow into big reefs that create large ecosystems for many organisms. They are in the ocean. The biggest coral reef is the great barrier reef in Australia.

For her farm, Susan is interested in increasing the number of chickens that lay the most eggs per week. Many of the chickens on her farm lay 6 eggs a week. A few female chickens (hens) lay as many as 8 eggs per week, while other female chickens only lay 4 eggs per week. Describe what Susan can do to increase the number of eggs produced on her farm.

Answers

Answer:

Susan should probably Quality Feed the chickens.

Explanation:

Quality Feed has a special formula that helps the hens have more. It also makes them big. You don't have to go crazy with some cutting-edge feed that's guaranteed to make your chickens produce eggs the size of a garden gnome

I'm not sure this is the answer that you want so I'm sorry if it isn't

Susan should quality feed the chickens.

Which two changes of state can occur when a substance gains thermal energy A sublimation b depositation c condensation and d vaporization

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Answer:

b

Explanation:

Answer:

A and D

Explanation:

I got it on my test

PLZZZZZ HELP MEEEEEEEE

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Answer:

A negative and unchanged :)

Explanation:

In 3-5 sentences, explain the role of the digestive system in animals, as well as how the system works.

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Answer:

Function. The primary functions of the GI tract include prehension of food and water; mastication, salivation, and swallowing of food; digestion of food and absorption of nutrients; maintenance of fluid and electrolyte balance; and evacuation of waste products

hope it helps

The process of digestion of food in animals or ruminants is known as ruminations. The process includes chewing of food, swallowing, digestion, absorption, and evacuation of food.

The role of the digestive system in animals?

Ruminants are mammals that eat plants. They have 4 chambered stomachs that help digest food. the process of digestion is through the extract of nutrition from the food they consume.

The process includes prehension of food and water; mastication, salivation, and swallowing of food; digestion of food and absorption of nutrients; maintenance of fluid and electrolyte balance; and evacuation of waste products.

Learn more about the digestive system of food in animals here:

https://brainly.com/question/1085956

Need help with science

Answers

Answer:

I got u man

Cu (reactant)= 1

S (reactant)= 1

Fe (product)= 1

O (product)= 4

Explanation:

The answer is quite simple, look at each element and see if there is an attached number at the end. O4= 4 oxygen atoms O3= 3 oxygen atoms. You see the pattern?

Also if there is no such number attached to the element, assume there is one atom.

Cu(reactant) :- 1
S(reactant) :- 1
Fe(reactant) :- 1
O(reactant) :- 4

pros and cons about making aluminum?
HELPPP PLEASEEEE

Answers

Pros: easy to make,Cheap, Flexible

Cons: Cheap and flimsy, easy to break

Which gas is not a significant contributor to greenhouse gasses.?
A. Carbon Dioxide
B. Hydrogen
C. Methane
D. Nitrous oxide

Answers

Answer:

C. Methane.

Explanation:

Methane is a chemical that can kill you. A, B and D all won't kill you because that is a significant contributor to greenhouse gasses.

hope this helped.

Imagine that you and your friend are at the beach. You have your chairs and umbrella set up in the perfect spot near the water so you can jump in to cool off with ease. A few hours into your stay, the water line has managed to creep up closer and closer to your chairs and your things start to get wet! Your friend points up at the Moon and says it is to blame. What does this mean? Write a response in complete sentences. plz someone help!!!!!!!

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Answer: High tides and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. ... When you're not in one of the bulges, you experience a low tide.

im giving brainliest

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Answer:

a

Explanation:

just needed the points, sorry

Answer:

I'm confused what is this?

Explanation:

3.How are climate and weather different?
4.How can you depict annual precipitation at a site location, like a local airport?
5. What is the transformation of water vapor to liquid water droplets in the air?

Answers

Number 3. c.

Number 4. a.

Number 5. d.

Climate is different from the weather. Climate is the long term weather condition and weather is short term atmospheric condition. The annual precipitation is report is depicted as graphical data. Transformation of water vapor to liquid droplets in air is called condensation.

What is climate?

Climate in a region is the long term weather exists there and which will be characteristic for that region. Weather is forecasted for a day or a particular time, reporting the short term atmospheric condition. Climate of a locality depends on the landscape there, local winds etc.

The annual precipitation report determined by the summation of monthly precipitation data and which in turn obtained by the summation daily precipitation for each month and it is depicted graphically to analyse.

The transformation of water vapor to liquid droplets in the air is called condensation. The gaseous molecules of the water vapor condense together to form the liquid droplets.

To find more on climate, refer here:

https://brainly.com/question/10440860

#SPJ6

How do scientist categorize the electromagnetic spectrum?

Into six sections based on frequency.

Into seven sections based on frequency.

Into six sections based on amplitude.

Into seven sections bases on amplitude.

Answers

Answer:

Into seven sections based on frequency

Explanation:

There are 7 em spectrums from radio waves, to infrared waves, to gamma rays listest in order from lowest to highest frequency.

The magnetic field of an object exerts a force on any magnetic object around it.

True
or
False

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i believe the answer is true
that’s isssssd true

what do drumlins tell us about glaciers

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Drumlins are the hills of rock, sand, and gravel formed by moving glaciers
Drumlins are the hills of rock,sand,and gravel formed by moving glaciers. The person above me is correct

If a chromosome folds, how is transcription prevented?

Question 2 options:

The DNA region is easily accessible.


The DNA region is not easily accessible.


The RNA region is not easily accessible.


The RNA has already been made.

Answers

Answer:

The DNA region is not easily accesible.

Explanation:

Can you help me?


words: central peripheral brain spinal cord nerves interprets transmits network muscles organs network

The (1). _____ and (2) _____ comprise the (3). _____ nervous system. On the other hand, (4). _____ nervous system includes network of (5). _____ . The CNS and PNS are closely associated as they constantly work together.

PNS is a (6) _____ of nerves that transmits messages to the CNS. It links CNS to (7). _____ and other (8). _____ . As a command center, CNS (9). _____ messages relayed by the nerves and (10). _____ them to the organs in the body.

Answers

1. brain
2. spinal cord
3. central
4. peripheral
5. nerves
6. network
7. muscles
8. organs
9. interprets
10. transmits

this was sort of a guess so im very sorry if it was wrong !!

Which is NOT needed to START a wildfire.

1. Wind
2. dry debris
3. oxygen
4. unattended campfire

I'm trying to see if I'm correct, I think it's Dry Debris.

Answers

Answer:

you are correct

Explanation:

Answer: no oxygen is the wright answer

Explanation:

Because it only helps to burn a fire it does not make fire

A shorter wavelength does what to the frequency?

Increases the frequency to a lower frequency

Decreases the frequency to a higher frequency

Decreases the frequency to a lower frequency

Increases the frequency to a higher frequency

Answers

Increase the frequency to a higher frequency

Answer:

Increases the frequency to a lower frequency

Explanation:

The magnetic field of an object exerts a force on any magnetic object around it.

True or False

Answers

Answer: True

Explanation: this is true

true it’s just true no explanation needed

Explain The process of Photosynthesis according to the chemical formula: Identify: The reactants(input), the products(outputs), and the energy source. **(Hint: Carbon Dioxide + Water = Glucose + Water)

Answers

Answer: 6CO2 + 6H2O → C6H12O6 + 6O2

Explanation:

The equation for photosynthesis is 6CO2 + 6H2O → C6H12O6 + 6O2.

Many businesses are using infrared thermometers to check customer's temperatures as they enter. What are the benefits of using these thermometers? (Select all that apply.)

They check temperature using thermal energy waves that people give off.

They don't have to touch the person to accurately find their temperature.

They check temperature using UV light that people give off.

They have to touch a person to accurately find their temperature.

Answers

Answer:

Pretty sure B is one of them.

Explanation:

Which electromagnetic wave has a lowest frequency?

ultraviolet light

visible light

microwaves

x-rays

infrared light

Answers

Answer:

microwave

Explanation:

Microwaves as the lowest frequency in the list.

I am pretty sure it is microwaves, like the other answer says

Help Please... giving brainliest..

Answers

1) Well, you need to logically think about which of the pecan trees would be better. Tree 3 may have more clusters but they taste bitter so this is out of the option. So Tree 4 and Tree 1 would be best because they both have rich and buttery tastes and they both have a lot of clusters.

2) Not quite sure about this one, sorry :(

Answer:

1. Pecan 1 and Pecan 4

2. Farmer can take pecan 1 and pecan 4 DNA then combine it to grow a new pecan that produce higher of nut cluster and have rich and buttery Flavored nut.

3. Selective Breeding

Your teacher has set up an investigation for class today. The following materials are on the science lab table.
Piece of unglazed
white porcelain
Iron pyrite
Hematite
Mica
Talc
Halite
Magnetite
Which property of minerals will you be testing for?
A cleavage
B density
C hardness
D streak

Answers

Answer:

Explanation:

c.

Answer:

Your would be C hope this helps...

Explanation:

For example," "however," and "also" are examples of:

conjunctions

introductory words

nouns

adjective

Answers

Answer:

conjunctive adverbs

Explanation:

Some examples of conjunctive adverbs are: accordingly, also, besides, consequently, finally, however, indeed, instead, likewise, meanwhile, moreover, nevertheless, next, otherwise, still, therefore, then, etc.

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