I need help asap please help me

I Need Help Asap Please Help Me

Answers

Answer 1
Population, adaptation
Answer 2
population and adaption

Related Questions

What is the molar mass of CuCIO3

Answers

Answer:

147.05 g/mol

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TableExplanation:

Step 1: Define

CuClO₃

Step 2: Find MM

Molar Mass of Cu - 63.55 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CuClO₃ - 63.55 + 35.45 + 3(16.00) = 147.05 g/mol

What would the mass be, in grams, of 0.89 moles of Cl2?

Answers

Answer:

Mass = 63.19 g

Explanation:

Given data:

Number of moles = 0.89 mol

Mass of Cl₂ = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of Cl₂ = 71 g/mol

by putting values,

0.89 mol = mass/ 71 g/mol

Mass = 0.89 mol × 71 g/mol

Mass = 63.19 g

HELP ME SLOVE RN IT IS FOR CHEM

Answers

Answer:

NARUTOOOO

Explanation:

JAPAN is Answer I think it’s probably not though

mass
6.00 g of a certain compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 180. g/mol, is burned
completely in excess oxygen, and the mass of the products carefully measured:
product
carbon dioxide 8.80 g
3.60 g
Use this information to find the molecular formula of X.
water
alo
O
х
?

Answers

The molecular formula =C₆H₁₂O₆

Further explanation

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

CO₂=8.8 g

H₂O=3.6 g

Required

The molecular formula

Solution

mass C in CO₂ :

= 1.12/44 x 8.8

= 2.4 g

mass H in H₂O :

= 2.1/18 x 3.6

= 0.4 g

Mass O in compound :

= 6-(2.4+0.4)

= 3.2 g

Mol ratio C : H : O

= 2.4/12 : 0.4/1 : 3.2/16

= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

(CH₂O)n=180 g/mol

(12+2+16)n=180

(30)n=180

n=6

(CH₂O)₆=C₆H₁₂O₆

1. Which of the following elements has the smallest ionization energy
a. arsenic
b. nitrogen
c. bismuth
d. chlorine.

Answers

Answer:

chlorine

Explanation:

hope this helps

3.25 x 10^24 molecules of dinitrogen pentoxide would be how many moles?

Answers

Answer:

5.40 mol N₂O₅

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Using Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:

Step 1: Define

3.25 × 10²⁴ molecules N₂O₅

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                               [tex]\displaystyle 3.25 \cdot 10^{24} \ molecules \ N_2O_5(\frac{1 \ mol \ N_2O_5}{6.022 \cdot 10^{23} \ molecules \ N_2O_5})[/tex]Multiply:                                                                                                           [tex]5.39688 \ mol \ N_2O_5[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

5.39688 mol N₂O₅ ≈ 5.40 mol N₂O₅

Write out an example of a single replacement reaction involving silver and zinc.

Answers

Answer:

whats zinc?

Explanation:

please help this is due today which ones are reactive and which arent?​

Answers

Answer:

I' really don't know I'm sorry

The diagram shows four different locations in an atom.
2
Nucleus
3
7
4
Which locations are likely to have subatomic particles with the LEAST mass? (3 points)
a
1 and 2
b
2 and 3
с
1 and 4
Od
3 and 4

Answers

The locations with subatomic particles with the least mass are locations 1 and 4.

An atom is usually divided into two main regions:

The nucleus: This is shown in the diagram with the numbers 2 and 3, and contains protons and neutrons.The outer region: This region includes everything outside the nucleus, and in this region, it is expected to find electrons.

The three sub-particles previously mentioned (neutrons, protons, and electrons) differ not only in their location but also in their mass. Indeed, electrons have a lower mass if compared to neutrons and protons.

Based on this, the outer region (locations 1 and 4) has sub particles with the least mass.

Learn more about atom in: https://brainly.com/question/13981855

Answer:

1 and 4

Explanation:

took the test

Just saying thank you person above you are very great and smart. You deserve a hugeeeeeeee thank you. So, thank you!!!!!!!!!

To what temperature must an ideal gas at 27 o C be cooled to reduce its volume by 1/3

Answers

Answer:

28 oc

Explanation:

If a steel container holds 3.50 moles of hydrogen gas and 3.50 moles of helium gas, and the total pressure is 4.00 atm., what is the partial pressure of each of the gases

Answers

Answer:

1. Partial pressure of H₂ = 2 atm

2. Partial pressure of He = 2 atm

Explanation:

The following data were obtained from the question:

Mole of H₂ = 3.50 moles

Mole of He = 3.50 moles

Total pressure (Pₜ) = 4 atm

Partial pressure of H₂ =?

Partial pressure of He =?

Next, we shall determine the mole fraction of each gas this can be obtained as follow:

Mole of H₂ = 3.50 moles

Mole of He = 3.50 moles

Total mole = Mole of H₂ + Mole of He

Total mole = 3.50 + 3.50

Total mole = 7 moles

Mole fraction of H₂ = mole of H₂ / Total mole

Mole fraction of H₂ = 3.5/7

Mole fraction of H₂ = 0.5

Mole fraction of He = mole of He / Total mole

Mole fraction of He = 3.5/7

Mole fraction of He = 0.5

1. Determination of the partial pressure of H₂.

Mole fraction of H₂ = 0.5

Total pressure (Pₜ) = 4 atm

Partial pressure of H₂ =?

Partial pressure of H₂ = Mole fraction of H₂ × Pₜ

Partial pressure of H₂ = 0.5 × 4

Partial pressure of H₂ = 2 atm

2. Determination of the partial pressure of He.

Total pressure (Pₜ) = 4 atm

Partial pressure of H₂ = 2 atm

Partial pressure of He =?

Total pressure (Pₜ) = Partial pressure of H₂ + Partial pressure of He

4 = 2 + Partial pressure of He

Collect like terms

Partial pressure of He = 4 – 2

Partial pressure of He = 2 atm

What is the mass, in grams, of 0.0490 mol of iron(III) phosphate

Answers

Answer:

m = 7.39 g.

Explanation:

Hello!

In this case, since the molar mass of iron (III) phosphate is 150.82 g/mol based on its molecular formula (FePO₄), we can compute the mass in grams of 0.0490 moles of this compound by setting up the following dimensional analysis:

[tex]m=0.0490mol*\frac{150.82g}{1mol} \\\\m=7.39 g[/tex]

Best regards!

What are the amount of moles in 12.15 grams of Magnesium?

Answers

I think the amount would be a 0.4998 mol
I did moles=mass(g)/A,r
=12.5/24.3 to get that

Which characteristic is used to classify metamorphic rocks as foliated or non-foliated?

Answers

arrangement of grains

Answer: d. Arrangement of grains

Explanation:

Edge:)))

When does a chemical bond form between two atoms? Select one :
O a. When attractive forces are greater than repulsive forces.
O b. When potential energy is lowest for the pair.
O c. When potential energy is greatest for the pair .
O d. When repulsive forces are greater than attractive forces.

Answers

Answer A)
Hope that helps (:

Draw the Lewis structures for three resonance forms of the nitrate ion, NO−3 . Include electron lone pairs, and any formal charges.

Answers

Answer:

See explanation

Explanation:

The nitrate ion is a polyatomic ion. It means that the nitrate ion contains more than one atom. These atoms are one nitrogen atom and three oxygen atoms.

However, we can not fully describe the bonding in the nitrate ion using one structure. I have shown three resonance structures that describe the bonding in the nitrate ion in the image attached to this answer.

HURRY HELP 10 POINTS ILL GOVE BRAINLIEST I HAVE TO PASS PICTURE PROVIDED

Answers

Answer:

C₃H₄O₄

Explanation:

In order to get the empirical formula of a compound, we have to follow a series of steps.

Step 1: Divide the percent by mass of each element by its atomic mass.

C: 34.6/12.01 = 2.88

H: 3.9/1.01 = 3.86

O: 61.5/16.00 = 3.84

Step 2: Divide all the numbers by the smallest one, i.e., 2.88

C: 2.88/2.88 = 1

H: 3.86/2.88 ≈ 1.34

O: 3.84/2.88 ≈ 1.33

Step 3: Multiply all the numbers by a number that makes all of them integer

C: 1 × 3 = 3

H: 1.34 × 3 = 4

O: 1.33 × 3 = 4

The empirical formula is C₃H₄O₄.

Complete combustion of 3.10 g of a hydrocarbon produced 9.90 g of CO2 and 3.55 g of H2O. What is the empirical formula for the hydrocarbon

Answers

Answer: C9H16

Explanation:

molar mass C = 12.011, H = 1.008, O = 15.999, CO2 = 44.01, H2O = 18.00

9.9g CO2 = 0.225 mol, 3.55 g H2O = 0.200 mol

long way

molecules CO2 = 1.355x10^23 —> atoms of C

molecules H2O = 1.204x10^23 —> molecules H2

C:H2 = 1.355/1.204 = 1.125. —> C9H16

short way

molar massesCO2:H2O = 0.225:0.2 = 9:8

–> C9H16

verify

molar mass C9H16 =124

3.1g = 0.025 mol

oxidise C9H16 + 13O2 —> 9CO2 + 8H2O

0.025 mol + 13*0.025 mol (0.35mol) —> 9*0.025 + 8*0.025 —> 0.0.225 + 0.2

A student adds 34.2 mL of water to 72.3 mL of a 7.50 M glucose solution. (i) Will this solution be concentrated or dilute

Answers

Answer:

The solution will be dilute

Explanation:

The concentration of a solution is defined as the ratio between an amount of solute (Glucose, in this case) and an amount of solvent (Water in this case).

As the student is adding some water (Solvent), the amount of solute per amount of solvent will decrease. That is, if the concentration decreases,

the solution will be dilute

Which ball has the greatest potential energy?
Ball A
Ball B
Ball
All of the balls have the same amount of potential energy

Answers

i think that it would be ball A
Ball a

Hope that helper

The frequency of the stretching vibration of a bond in IR spectroscopy depends on what two quantities?

Answers

Answer:

Strength of the bond

Masses of the bonded atoms.

Explanation:

The lack of such groups means that they are not endogenous in the concentrate. 1. A bond's spreading frequency relies on the frequency of the bond and the concentrations of the atoms that are bonded.

What is meant by the term average mass ​

Answers

Answer:

Explanation:

The average atomic mass (sometimes called atomic weight) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element. Average masses are generally expressed in unified atomic mass units (u), where 1 u is equal to exactly one-twelfth the mass of a neutral atom of carbon-12.

How many moles are in 60.0 grams of water?

Answers

Answer:

3.33 mol H₂O

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TableUsing Dimensional AnalysisExplanation:

Step 1: Define

60.0 g H₂O (Water)

Step 2: Identify Conversions

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol

Step 3: Convert

Set up:                               [tex]\displaystyle 60.0 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O})[/tex]Multiply:                             [tex]\displaystyle 3.32963 \ mol \ H_2O[/tex]

Step 4: Convert

Follow sig fig rules and round. We are given 3 sig figs.

3.32963 mol H₂O ≈ 3.33 mol H₂O

can you make energy with ionized particles? yes or no and how

Answers

Answer: Yes.

Explanation:
Atoms or molecules can acquire a positive or negative electrical charge when they gain or lose electrons. This process is called ionization.

Hope this helps.

butyric acid has a putrid odor like rancid butter. If you got some of this material on your hands, how could you remove the odor

Answers

Answer:

The correct answer would be - the easiest way is to wash with some polar solvent or salt solution or soap and water

Explanation:

Butyric acid is a carboxylic acid that has a putrid odor like rancid butter. If an individual touch this chemical will have the same odor on his hand and to get rid of it one should wash his hand with a polar solvent such as methanol, or salt solutions such as like NaHCO3, or soap and water that will form sodium butyrate that has no smell and easily dissolve and remove.

Thus, the easiest way is to wash with some polar solvent or salt solution or soap and water

If a dog has a mass of 21.3 kg, what is its mass in the following units? Use scientific notation in all of
your answers.
(a) What is the dog's mass in grams?
eBook
x 10
g
Ask
(b) What is the dog's mass in milligrams?
Print
x 10
mg
References
(C) What is the dog's mass in micrograms?
x 10
ug

Answers

I think it would be a plx mark Brainly ist

A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated with 0.150 M HCl(aq). What volume of HCl(aq) is needed to completely neutralize the Ca(OH)2(aq)

Answers

Answer:

[tex]V_{HCl}=48.0 mL[/tex]

Explanation:

Hello!

In this case, since the reaction between calcium hydroxide and hydrochloric acid shows a 2:1 mole ratio between them:

[tex]2HCl+Ca(OH)_2\rightarrow CaCl_2+2H_2O[/tex]

We need to use the following mole ratio:

[tex]2n_{Ca(OH)_2}=n_{HCl}[/tex]

That can be written in volumes and concentrations:

[tex]2M_{Ca(OH)_2}V_{Ca(OH)_2}=M_{HCl}V_{HCl}[/tex]

Thus, we solve for the volume of HCl as it is the unknown:

[tex]V_{HCl}=\frac{2M_{Ca(OH)_2}V_{Ca(OH)_2}}{M_{HCl}}[/tex]

Therefore, we plug in to obtain:

[tex]V_{HCl}=\frac{2*0.120M*25.0mL}{0.150M} \\\\V_{HCl}=48.0 mL[/tex]

Best regards!

Gaseous butane CH3CH22CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is the theoretical yield of carbon dioxide formed from the reaction of 3.49g of butane and 17.1g of oxygen gas

Answers

Answer:

10.56 g

Explanation:

C4H10(g) + 13/2O2 (g) -------> 4CO2(g) + 5H2O(l)

Number of moles of butane = 3.49g/ 58 g/mol = 0.06 moles

1 mole butane yields 4 moles of CO2

0.06 moles of butane = 0.06 × 4/1 = 0.24 moles of CO2

Number of moles of oxygen = 17.1g/32g/mol = 0.53 moles of oxygen

6.5 moles of oxygen yields 4 moles of CO2

0.53 moles of oxygen yields 0.53 × 4/6.5 =0.33 moles of CO2

Butane is the limiting reactant

Theoretical yield of CO2 = 0.24 moles × 44g/mol = 10.56 g

a ______ is a single kind of matter that has a specific composition.

Answers

Answer:

SUBSTANCE

Explanation:

hope that help you thanx

Salad oil floats on water. Water has a density of 1.0 g/cm3. What can you say about the density of the salad oil?

Answers

Answer:

Density of the oil is lesser than that of the water

Explanation:

The density of water is given as 1.0g/cm³.

  Salad oil is found to float on water, this implies that the density of this salad oil is lesser than that of the water.

When the density of a substance is greater than another, it will sink. If the density of the salad oil is greater than that of water, then it will sink and not float. Since the oil floats on water, the density of the oil is lesser than that of the water.

Density is the mass per unit volume of a substance.

Other Questions
What is the main factor that determines how well two substances mix together? Which of the following tribes was particularly known for wanting more independence?A. Pawnee B. Sioux C. Osage D. Wichita You have read the poem Let America be America Again and an excerpt from A Place in El Paso: A Mexican-American Childhood. Write an essay in which you analyze how the setting of the poem affected the speaker and how the setting of the excerpt affected the narrator. Be sure to support your analysis with specific details from both texts. What is the purpose of an argument?(1 point)to share an opinion that is supported by evidenceto explain ways someone might disagree with youto share an idea that is supported by facts and examplesto list evidence you want to share with readers what role should the government play according to teddy roosevelt Where does Mr. Rochester plan on obtaining employment for Jane?The United StatesIndiaIrelandEngland (Foundations 2.04 MC)An example of a shared or concurrent power is the power toA. run electionsB. print moneyC. declare warD. make laws Pls help me Im failing 6.Would you have rather been a soldier on the ground or a pilot during the WWI? Explainwhy. How can the United States create anenviornment that will include all immigrants andkeep the new industrial economy moving Ok, nobody couldn't answer this, so Ill ask it again because I need to complete itWhat do you think happened after the Zhou dynasty fell?I really need the answer.. Escribe el verbo correcto en el preteritoAre they all correct What does the acronym SEATO stand for inregards to the Cold War? If triangle GFE is similar to triangle CBE, find FE. Type only the number inthe answer box. HELP THIS TEST IS MAD HARD! ILL GIVE BRAINLIEST(Uds.). Son _____ Flores.O susO suO nuestrasO ellos plz help im bad ill give brainlest What is the momentum of a 5 Kg dog running at 10 m/s? Students entering a medical program to become doctors are required to stay on campus from 8:00AM to 4:30PM. Today, they have forty-five minutes for lunch. Each student has a choice of eating lunch in a room where music is playing or a room where a television is on. For lunch, they have an option of pizza, hamburger, spaghetti, or chicken. What is the probability of choosing the television room with a hamburger?A. 1/8B. 1/4C. 2/3D. 1/6 PLEASE ANSWER QUICKLY I WILL GIVE BRAINLIEST ANSWER NO TROLLS What foreign policy did the United States follow in the period immediately following World War I?