Answer:
we need to see the diagram
Explanation:
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
Answer:
A number is right I think
Answer:
A.
beryllium fluoride
I hope it is helpful...
what is the percent of just the oreo(out of 100%) from the total mass of these 3 cookies combined
Answer:
Percent mass of oreo = 35.11%
Explanation:
Given:
Mass of oreo = 17.1
Mass of 1st cookie = 16.2
Mass of 3rd cookie = 15.4
Find:
Percent mass of oreo
Computation:
Total mass = Mass of oreo + Mass of 1st cookie + Mass of 3rd cookie
Total mass = 17.1 + 16.2 + 15.4
Total mass = 48.7
Percent mass of oreo = [Mass of oreo/Total mass]100
Percent mass of oreo = [17.1 / 48.7]100
Percent mass of oreo = 35.11%
explain why it is more difficult to produce drinking water from waste water than from water in lakes
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.
two difference between simple cell and dry cell
Explanation:
Simple cell has liquid chemicals and it is difficult to carry from one place to another. Dry cell has no solution. So, it is easier to carry it from one place to another and there is no risk of spilling acid from the dry cell.
What is the empirical formula of a compound that contains 28% iron, 24% sulfur, and 48% oxygen by mass?
Answer:
Fe2S3O12 would be the closest Answer
Explanation:
what does indicator that a chemical change has occurred?
Answer:
change in color or state of matter
Explanation:
hope i helped! ❤❤
What do you call a rock that cooled rapidly outside a
volcano?
Explanation:
intrusive rocks.....
.
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
Answer:
400x
Explanation:
magnification=magnification of objective lens*magnification of eyepiece lens
m=40*10
m=400x
I really need help I'm not good with science
Answer:
A!!!!!!!!
Explanation:
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.
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
Balance the following chemical equation:
i need F
Answer:
L2 add a for NAL add a 2 then for the first NA2 put a 4 and then the second NA2 put a 2 and it should be good
Explanation:
The surface currents of Earth’s oceans are most likely created by which of the following?
Answer:
global wind patterns. the rotation of the Earth. the shape of the ocean basins.
Explanation:
What is the slope of the line?
earth is one of the planets in the
Answer:
moon obviously
Explanation:
........
Which of the following DOES NOT belong to the group?
A.eyes
B.mouth
C.large intestine
D.stomach
Answer:
eyes
Explanation:
It is because the mouth, large intestine and stomach comes in the digestive system abd eyes doesn't.
HOPE THIS HELPS
Explain how Newton's idea about inertia has helped in astronomy?
o We can learn that objects in space like asteroid will keep its path unless a different force is applied to it
The Law of Inertia will help us discover distant galaxies
Inertia is used to help identify distance planets.
o We can figure out the size of far away planet through the Law of Inertia.
NEXT QUESTION
ASK FOR HELP
Answer:
the answer is A because when something is going straight it wont change unless its acted upon by a force
Explanation:
PLZ HELP SCHOOL STARTS TMR AND I NEED THIS DONE BY 2NIGHT. ILL GIVE BRAINLIEST
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.
Use the drop-down menus to select the names of the labeled structures.
A:
B:
C
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
How many grams of nitric acid, HNO3, are required to neutralize (completely react with) 4.30 g of Ca(OH)2?
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
https://brainly.com/question/10082840
#SPJ2
it is also called solution
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.
Which of these factors is involved in earthquake formation?
A. plates getting larger
B. rocks breaking
C. stress that decreases
D. faults that remain stationary
Answer:
B
Explanation:
Edge 2023
If an atom contains one electron and one proton will it carry any charge or not?
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.
What is the rate of acceleration caused by gravity?
Answer:
The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.
In what situation does water undergo a physical change?
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.
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.
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)
Answer:
The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.
Someone please answer this in like 40 minutes
Before it’s due. Explain the answer too
Answer:
kkkwkisa
Explanation:
wulaoaiq8qiIq8qiaik
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.
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!
What name is given to this type of diagram
Answer:
There's no graph attached to the question
I'm having trouble balancing these. Can you help me
Answer:
Oh Okay
I hope u have a better rest of ur day