Answer:
b
Explanation:
There are two types of mixture, one is homogeneous mixture and other is heterogeneous mixture. Therefore, the correct option is option B that is the sand and gravel can be separated with a sieve.
What is mixture?When two or more compounds are combined but each ingredient retains its chemical identity, the result is referred to as a mixture. In other words, there is no chemical interaction between the parts of a combination. According to how consistent they are and how well the components' particle sizes match up, mixtures are categorized.
Sand and gravel in a mixture have the same properties as sand and gravel when they are not mixed. Since gravel is bigger than sand, the sand and gravel can be separated with a sieve.
Therefore, the correct option is option B.
To know more about mixture, here:
https://brainly.com/question/12160179
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Refer to the question above to help answer this question. If the students were to redo their experiment with the water and the antiacid tablet, what would you recommend they do in order to show that the mass was conserved in that chemical reaction.
a. They should put a cover on the beaker so nothing can escape during the experiment.
b. They should use two antiacid tablets instead of one.
c. They should use more water.
d. They should get a new scale and double check their measurements.
Answer:
hrsseWFEwdS
Explanation:
What holds everything in place in the universe?
Answer:
Gravity
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.
Explanation:
hope this helps
I need help with a DNA research paper
Answer:
XD ok wheres the paper
Explanation:
PLEASE ANSWER! I NEED A DIAGRAM ON HOW TO CREATE WATER CONDITIONS THIS IS SCIENCE BTW
Answer:
Ok so tell me what you want to write and i will do it for you.
Explanation:
Answer:
H-O-H
Explanation:
H2O = Water
meaning two H molecules, and one O molecule
PLEASE HELP THESE ARE MY LAST 3 QUESTIONS LEFT AND IM HAVING TROUBLE WITH THEM
1. CH18C20H15CHCO2 How many atoms of each element are in one molecule of cardenolides?
2.How many atoms are in mercury (I) phospate? The chemical formula is (Hg2)3(PO4)2
3.The burning of hexane is shown in the following chemical equation. How many oxygens are in the products to the right of the arrow? 2C6H14 + 19O2 → 12CO2 + 14H2O + heat
Answer:
1)
2)Hg2 3 po4 2
Mercury(I) Phosphate (Hg2)3(PO4)2 Molecular Weight
3)2C6H14 + 19O2 → 12CO2 + 14H2O + heat
Explanation:
i dont know the 1st one i ggoles the 2nd one and it gave me this, hope it helps
PLEASE HELP QUICK!!!!
Answer:
Done this assignment :)
Hope it helps!
How do atoms and molecules of elements and compounds combine in chemical reactions?
Pls help it is due in 20 mins
Answer:
A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons
Answer:
Explanation:
When 2 or more elements combine a compound stats to form. These are held together with a very strong chemical bond (which can vary depends on the elements). This chemical bond makes all of these little ions come to it and thats how a chemical reaction is made.
- Hope you get an A
oh also if you can can I get Brainlist
Help Me Pls. I need to know this for my exam
Answer: Look up the answers to a Periodiperiodic table
Explanation: I will link pictures
Please construct a R.A.C.E. explanation for the prompt below. How do mutations to DNA affect an organism? Name all of the possible ways that an organism could be affected by the mutation and provide examples
Answer:
Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.
Calculate the mass of an object that has a density of 20 g/mL and a volume of 5 mL.
Answer:
4
Explanation:
density= mass/volume
Answer:
100kg
Explanation:
[tex]density= mass/volume[/tex]
using this formula you can re arrange the equation my moving the volume onto the opposite side
giving you this formula : mass= density x volume
in doing so you can calculate the mass of the object by extracting the relevant information of the question
density=20g/ml
volume=5ml
mass = density x volume
=20 x 5
= 100
Please help me I don't know these.
Answer:
Add x on all of them I just took what ur taking rn !!!!!
Explanation:
because the other guy said the same thing
Please help I don't want to watch a video about the states of matter again. Its science
Matter can change phases by changing the amount of _____________________.
Energy does / does not change the phase of matter.
(Make the correct answer red -- or, erase the wrong answer.)
Absolute Zero is when energy / molecules stop moving.
(Make the correct answer red -- or, erase the wrong answer.)
You can use _______________ to change a liquid into a gas.
A soda is liquid that contains _________________ gas to make it bubble and fizz.
A gas and a(n) _________________ will take the shape of a container.
The heating and cooling of molecules will make ______________ change their state of matter.
To change a gas to a liquid, you need to increase / decrease the amount of heat energy. (Make the correct answer red -- or, erase the wrong answer.)
To change a solid to a liquid, you need to increase / decrease the amount of heat energy. (Make the correct answer red -- or, erase the wrong answer.)
Changing a _________________ to a liquid to a gas is changing the phase of matter.
Answer: 1.mass i think thats all know
Explanation:
sorry
Answer:
1: Heat
2: Evaporation is the process of a liquid turning into its gaseous form. When a liquid hits its boiling point, it will evaporate and turn into gas. It can release vapor as well
3:carbon dioxide (a gas)
4:Liquid
5:Elements
Explanation:
Hope this helps!!!
GOOD LUCK !!!!
let me know if wrong
Through his investigation, Nathanial identified when equal forces are applied to an object, the motion of the object does not change. He started a data table to record the evidence from his investigation. Which further evidence can Nathanial use to support his findings?
67 N in row one and 110 N in row two
120 N in row one and 67 N in row two
115 N in row one and 65 N in row two
100 N in row one and 65 N in row two
Answer:
A is the answer
Explanation:
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
What are the five natural agents of erosion? What is the driving force behind all of these agents of erosion? (site 1)
Answer:
erosion agents- wind, water, ice, waves and gravity
Explanation:
all forces of the agents of erosion is gravity
Which of the following statements accurately describes a pedigree chart?
1. A pedigree chart is used to predict the genotype of offspring.
2. A pedigree chart tracks inherited traits from parents to offspring.
3. A pedigree chart predicts the percentage of offspring that will have a specific trait.
4. A pedigree chart identifies the phenotype of the organism.
Answer:
Two is your answer...
Explanation:
Arrange carbon, phosphorus and sulfur in order of reactivity to write their reaction with oxygen.
Answer:
Solid phosphorus reacts with gaseous oxygen to produce solid diphosphorus pentaoxide. ... Methanol burns in oxygen to produce carbon dioxide gas and water vapor.
Explanation:
Solid phosphorus reacts with gaseous oxygen to produce solid diphosphorus pentaoxide. ... Methanol burns in oxygen to produce carbon dioxide gas and water vapor.
3. Is Pangaea the only “supercontinent” that scientists think has existed?
Answer: No
Explanation:
Pangea is the most RECENT supercontinent. However, scientists believe there have been many more that have come before it
Answer:
the first 1 :l
Explanation:
Hi can someone plz help me!! I’m behind on this and I really need help on it. I will try to mark as brainliest
You just need to do what it says. Build the model or use some things as substitutes if you are missing an ingredient and write down what you identified.
There isn't really much better help I could give, sorry. I hope this helps.
Which of the following is a true statement about waves?
A.
Waves can transfer energy when they interact with matter.
B.
Waves are never affected when they interact with matter.
C.
All waves require a medium through which they can travel.
D.
All waves travel longitudinally and compressionally at the same time.
Answer:
A.
Explanation:Waves can transfer energy when they interact with matter.
name and the number of atoms of calium oxide in one molecule of the compound for
pls help I am dead if I dont do it for 2 min
Answer:
1 calcium, 2 oxygen and 2 hydrogen makes for a total of 5 atoms in 1 molecule.
Explanation:
GIVING BRAINIEST!!! please help
A tall pea plant (Tt) is crossbred with another tall pea plant (Tt). The following Punnett square shows the separated alleles for two pea plants.
Which of the following shows the correct match of the box numbers and the genotype of the offspring?
Btw graph is below (ScreenShot)
Answer:
B.
Explanation:
when you use punnett squares, you cross the different genes with themselves. if T is in the first box on both sides, the genome will be TT. if the box lines up to tt, it will be tt. the boxes on the left use the genes' first letter and the boxes on the right use the second letter.
The result of the cross between Tt and Tt would be TT, Tt, Tt, tt.
Monohybrid crossingThis is a kind of crossing involving only one trait.
The genotype Tt will segregate to T and t respectively.
Crossing Tt and Tt:
Tt x Tt
TT Tt Tt tt
Thus, box 1 will contain TT, box 2 will contain Tt, box 3 will contain Tt, and box 4 will contain tt.
More on monohybrid crossing can be found here: https://brainly.com/question/15314052
I AM ON A TIMER BE QUICK!! Which material would result in the greatest amount of energy transfer?
A. An absorber that is dark in color and rough.
B. A reflector that is dark in color and smooth.
C. An absorber that is light in color and rough.
D. A reflector that is light in color and smooth.
Answer:
A. An absorber that is dark in color and rough
Hi can someone help me plz! I’m behind on this and I don’t understand
Answer:The atoms you need to build are on the right. You need three colors, and need to say what each color is. Each color should represent a different element.
Explanation:
Answer:
The atoms you need to build are on the right . You need three colors and you need to say what the colors are. Each color should represent a different element.
Explanation:
RNA molecules carry amino acids to the ribosomes to begin the work of assembling a protein chain, True or false. explain please
Answer:
True
Explanation:
That is true about RNA
In your own words, explain the difference between how a ‘dam system’ transforms hydropower into electrical energy compared with how a ‘run-of-the-river system.
I need help right now lol,So the question is :During high tide, ocean waves often become larger. If the amplitude of a wave increases by a factor of 4, by how much does the energy increase?
Answer:
1.21 times
Explanation:
The energy of a wave is proportional to the square of the amplitude of the wave.
Mathematically:
e & a²
where
E is the energy of the wave
A is its amplitude
In this problem, the amplitude of the wave increases by a factor of 1.1; it means that the new amplitude can be written as
A=1.1A
Therefore, this means that the energy of the wave increases by a factor:
E' & A'²= (1.1A)² =1.1²A² =1.21A² =
1.21E
Therefore, the energy of the wave increases by a factor 1.21.:
From the set {41, 53, 65}, use substitution to determine which value of x makes the inequality true.
MATHH
A. none of these
B. 41
C. 65
D. 53
Answer:
Maybe C. But we dont know the equation.
Explanation:
True or False: Concrete has only positive qualities, and there are no disadvantages to using it.
PLEASE HELP
………… is the Energy stored in chemical bonds.
Answer:Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy. ..
Explanation:This movement is a form of kinetic energy, and the more the molecules move the more kinetic energy they have. Molecules in solids don't move much, they just vibrate
Answer:
ANS is potential energy
Hope it helps