Chemistry High School

DIMENTIONAL ANALYSIS!

‼️ASAP!!! BRAINLIEST!!‼️
PLS HELP!!! SHOW ALL WORK + STEPS!! Thx!

DIMENTIONAL ANALYSIS!ASAP!!! BRAINLIEST!!PLS HELP!!! SHOW ALL WORK + STEPS!! Thx!

Answers

Answer 1

Answer:

1037.56 mph

Explanation:

We are told the distance around the earth which is the circumference is 40075 km.

Converting to miles gives 24901.451 miles

Formula for speed = distance/time

Time for one rotation is 24 hours.

Thus, speed = 24901.451/24 = 1037.56 mph

Related Questions

2
The current temperature, wind, precipitation and
other atmospheric conditions at any given time describes what?
A Controls
B Climate
C Tropics
D Weather

Answers

The answer is D.......

Calculate the number of moles in 3.440 x 10^35 formula units of RbF. (Molar mass of RbF is 104.47g/mol).

Answers

3.293 moles of RbF ! Divide 3.440 X 10^35 by 104.47

A 12.0 g sample of O​2​gas is inside a rigid, metal container with a volume of 5.00 L at 3.00 atm of pressure. What is the temperature of the gas?

Answers

B I got it right! Or it is A

Observa los dibujos cada uno representa una sustancia. Cada bolita representa un simboliza un átomo de un elemento.

Answers

Answer:

A: Elemento

B: Elemento

C: Elemento

D: Compuesto

E: Elemento

F: Compuesto

G: Compuesto

H: Compuesto

I: Elemento

J: Compuesto

K: Elemento

L: Elemento

Se adjunta la imagen con los dibujos.

Explanation:

Un elemento químico está compuesto por átomos específicos, por ejemplo el oxígeno, el helio, el sodio, cloro. Por otro lado, un compuesto químico es la combinación de dos o más elementos químicos diferentes, por ejemplo, cloruro de sodio, que forma por la combinación de sodio y cloro (NaCl), dióxido de carbono, que se forma por la unión de carbono con tres átomos de oxígeno (CO₃), agua que se forma por la combinación de dos átomos de hidrógeno con un átomo de oxígeno(H₂O), etc.

Someone please help me with this I dont know if this is correct

Answers

Answer:

Yes its correct

Explanation:

Protons + Nuetrons

Answer: Go with your gut cos

Explanation:

Q3 - Complete the word equation *
1 point
Bromine +
Chlorine
Bromide +
Potassium
Chloride
Bromine +
Potassium
Chloride
Hydrogen
bromide +
Potassium
Chloride
Chlorine +
Potassium
Bromide ->

Answers

whoever gave u this homework, doesnt really understand the concept

What’s the answer? I need an answer as soon as possible please!

Answers

Answer:

1, 1, 2

Explanation:

1, 1, 2

N2O5 + H2O → 2HNO3

The coefficients for the N2O5 and H2O are technically 1; if you must provide a value for those reactants, then that would be it.

A gas in the form of Bubbles is released is it a chemical change or a physical change

Answers

Answer:

The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. Another clue that a chemical change has occurred is the formation of a solid.

Explanation:

the answer is a chemical change!!

बा
If OPPOSITE poles (N and S) of
a magnet are placed near
each other, what happens?
Type answer here

Answers

Answer:

They attract each other

Explanation:

A magnet has two poles;

North pole and south pole

When two opposite poles are placed close to each other, they attract each other. The short rule is opposite opes attract.

When two like poles are placed close to each other, they repel each other. The short rule is like poles repel.

HELP ME PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What happens when something reaches absolute zero?
Question 5 options:

1)There are no particles left in it

2)The particles completely stop moving

3)The particles are vibrating at a rate greater than the speed of light

4)There is no such thing as absolute zero

Answers

Answer:

There's no such thing as absolute zero

Answer:

I think number 1 but if wrong report me

Fe2O3 (s) + 2 Al (s) ---> 3 Fe (l) + Al2O3 (s) Based on the thermite reaction, how much aluminum oxide (Al2O3) is formed from 8.0 grams of aluminum (Al)?

Answers

Answer:

15.3 g

Explanation:

Fe₂O₃ (s) + 2Al (s) → 3Fe (l) + Al₂O₃ (s)

First we convert 8.0 grams of aluminum into moles, using its molar mass:

8.0 g Al ÷ 27 g/mol = 0.30 mol Al

Then we convert 0.30 moles of aluminum into moles of aluminum oxide, using the stoichiometric coefficients:

0.30 mol Al * [tex]\frac{1molAl_2O_3}{2molAl}[/tex] = 0.15 mol Al₂O₃

Finally we convert 0.15 moles of Al₂O₃ into grams, using its molar mass:

0.15 mol Al₂O₃ * 102 g/mol = 15.3 g Al₂O₃

Why do some animals defend their territory after they have mated
and reproduced?


a.They can gain more food for their offspring

b.they can provide a larger nest for their offspring.

c.They are naturally aggressive.

d.They are carrying out a mating dance.​

Answers

Answer:

i believe it is a

Explanation:

The reason is :a.They can gain more food for their offspring

Animals tend to protect their territory because they don't want  intruders to invade their territory.

Animals majorly protect their territory in order to protect their foods from been eating by intruders as this will enables their offerings to have enough foods to eat.

They as well guard  their territory in order to prevent intruders from invading the place they have prepare as their mating place.

Inconclusion  The reason why some animals defend  their territory after they have mated

and reproduced is :a.They can gain more food for their offspring

Learn more here:

https://brainly.com/question/19604368

PLS HURRY MY TEST IS TIMED

Currently, some commercially available explosives are tagged with traceable
radioactive isotopes
chemical markers
cell-signal components
acetone compounds

Answers

Answer:chemical markers

Explanation:

I’m smart give brainlest plz


Frost forming on a car's windshield is a chemical change
True or false

Answers

Answer:

True

Explanation:

The reason why is because frost is a result of a chemical reaction

Chemical Change is also known as the Non Reversible Change. ... Reversible Change is defined as changes that can be reversible. For example, frost forming on the window is Physical. It is because when the temperature goes up, the frost can melt and when it freezes, it forms a frost again

answer quick plssssssssss

Answers

I’m pretty sure it’s 3.14

How much heat is needed to warm 250g of water from 22℃ to 98℃?

Answers

Answer:

Thus, the required heat is 79kJ 79 k J .

Explanation:

i think its the right bottem one

Fish can be killed by a sudden increase in water
A. Temperature
B. Level
C. Density
D. Color

Answers

Answer:

i think it is A

Explanation:

Answer:

Explanation:

A. Most definitly Temperature!

Can someone help me plz

Answers

i’m pretty sure the answer is C

OPEN ENDED QUESTION A chemistry student has a 5.001 g of CaCl2. How many moles of CaCl2 does the student have? (mm CaCl2 = 110.98 g)​

Answers

Answer:

0.04506 mol

Explanation:

For this problem, you need to convert grams to moles.  To do this, you need the molar mass, which is given.  Divide the mass by the molar mass to find the moles you have.

(5.001 g)/(110.98 g/mol) = 0.04506 mol

Why is fluorine a gas at room temperature?
GIVING BRAINLIEST AND LOTS OF POINTS ‼️‼️

Answers

Answer:

In fluorine, the electrons are tightly held to the nuclei. The electrons have little chance to wander to one side of the molecule, so the London dispersion forces are relatively weak. At a low enough temperature the molecules will all be solids. At a high enough temperature they will all be gases.

Explanation:

Which element would you predict to have the highest first ionization energy? Why?

a) neon or carbon

b) fluorine or francium

c) beryllium or strontium

d) iodine or fluorine

Answers

the answer is c and i don’t know why

True or false, the torch that is carried to the Olympic cauldron to be lit, is ignited by a match

Answers

Answer:

true

Explanation:

3.
Plant A
Plant B
Is tall
Is short
Has many large deep roots Has many small short roots
Has many small leaves
Has many large leaves
Comes in many different colors comes in only one color
The table shows some observations made by a group of students studying plants they will use
in a flower garden. Which conclusion is best supported by these observations?

Answers

Plant A is the answer

Two students pull a box with force of 100 N to the left and 200 N to the right.

What is the net force and direction in which the box moved?

Answers

Answer:

net force is 100 N and direction is right

Explanation:

5) Calculate the volume, in liters, of 3.24 x 1022 molecules
CI2

Answers

Answer: 1.12 Liters

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given molecules}}{\text {avogadro's number}}=\frac{3.24\times 10^{22}}{6.023\times 10^{23}}=0.05moles[/tex]

1 mol of [tex]Cl_2[/tex] occupy = 22.4 L

Thus 0.05 mol of [tex]Cl_2[/tex] will occupy = [tex]\frac{22.4}{1}\times 0.05=1.12 L[/tex]

The process of water changing from a liquid to solid is called?

Answers

It must be freezing or condensation

Answer:

freezing

Explanation:

When a solid reaches the temperature of its melting point, it can become a liquid. For water, the temperature needs to be a little over zero degrees Celsius (0oC) for you to melt. ... The reverse of the melting process is called freezing. Liquid water freezes and becomes solid ice when the molecules lose energy.

hope it becomes helpful to you ☺️☺️

good luck

Can anybody do this?

Answers

Answer:this should be c

Explanation:

How many grams of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide

Answers

Answer:

2 grams.

Explanation:

H2 + O2 --->  H2O2

Using molar masses:

2*1 g hydrogen   reacts with 2*16  g oxygen.

so 2g H2 reacts with 32 g O2.

is butanoic acid a hydrocarbon?​

Answers

Carboxylic acids are derivatives of hydrocarbons in which one or more of the hydrogen atoms in the hydrocarbon have been replaced by a carboxyl group.
Yes butanoic acid is a hydrocarbon.

Name the following cycloalkane:

CH2CH2CH2CH3
A. butylcyclohexane
B. butylcyclopentane
C. propylcyclohexane

Answers

Answer:

The answer for this question is A. butylcyclohexane

Explanation:

Choose letter A

You welcome have a nice day.

Name of the given compound is butyl cyclohexane.

What are cyclo alkanes?

Cyclo alkanes are those organic compounds in which alkanes are present in the cyclic form.

In the nomenclature of cyclo alkane, name of the substitute is put before the name of the main ring. In the given structure number of carbons in ring is 6 so that given cycloalkane is cyclohexane and butyl group is attached as substitute. So name of the given compound is butyl cyclohexane.

Butyl cyclopentane is wrong because 6 carbons are present in ring.Propylcyclohexane is also wrong because 4 carbons are attached in the ring.

Hence name of the compound is butyl cyclohexane.

To know more about cycloalkanes, visit the below link:
https://brainly.com/question/25058711

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