Answers
Answer:
single displacement
Explanation:
Related Questions
PLZ HELP SCHOOL STARTS TMR AND I NEED THIS DONE BY 2NIGHT. ILL GIVE BRAINLIEST
Answers
Answer:
Filtration separates solids of different sizes.
Distillation takes advantage of differences in boiling points.
Evaporation removes a liquid from a solution to leave a solid material.
What is the slope of the line?
Answers
Select the correct answer.
Beryllium (Be) and fluorine (F) combine to make the compound BeF2. What is the chemical name for this compound?
A.
beryllium fluoride
B.
beryllium fluorine
C.
beryllide fluoride
D.
beryllide fluorine
Answers
Answer:
A number is right I think
Answer:
A.
beryllium fluoride
I hope it is helpful...
Which of the following DOES NOT belong to the group?
A.eyes
B.mouth
C.large intestine
D.stomach
Answers
Answer:
eyes
Explanation:
It is because the mouth, large intestine and stomach comes in the digestive system abd eyes doesn't.
HOPE THIS HELPS
it doesn’t have anything to do w the others
In what situation does water undergo a physical change?
Answers
Answer:
There are actually two.
Explanation:
When water freezes it turns to ice however it still has the molecular properties of water. Same thing when it evaporates.
What do you call a rock that cooled rapidly outside a
volcano?
Answers
Explanation:
intrusive rocks.....
.
an object that is moving will stop when
Answers
Answer:
factor
Explanation:
Answer:
something pushes or pulls it to a stop.
Antarctica is a frozen land so cold and I see no changes in Wheeler scientist have discovered fossils
Answers
Answer:
The correct answer is - due to the movement of plates it is relocated.
Explanation:
Antarctica is a very cold part of the earth, it is so cold that there is no growth of trees or such vegetation. Even though there are no or less vegetation scientists found fossils of the trees.
It is relocated from the north where the conditions were warmer and easy for tree growth. It is then moved due to plate movements to the south pole. This is the reason behind the fossils scientist found.
Which of the following pairs of elements will form covalent bonds with each other? PLEASE HELP
Answers
The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).
What is Covalent Bond ?
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Silicon and nitrogen forms strong covalent bond . This stable covalently bonded material does not readily sinter and cannot be heated over 1850⁰C as it dissociates into silicon and nitrogen.
Therefore, The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).
Learn more about Covalent Bond here ;
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Metion two common types of flames and conditions under which each is produced
Answers
Answer:
natural flame,oxidising flame
The surface currents of Earth’s oceans are most likely created by which of the following?
Answers
Answer:
global wind patterns. the rotation of the Earth. the shape of the ocean basins.
Explanation:
What causes rocks to change and form into new types of rocks?
Answers
Answer:
The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
What chemicals must be cycled through a Martian environment in order for the planet to be habitable for life? Describe how scientists intend to make those resources available in such a harsh environment.
Answers
Use the drop-down menus to select the names of the labeled structures.
A:
B:
C
Answers
Answer:
A:petal
B:pistil
C:stamen
Explanation:got it right on edu 2021
Answer:
C
A
B
Explanation: on ED about Identifying Earth’s Layers
Explain why laboratory safety rules are important.
it's for a essay please help!!!!!!
Answers
Answer:
Laboratory safety rules are important because there can be many dangerous chemicals in a lab. Safety rules help people stay safe when they are in close contact with these chemicals. Over the past few years, lab safety rules have prevented many deaths. It's important to follow these rules because you could get seriously injured if you don't.
Hope that helps! Good luck! :)
Disease and bacteria are spread when lab procedures are not followed. The instruments used by students and professionals must be fully cleaned and sterilized to prevent the dangerous spread of these diseases and bacteria
How many grams of nitric acid, HNO3, are required to neutralize (completely react with) 4.30 g of Ca(OH)2?
Answers
Answer:
8.25 g HNO3 (please correct me if I'm wrong!)
The correct answer is 7.31 g HNO₃.
What is nitric acid used for?Nitric acid is used for the production of ammonium nitrate, a major component of fertilizers. It is also used for producing explosives like nitroglycerin and trinitrotoluene (TNT) and for oxidizing metals.
Please check the attached file for an explanation.
Learn more about nitric acid at
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it is also called solution
Answers
Explanation:
In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. ... The term "aqueous solution" is used when one of the solvents is water.
What name is given to this type of diagram
Answers
Answer:
There's no graph attached to the question
You want to compile a list of properties of a substance , but you don't have a way to measure mass it volume. What kinds of properties can you determine without knowing the amount of matter in the sample?
Answers
Explanation:
I Would Determine Mass,Volume And Weight
8
This wasp was viewed under a microscope with a 40x objective lens and a 10x
eyepiece lens.
What was the total magnification
help its for my assessment
25 points
Answers
Answer:
400x
Explanation:
magnification=magnification of objective lens*magnification of eyepiece lens
m=40*10
m=400x
explain what keeps the electrons confined in the space surrounding the nuleus
Answers
Answer:
Electrons are trapped inside the atom because of the attraction forces with positively charged protons that are found in the nucleus.
what does indicator that a chemical change has occurred?
Answers
Answer:
change in color or state of matter
Explanation:
hope i helped! ❤❤
What does 10% humidity in a weather report indicate?
A)the level of humidity is high.
B)the level of humidity is low.
C)the level of humidity is moderate.
D)the air can not hold anymore water.
Answers
Answer:
B
the humidity is the % of water in the air and it is out of 100% of the air. so 10/100 is low
Answer:
B
Explanation:
30%-50% is considered moderate. Anything below 30% is considered dry, anything above 50% is considered high. I hope this helps!
If an atom contains one electron and one proton will it carry any charge or not?
Answers
Answer:
That atom will not contain any charge because one negative charge of single electron and one positive charge of single proton are neutralized by each other.
32. A sample of potassium is composed of 23% K-39, 48% K-40 and the remainder K-41. Calculate the average mass
of the sample.
Answers
Answer:
40.06 amu.
Explanation:
From the question given above, the following data were obtained:
Isotope A (K-39)
Mass of A = 39 amu
Abundance of A = 23%
Isotope B (K-40)
Mass of B = 40 amu
Abundance of B = 48%
Isotope C (K-41)
Mass of C = 41 amu
Abundance of C = 100 – (23 + 48)
Abundance of C = 100 – 71
Abundance of C = 29%
Average mass =?
Average mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]
= [(39 × 23)/100] + [(40 × 48)/100] + [(41 × 29)/100]
= 8.97 + 19.2 + 11.89
= 40.06 amu
Thus, the average mass of potassium is 40.06 amu
earth is one of the planets in the
Answers
Answer:
moon obviously
Explanation:
........
Someone please answer this in like 40 minutes
Before it’s due. Explain the answer too
Answers
Answer:
kkkwkisa
Explanation:
wulaoaiq8qiIq8qiaik
Which of the following best describes the distribution of the world’s food supply? Select all that apply.
Still unevenly distributed leaving millions starving to death.
Quickly changing to be evenly distribute based on humanitarian efforts.
Slowly changing to be slightly more evenly distributed based on humanitarian efforts.
Evenly distributed throughout the population of the world now.
Answers
Answer: It would be A and C
Explanation: I did the test and got it right. Hope this helps!
Answer:
A + C
Explanation:
ur an amazing person have a great day :3
quote for today : ~dont trust anyone to much remeber the devil was once angle
If N and O were to bond, the difference in electronegativity would be
and we would expect the bond to be
ionic, covalent)
Answers
Answer:
The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.
explain why it is more difficult to produce drinking water from waste water than from water in lakes
Answers
Answer:
Drinking water can be produced from waste water and from lakes but the difference is in the difficulty of producing water which we can consume.
Drinking water should be clean and toxic free so that if does not affect the human body. Waste water carry more toxic matter in comparison to lake water that's why, producing drinking water from waste water takes more time, expensive and difficult.
So, producing drinking water from waste water is more difficult as it require the removal of more toxic matter than water in lakes.