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

Answers

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

When was Gorge Washington born? first one to answer will get a brainliest!

Answers

Answer: February 22, 1732

Explanation:

George Washington was born on February 22, 1732.

Correct me if it is incorrect.

List the characteristics of life that plants and animals in a food web share

Answers

Answer:They are movement, nutrition, respiration, sensitivity, reproduction, excretion,and growth.

Explanation:

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus, movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are  the characteristics of life that plants and animals in a food web share.

What is matter?

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. Movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are  the characteristics of life that plants and animals in a food web share.

Thus, movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are  the characteristics of life that plants and animals in a food web share.

To learn more about matter, here:

https://brainly.com/question/4562319

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What class of lever is shown below?









Question 4 options:

First Class Lever


Second Class Lever


Third Class Lever


Fourth Class Lever

Answers

4                                          

I don't want to say anything else

Second class lever hope this helps

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:

PLEASE ANSWER ASAP

What is the best description of cirrus clouds?



High level (altitude) clouds that are white and wispy like horses tails.


Low level (altitude) clouds that are wispy and made of ice crystals.


Middle level (altitude) clouds that are thick and spread out like a blanket.


Middle level (altitude) clouds that are white and puffy with flat bottoms.

Question 6 (1 point)
Which processes of the water cycle involve the movement of water in the liquid state?

Question 6 options:

evaporation and precipitation


surface runoff and condensation


precipitation and surface runoff


condensation and evaporation



Question 7
What is the name for raindrops that freeze as they fall through the air?



dew


sleet


rain


hail

Question 8
The gas that is most abundant in the atmosphere is ________.



oxygen


nitrogen


water vapor


trace gases

Question 9
In which layer is the ozone that absorbs harmful UV radiation waves?



mesophere


stratosphere


thermosphere


troposphere

Question 10
Air pressure increases as altitude (elevation) ______________?

Question 10 options:

decreases


increases


stays the same

Answers

Answer:

Low level (altitude) clouds that are wispy and made of ice crystals.

precipitation and surface runoff

Hail

Nitrogen

Stratosphere

Decreases

Please Award Brainliest!

Answer: Low level (altitude) clouds that are wispy and made of ice crystals.

precipitation and surface runoff

Hail

Nitrogen

Stratosphere

Decreases

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.

help plsss i need it

Answers

Answer:

A

Explanation:

A would be the best place due to the fact that it is the farthest distance from the fulcrum. Since the sheep (or the load) is at the very end of the pole, the effort (force) would need to also be at the end of it to lift the sheep the easiest.

The answer is Point A

What would happen to the gravity between two objects if the mass of one object decreased?
1. gravity would increase
2.gravity would decrease
3. wouldn't change
PLz help

Answers

gravity wouldn’t change

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

I need help, ACTUAL ANSWERS PLEASE

Answers

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

What are two results of the uneven heating of Earth's surface?

Answers

the uneven heating results in some of the atmosphere to be warmer than other parts and changes in volume and pressure which result in updrafts and can cause thunderstorms and other violent weather

tell me if its wrong !!

What characteristic of an element determines how its atoms can bond with other atoms?

A. its total number of electrons
B. its number of valence electrons
C. how many low-energy-level electrons it has
D. how many protons and neutrons it has

50 brainly points!

Answers

Answer:

The answer is A

Explanation:

its total number of electrons

what do drumlins tell us about glaciers

Answers

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

HELPPPPPPP :> WHY DO I NEED 20 WORDS

Answers

The answer is C
Osmosis is a special case of diffusion involving water. In Osmosis, water molecules move from areas of where there’s a higher amount of water (high concentration) concentration to areas where there’s less water (lower concentration)

pros and cons about making aluminum?
HELPPP PLEASEEEE

Answers

Pros: easy to make,Cheap, Flexible

Cons: Cheap and flimsy, easy to break

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:

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

Answers

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:

PLZ HELP ASAP
Pretend you are teaching a friend about the differences between plant and animals cells. Your friend isn’t even sure they know there is a difference between the types of cells.) Write a narrative of what you would say to your friend to explain how the plant and animal cells are different from each other and why these differences are important.

Answers

Answer:

plant cells and animal cell have similaritys but also haev diffrences.

Explanation:

one example of a diffrence bettwen them is that plants have a cell wall but a animal doesnt even tho they are both living organizoums

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

Answers

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

can someone help me with this science assignment

Answers

1. NA = Sodium, NA was the chemicals symbols for the element would be NA because in Latin it is natrium for natron in which is sodium in English, Sodium was created by Humphry Davy in the year of 1807. Element name Sodium, Chemical symbol NA atomic number, 11 Atomic mass 23.

2. AG = Sliver, AG was the chemicals symbols for the element would be AG because in Latin it is argentum in which in English means bright and also sliver.  Element name Sliver Chemical symbol AG atomic number, 47 Atomic mass 108.        

1.Na-Sodium Na is derived from its Latin name Natrium
2.Au-Gold Au is derived from its Latin name Aurum
3Pb-Lead Pb is derived from its Latin name Plumbum

I need help with this

Answers

Answer:

The mass and physical structure of the body has changed.

The amount of molecules has changed and formed a new substance.

Explanation:

Hope that I helped you!

NEED HELP ASAP!!!!!!!!! PLEASE ANSWER IN 10 minutes or under
What are the two possible benefits of the new plastic bag?

Answers

Answer:

The new bag helps food last longer. Less food is wasted, and more money is saved.

Explanation:

PLATO

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.

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.

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

True
or
False

Answers

i believe the answer is true
that’s isssssd true

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!!!!!!!

Answers

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.

HELP ASAP. GIVING BRAINLIEST

Answers

Answer:

1) Pecan tree 1 and Pecan tree 4

2) I don't know

Explanation:

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:

GIVING BRAINLIEST!!!

Answers

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

ASAP i need a picture of Pangaea

Answers

Answer: I hope this helps!

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