Chemistry High School

Does anyone know what I should put for number 2 if you KNOWW plssss

Answers

Answer 1

They all end with the ending “ide”

Related Questions

What is the function of the vacuole?
to make proteins
for storage
to transport materials
to control all cell functions

Answers

Explanation:

In animal cells, vacuoles are small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Therefore the answer should be B. For Storage

Hope this helps!

Please mark brainliest!

On the acid side you can find things like.... *

Answers

Answer:

jolly ranchers

Explanation: yes

PUN
Which of the following is an example of a Response to Change? (Read carefully, the other three are Adaptations)
(A)Thoms and Spikes as a protective mechanism
(B)Polar Bears transparent fur and black skin
(C)Plants turning toward the light
(D)Frogs webbed feet

Answers

I believe the answer would be: C) Plants turning toward the light.

Which is an empirical formula? C₂H₄ C₃H₆ P₂O₅ P₄O₆

Answers

Answer:

C3H8

Propane/Formula

Explanation:

hope this helps

The element oxygen, represented by the symbol O, is classified as
A. a compound.
В. a mixture.
C. a solution.
D. a pure substance.

Please help soon! :))

Answers

D pure substance :)

How would you find the average speed of a marathon runner throughout an entire race? A Divide the total distance the runner travelled by the total time they took to travel that distance B Divide the total time the runner it took the runner to travel that distance by the the total distance they travelled C Multiply the total distance the runner travelled by the total time they took to travel that distance D Multiply the total time the runner it took the runner to travel that distance by the the total distnace they travelled

Answers

Answer:

distance divided by time so A

Explanation:

Calculate the Molar Mass in g/mol of Ammonium Sulfate, (NH4)2(SO4)

Answers

Answer:

132g/mol

Explanation:

The problem here is to find the molar mass of the compound in g/mol

To solve this problem, we simply sum the atomic masses of the atoms in the compound:

(NH₄)₂ SO₄:

Atomic mass of N = 14g

Atomic mass of H = 1g

Atomic mass of S = 32g

Atomic mass of O = 16g

So;

Molar mass = 2[(14 + 4(1))] + 32 + 4(16) = 132g/mol

84 pt =_____ qt

5.0 gal =_____ L

Answers

Answer:

84 pt =__50.4399___ qt

5.0 gal =___18.9271__ L

Explanation:

Have A Wonderful Day!!

Answer: 84 pints = 42 quarts

5.9 gallons = 1.89271

Explanation:

12. Describe an open system

Answers

Answer:

An open system is a system that has external interactions. An open system is contrasted with the concept of an isolated system which exchanges neither energy, matter, nor information with its environment. An open system is also known as a flow system.

help asap plz will give brainliest !!!!!!

Answers

Answer:B and A

Explanation:

i think

they are both radiation. the toaster because the wires are heated, toasting the bread without touching it. the fire because, they’re heat waves, also like the toaster.

URGENT! plz help me T-T
The compound MnO2 could either have a +4 or a +2 oxidation state on the manganese (Mn) atom. Explain how either scenario could occur.

Answers

Answer:

See explanation

Explanation:

Manganese is a transition element. All transition elements have incompletely filled d orbitals which ultimately makes them to exhibit a variable oxidation state.

Manganese has electronic configuration of [Ar]4s23d5. This means that two electrons could be lost from the s orbital to yield Mn^2+. Also, two electrons could be lost from both s and d orbitals to yield Mn^4+

How does the number of tin atoms in the sample compare to the number of aluminum atoms in a 20 gram sample of each (Sn:Al)

Answers

The number of Al atoms is greater than the number of Sn atoms

Further explanation

Given

20 gram sample of Tin and Aluminum

Required

Number of atoms

Solution

1 mol = 6.02 x 10²³ particles (atoms, molecules, ions)

So the number of atoms of each element is determined by the number of moles. The greater the number of moles the greater the number of atoms

moles Sn-Tin(Ar = 118,71 u)

mol = mass : Ar

mol = 20 : 118,71 u

mol = 0.168

moles of Al-Aluminum(Ar=26.9815 u)

mol = 20 : 26.9815 u

mol = 0.741

So the number of Al atoms > number of Sn atoms

15.
Copper (II) carbonate dissociate when heated strongly according to the
chemical equation.
Kuprum (II) karbonat terurai apabila di panaskan mengikut persamaan kimia
berikut.
CuCO
CuO + CO2
What is the mass of copper(II)oxide formed when 12.4g of copper(11) carbonate
dissociate completely?
[Relative atomic mass: Cu = 64, 0 = 16, C = 12]
Berapakah jisim kuprum(II)oksida yang terbentuk apabila 12.4g kuprum(11)
karbonat terurai selengkapnya.?
[Jisim atom relatif. Cu = 64, 0 = 16, C = 12]
A
8.0 g
B
16.0 g
C
24.8 g
D
160 g

Answers

I’ll say the answer is d 160 g

NEED ANSWER ASAP HELP!!!!

Answers

Answer:

1. 4 Km

2. 40 minutes

3. 0.1 Km/min

Explanation:

1. Determination of the total distance travelled.

From the graph given in the question above, we can see that the total distance travelled by the object is 4 Km since the path taken by the object in the graph ends at the 4 km mark.

2. Determination of the Time taken.

A careful observation of the graph given in the question shows that the entire trip took 40 minutes since the distance travelled by the object ends at the 40 minutes mark on the graph.

3. Determination of the average speed of the object.

Total distance = 4 Km

Total time = 40 mins

Average speed =..?

Average speed = Total distance / total time

Average speed = 4 / 40

Average speed = 0.1 Km/min

If you have 8.5 moles of water (H2O), how many grams of water do you have?

Answers

Answer: i think it is 144.16

Explanation:

Apollo 11 made a ______ landing.

Answers

Answer:

Apollo 11 made a capsule landing

Explanation:

Answer: i don’t know what type of landing you mean

Explanation:

They did a lunar landing then reentry and then capsule landing.

Tutorial Service is considered as what type of product?

Answers

Answer:

A tutorial, in education, is a method of transferring knowledge and may be used as a part of a learning process. More interactive and specific than a book or a lecture, a tutorial seeks to teach by example and supply the information to complete a certain task.

The compound F2O has two lone pairs on the central oxygen atom. What's the structure of an F2O molecule? Is this compound polar or non-polar? Question 1 options: A) Bent or angular, polar B) Trigonal planar, polar C) Bent or angular, non-polar D) Trigonal planar, non-polar

Answers

Answer: A) Bent or angular, polar

Explanation:

The central atom oxygen has two lone pairs and two bond pairs in [tex]OF_2[/tex]. The number of electron pairs are 4, that means the hybridization will be [tex]sp^3[/tex] and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.

The compound [tex]OF_2[/tex] is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.

The electrical charge of the nucleus is determined by:
a. the number of neutrons only
b. the number of protons and neutrons together
c. the number of protons only
d. the number of electron only

Answers

i think it’s electron:)

If I have ten eggs and lots of milk, flour and oil, how many
crepes can I make?

Answers

Answer:

I'd say about 8?

Explanation:

if you wanna make them huge make about 6

1pt Twins raised in different families still exhibit similar mannerisms, indicating that at least some behavior is
O A. genetis
OB. environmental
O C. instinctual
OD. learned

Answers

The answer is A, genetic.

Twins reared apart help identify genetic and environmental influences on behavioral development, this allowed direct estimates of genetic effects on behavior and health, because they share all their genes, but differ in their environments.

The gas that makes up about 21 percent of the atmosphere is blank

Answers

Answer:

oxygen makes up 21 percent of the atmosphere

An analog and a digital version of an audio signal were copied.
Analog wave
Digital wave
Original
Original
wmin TAILLAMOUNTAIN
Varan TO
Copy
Copy
Which conclusion is supported by the results shown in the table?
A. Digital waves can be copied without damaging the audio signal,
whereas analog waves cannot
B. Both digital and analog waves become damaged during the
copying process
C. Analog waves can be copied without damaging the audio signal,
whereas digital waves cannot
D. Noise is introduced when both digital and analog waves are
copied

Answers

Answer:

The answer is A.Digital waves can be copied without damaging the audio signal, whereas analog waves cannot

Explanation:

I took AP EX quiz.

Due to the lower pressure on top of Mt. Everest, water can
boil before the temperature gets to 100°C. If pure water
begins to boil at 70°C on Mt. Everest, what is this
temperature in kelvins?
Select one:

a.273 K

b.163 K

c.343 K

d.373 K

Answers

c. 343K
70 degrees C + 273 = 343

Chemistry 1 - Types of Radioactive Decay

Answers

Answer:

Explanation:

The reaction expression is given as:

⁴⁰₁₈ Ar → X + ⁰₁B

To solve this problem, we must bear in mind that both mass number and atomic number must be conserved.

So;

For the mass number:

40 = A + 0

A = 40

For atomic number:

18 = Z + 1

Z = 18 - 1 = 17

An atom is identifiable by the atomic number. Since the atomic number of X is 17 then it is Cl, chlorine

3 reasons why aluminium is used in making of cooking vessels

Answers

Answer is : It is a good thermal and electrical conductor. -The main point to be noted is that aluminium is a highly reactive element and still it is used for making cooking utensils. The reason is that aluminium has a very high affinity for oxygen. So, it reacts with oxygen and forms a layer of aluminium oxide on its surface.

Answer:

This is because aluminium reacts with oxygen present in air to form a thin layer of aluminium oxide . This oxide layer is very stable and prevents further reaction of aluminium with oxygen . Also , it is light in weight and a good conductor of heat Hence , it is used to make cooking utensils .

Explanation:

Believe it

Can someone help me please :)

Answers

I think it’s the third option but I’m not entirely sure

I’m sure it’s the third one!

How do you calculate the percent composition of an element in a compound

Answers

Answer:

Percent composition is calculated from a molecular formula by dividing the mass of a single element in one mole of a compound by the mass of one mole of the entire compound. This value is presented as a percentage.

Explanation:

I am listing the order starting with new moon.
New Moon
Waxing Crescent
first quarter
waxing gibbous
full moon
waning gibbous
last quarter
waning crescent
and new moon again.

Answers

Answer:

new Moon.

waxing crescent Moon.

first quarter Moon.

waxing gibbous Moon.

full Moon.

waning gibbous Moon.

last quarter Moon.

waning crescent Moon.

New moon

Explanation:

Your answer is correct

Why do molecules with dipole-dipole force have higher melting and boiling points than molecules
that only exhibit London Dispersion force?

Answers

Answer:

Because dipole - dipole force is stronger than london dispersion force

Explanation:

Intermolecular forces determines a wide range of physical properties of matter of which melting point is one of them.

Both london dispersion forces and dipole- dipole forces are vanderwaals force.

But diople - dipole forces exists between polar molecules which are molecules with permanent dipoles.

In london dispersion forces the dipole is temporary

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He decides to join the League of Conservation Voters to help them lobby against deregulatingpesticides.This is an example of which of the following models of democracy?Choose 1 answer:Direct democracyParticipatory democracyElite democracyPluralist democracy TONYA is 5 ft 3 in tall, weighs 151 pound and is 38 years old Article 8th:The Navigation of the river Mississippi, from its source to the Ocean, shall forever remain free and open to the Subjects of Great Britain and the Citizens of the United States.from the Treaty of Paris, 1783Which statement makes a logical inference about how Britain interpreted this passage?Britain feared the United States was already limiting its access to the river.Britain thought international trade would be open to all nations on the river.Britain intended to take control of the river away from the Americans entirely.Britain believed it should possess exclusive rights to trade with the US on the river.(THE ANSWER IS D) PLEAS ANSWER ASAP I KNOW NOTHING ABOUT SPORTS!!!:What is a defensive action in a team sport give an example An observational study conducted in inner-city Boston approximately four years ago demonstrated that high-school students who consumed more than five cans of non-diet soda every week were between 9 and 15-percent likelier to engage in an aggressive act compared with counterparts who drank less non- diet soda. Based on this evidence, we can reliably conclude that _________A. engaging in aggressive acts must have caused students to drink non-diet soda B. students who drank less non-diet soda were generally less likely to engage in aggressive acts C. a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts D. drinking non-diet soda must have caused students to engage in aggressive acts SALO What are the responsibilities of elected officials and appointed officials in city governments? Which of the following best explains why larger grapes have a different rate of water absorption per gram of mass than smaller grapes do? What was the result of the conquistadors and Spanish rulers arrangement in Mexico and Peru? Jacob's family traveled 2/7 of the distance to his grandfather's house on Saturday. They traveled 2/5 of the remaining distance on Sunday. What fraction of the total distance to his grandfather's house was traveled on Sunday? What health risks are associated with anorexia? PLEASE HELP!!!Imagine that a large earthquake hits North America. The earthquakes epicenter is exactly on the border between the United States and Canada between Seattle and Vancouver. The towns and cities closest to the epicenter and in both countries are severely damaged.Based on what you have learned in this class and any additional research made, which country (the United States with its presidential system of democracy or Canada with its parliamentary system of democracy) will be more effective at addressing the crisis? Explain your answer. Pls help it due ASAP hdhdhd I bought a pizza Alexis ate 3/4 of the pizza how much pizza do I have left??? Last month rudys tacos sold 22 dinner specials. The next month they sold 250% of last months dinners. How many dinner specials did they sell this month? Speech by Barbara Jordan (D-Texas), Member of the House Judiciary Committee. Mr. Chairman: I join in thanking you for giving the junior members of this committee the glorious opportunity of sharing the pain of this inquiry. Mr. Chairman, you are a strong man and it has not been easy, but we have tried as best we can to give you as much assistance as possible. Earlier today, we heard the beginning of the Preamble to the Constitution of the United States, We, the people. It is a very eloquent beginning. But when the document was completed on the seventeenth of September, 1787, I was not included in that We, the people. I felt somehow for many years that George Washington and Alexander Hamilton just left me out by mistake. But through the process of amendment, interpretation and court decision I have finally been included in We, the people. Today, I am an inquisitor; I believe hyperbole would not be fictional and would not overstate the solemnness that I feel right now. My faith in the Constitution is whole, it is complete, it is total. I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution. The subject of its jurisdiction are those offenses which proceed from the misconduct of public men. That is what we are talking about. In other words, the jurisdiction comes from the abuse or violation of some public trust . . . The North Carolina ratification convention: No one need to be afraid that officers who commit oppression will pass with immunity. . . . Common sense would be revolted if we engaged upon this process for petty reasons. Congress has a lot to do: Appropriations, tax reform, health insurance, campaign finance reform, housing, environmental protection, energy sufficiency, mass transportation. Pettiness cannot be allowed to stand in the face of such overwhelming problems. So today we are not being petty. 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