hey armies.. how are you doing​

Answers

Answer 1

Answer:

Nice and you

Explanation:

Please Mark me brainliest

Answer 2
you know it's kinda rough out here for us

Related Questions

Why are measurements important for science?
Pleaseee help me :( give two reasons why it's important

Answers

Answer:

measurements are important to do calculations to get correct results and without them scientists cannot form theories

What is the difference between an orbit in the Bohr model of the hydrogen atom and an orbital in the quantum mechanical model

Answers

Answer:

See explanation

Explanation:

In Bohr's theory, electrons are found in specific regions in space called orbits. These orbits are also called energy levels. An electron may move from one energy level to another by absorbing or emitting energy.

In the wave mechanical model, electrons are not found in a particular region in space according to Heisenberg's uncertainty principle.

We rather define a certain region in space where there is a high probability of locating the electron. This region in space where there is a high probability of locating the electron is called an orbital.

Hence, in the Bohr's model of the atom,electrons can surely be found in orbits while in the wave mechanical model, the orbital is a probability function that describes a region in space where an electron may be found.

What is the name of the process manufacturers use to make unsaturated fatty acids more solid at room temperature and prevent oxidation.

Answers

Answer:

Hydrogenation

Explanation:

Look up the definition to confirm

Nitrogen dioxide, a major air pollutant, can be produced by the combustion of nitrogen oxide as shown. 2NO + O2 Right arrow. 2NO2 In a plant, 1,500 kg of nitrogen oxide is consumed per day to produce 1,500 kg of nitrogen dioxide per day. What is the percent yield? Use Percent yield equals StartFraction actual yield over theoretical yield EndFraction times 100.. 21.7% 32.6% 43.5% 65.2% Mark this and return Save and Exit Next Submit

Answers

Answer:

65.2%

Explanation:

It is given that :

[tex]$2NO + O_2 \rightarrow 2NO_2$[/tex]

Therefore, 60 g of nitrogen oxide will produce 92 g of nitrogen dioxide

or 60 kg of nitrogen oxide will produce 92 kg of nitrogen dioxide

or 1500 kg of nitrogen oxide will produce [tex]2300\ kg[/tex] of nitrogen dioxide

Therefore the percentage yield = (Actual yield / Expected yield) x 100

percentage yield = [tex]$\frac{1500}{2300} \times 100$[/tex]

Percentage yield = 65.217 %

Answer:

the person above me is correct, the answer for this is 65.2% or option D!

Explanation:

thank you person above me! i got a 100% on the test! :D

Atoms are:
O A. One of the 4 elements that matter is composed of.
B. Connected by bonds to form compounds.
OC. The basic building blocks of matter.
O D. Heterogeneous and refer to color, texture, and appearance.
Reset Selection

Answers

Answer:c

Explanation: atoms make matter

Atoms are the basic building blocks of matter. The correct option is C.

What are atoms?

Atoms are the basic unit and building block of matter. They are the smallest unit, but they can be divided. They do not emit charge on dividing into the further, the smallest parts.

Atoms are further divided into electrons, protons, and neutrons. They are the charged particles that revolve in the shell of the atom. A nucleus is also present in the between of the atom.

Atoms are considered the building blocks of matter, as all matter is made up of many atoms. The configuration of the atom defines the state of matter.

Thus, the correct option is C. The basic building blocks of matter.

To learn more about atoms, refer to the link:

https://brainly.com/question/1566330

#SPJ5

3. If there were multiple products comment on finding the mixture melting point of the products. Does your sample appear to be a mixture or pure

Answers

Answer:

If there were multiple products, we can take each product and mixed with a sample of a pure compound that we suspect might be the same as the product. Then, we taking the melting point of this mixture that contains one of our product and pure sample. Then, we can observe the change in melting point, if there is no change in melting point or the melting stays in the same range of the pure compound. Then, the that product along with the pure sample are actually the same compound, not a mixture of two compounds. However, if the melting point for our pure sample compound changed or didn't stay in the same range after the mixing with on of our products. then we can conclude that this product and the pure sample are completely different compound, and indeed they are a mixture.

Which of the following statements about the nucleus is false?


A. Contains nearly all of the mass of the atom.

B. Able to be lost or gained in chemical reactions.

C. None of these

D. Made up of protons and neutrons

Answers

Answer:

B. Able to be lost or gained in chemical reactions.

Answer:

B

Explanation:

a chemical reaction would only move the nucleas

Write the test for the following Gases.
Co2, H2,Cl2, Br2,
SO2,
NO2, ​

Answers

Answer:

oh no!! I can't do this ;(

Explanation:

oopsie "BrO" I can't do this pleaseee.

don't be selfish next time and maybe people will help you...

8. A saturated solution of Ag Croq has a silver-ion concentration of 1.3 x 10-4M. Which is the Ksp of Ag CrO 4?
O 1.3 x 10-4
O 3.9 x 10-12
O 6.5 x 10-5
O 1.1 x 10-12

Answers

Answer: The [tex]K_{sp}[/tex] of [tex]AgCrO_{4}[/tex] is [tex]1.1 \times 10^{-12}[/tex].

Explanation:

Given: [tex][Ag^{+}] = 1.3 \times 10^{-4} M[/tex]

The reaction equation will be written as follows.

[tex]Ag_{2}CrO_{4} \rightleftharpoons 2Ag^{+} + CrO^{2-}_{4}[/tex]

This shows that the concentration of [tex]CrO^{2-}_{4}[/tex] is half the concentration of [tex]Ag^{+}[/tex] ion. So,

[tex][CrO^{2-}_{4}] = \frac{1.3 \times 10^{-4}}{2}\\= 0.65 \times 10^{-4} M[/tex]

The expression for [tex]K_{sp}[/tex] of this reaction is as follows.

[tex]K_{sp} = [Ag^{+}]^{2}[CrO^{2-}_{4}][/tex]

Substitute values into the above expression as follows.

[tex]K_{sp} = [Ag^{+}]^{2}[CrO^{2-}_{4}]\\= (1.3 \times 10^{-4})^{2} \times 0.65 \times 10^{-4}\\= 1.1 \times 10^{-12}[/tex]

Thus, we can conclude that the [tex]K_{sp}[/tex] of [tex]AgCrO_{4}[/tex] is [tex]1.1 \times 10^{-12}[/tex].

.......................

Answers

...

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How are carbon-based molecules suited for sustaining life?

Answers

[tex]\huge\fcolorbox{red}{pink}{Answer ♥}[/tex]

Life on Earth is based on carbon, likely because each carbon atom can form bonds with up to four other atoms simultaneously. This quality makes carbon well-suited to form the long chains of molecules that serve as the basis for life as we know it, such as proteins and DNA.

Hope it helps uh ✌️✌️✌️

Calculate the average atomic mass for element X

Answers

Answer:

39.02

Explanation:

From the question given above, the following data were obtained:

Isotope A:

Mass of A = 38

Abundance of A (A%) = 9.67%

Isotope B:

Mass of B = 39

Abundance of B (B%) = 78.68%

Isotope C:

Mass of C = 40

Abundance of C (C%) = 11.34%

Isotope D:

Mass of D = 41

Abundance of D (D%) = 0.31%

Average atomic mass of X =?

The average atomic mass of X can be obtained as follow:

Average = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100] + [(Mass of D × D%)/100]

= [(38 × 9.67)/100] + [(39 × 78.68)/100] + [(40 × 11.34)/100] + [(41 × 0.31)/100]

= 3.6746 + 30.6852 + 4.536 + 0.1271

= 30.02

Thus, the average atomic mass of X is 39.02

different oil refineries in UAE

Answers

Answer:

Petroleum refinery capacity in the UAE 2009-2018

In 2018, the total production capacities of all refineries in the UAE were 1.13 metric barrels per day. Total total production capacity of the al-Ruwais refinery in the United Arab Emirates was approximately 817,000 metric barrels per day.

Explain specifically how an electron gives off light in an atom.

Answers

Answer:

Then, at some point, these higher energy electrons give up their "extra" energy in the form of a photon of light, and fall back down to their original energy level.

Explanation:

When properly stimulated, electrons in these materials move from a lower level of energy up to a higher level of energy and occupy a different orbital.

Calculate the average atomic mass for element X(please help)

Answers

Answer:

Wt Avg At Mass = 39.0229 amu

Explanation:

The Weight Average Atomic Mass in atomic mass units (amu) is the sum of the Weight Average Mass contributions of each isotopic mass. That is,

Wt. Avg. At. Mass (amu) = ∑ Wt. Avg. Contributions of each isotopic mass

Wt. Avg. Contribution = fractional abundance x isotopic mass(amu)

For this problem data:

Isotope   %Abundance     fractional         Isotopic             Wt Avg Isotopic

                                        abundance      mass(amu)        Contribution (amu)

   1                  9.67%           0.0967               38                      3.6746 amu

   2               78.68%           0.7868               39                    30.6852 amu

   3                 11.34%           0.1134                 40                      4.5360 amu

   4                  0.31%           0.0031                41                       0.1271  amu

________________________________________________________

Wt. Avg. Atomic Mass (amu) = ∑ Wt. Avg. Contributions  =  39.0229 amu

Can someone please do a True or false for these PLEASE

Answers

My boy this is to easy it’s true

Answer:

true

false

false

true

false

true

true

false

false

true

true

Solubility of which salts does not dependent on temperature.Any three.

Answers

Answer:

any salt

sodium chloride

callcium chloride

potassium chloride

Explanation:

There is no general effect of temperature on the solubility of salts.effect of increase temperature on the solubilty of NaCl is not significant because it is more soluble even at low temperature. The salt like potassium iodide (KI) has negative heat of solution so it's solubility decreases with increase of temperature…

A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water, flask, and metal is 268.5 g. If the mass of the flask is 139.3 g and the density of water is 1.000 g/mL, the density of the solid is ________ g/cm3.

Answers

Answer:

Density of the solid=[tex]2.78 g/cm^3[/tex]

Explanation:

We are given that

Mass of sample of metal=4.369 g

Volume in the flask, V=126.4 ml

Mass of water, flask, and metal=268.5 g

Mass of flask=139.3 g

Density of water=1.000 g/mL

We have to find the density of the solid.

Mass of water=268.5-4.369-139.3=124.831 g

Volume of water=[tex]\frac{Mass\;of\;water}{density\;of\;water}[/tex]

Volume of water=[tex]\frac{124.831}{1}=124.831 mL[/tex]

Volume of solid=126.4 ml-124.831 mL

=1.569mL

Now,

Density of the solid=[tex]\frac{mass\;of\;solid}{volume\;of\;solid}[/tex]

=[tex]\frac{4.369}{1.569}[/tex]

[tex]=2.78g/mL[/tex]

1mL=1 cubic cm

Therefore,

Density of the solid=[tex]2.78 g/cm^3[/tex]

How many moles of atoms does H2O

Answers

3 atoms, so there are approximately 1.8 x 1024 atoms in a mole of water.

What phrase describes a good scientific question?
has a wide focus
addresses a gap in knowledge
does not lead to a testable hypothesis
O has a simple yes or no answer
vious Activity

Answers

address a gap in knowledge

Help ASAP only right answers only no spam don’t answer if you don’t know

















Answers

Answer: Solve problems

The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction _____.

Answers

Is the reductant and is being oxidised

Which natural law do biogeochemical cycles address?

Answers

Im not completely sure but It might be Cycling of Matter

what is chemical reaction?​

Answers

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Or

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

El fluoruro de hidrógeno HF que se utiliza en
la obtención de los freones (los cuales
destruyen la capa de ozono de la
estratosfera), se prepara mediante la
siguiente reacción: CaF2 + H2SO4
CaSO4 + 2HF Si se hacen reaccionar 50gr
de CaF2 con 100 gr de H2SO4 (masas
atómicas Ca=40,F=19, H=1, S=32, O=16)

Answers

Answer:

25.6g de HF son producidos

Explanation:

...¿Cuánto HF es producido?

Para resolver este problema debemos convertir la masa de cada reactivo a moles usando su masa molar. Como la reacción es 1:1, el reactivo con menor número de moles es el reactivo limitante. Con las moles del reactivo limitante podemos obtener las moles de HF y su masa así:

Moles CaF2:

Masa molar:

1Ca = 40g/mol

2F = 19*2 = 38g/mol

40+38 = 78g/mol

50g CaF2 * (1mol/78g) = 0.641 moles CaF2

Moles H2SO4:

Masa molar:

2H = 2g/mol

1S = 32g/mol

4O = 64g/mol

98g/mol

100g H2SO4 * (1mol / 98g) = 1.02 moles H2SO4

Como las moles de CaF2 < Moles H2SO4: CaF2 es reactivo limitante.

Moles HF usando la reacción:

0.641 moles CaF2 * (2mol HF / 1mol CaF2) = 1.282 moles HF

Masa HF:

Masa molar:

1g/mol + 19g/mol = 20g/mol

1.282 moles HF * (20g/mol) =

25.6g de HF son producidos

How many molecular of H2O and O2 are present in 8.5g of H2O2 ?​

Answers

2H2O+O2--->2H2O2  

8.5 gm H2O2=0.25 mole  

hence H2O is also 0.25 mole i.e.4.5 gm  

O2is 0.125 mole i.e.4 gm

Why Should a magnesium ribbon be cleaned before burning ?​

Answers

A magnesium ribbon is cleaned to remove the protective layer of basic magnesium carbonate from its surface, so that it may readily combine with the oxygen in air (on heating).

Answer:

Magnesium gets covered with a layer of magnesium oxide when kept in air for a long time. This layer hinders the burning of magnesium. Hence, it is to be cleaned before burning.

alculating Displacement under Constant Acceleration
Use the information from the graph to answer the
question
What is the total displacement of the object?
m
Velocity vs. Time
40
30
Velocity (m/s)
20
10
0
0
5
10
15
20
25
Time (s)
Intro
Done
ODO
ODDO
tivity

Answers

Answer:

[tex]10 {7}^{2} = [/tex]

The ground state of an electron is the least stable energy state of an atom

Answers

Answer:

electron configuration

Explanation:

The arrangement of electrons in the atomic orbitals of an atom is called the electron configuration. Electron configurations can be determined using a periodic table.

what is the application of chemistry​

Answers

Answer:

Chemistry plays an important and useful role towards the development and growth of a number of industries. This includes industries like glass, cement, paper, textile, leather, dye etc. We also see huge applications of chemistry in industries like paints, pigments, petroleum, sugar, plastics, Pharmaceuticals.

Other Questions
Fill in each box with the probability of the event that it represents. The following questions can be answered using your area model.pleeeeaaseee help!!!! Rhonda walked diagonally across a rectangular playground with dimensions 60 m by 45 m. She started at point C. Determine the angle, to thenearest degree, between her path and the longest side of the playground.B45mD60 m what did the writer do to restrin the big langur form killing the bady langur? What is the difference between independent and dependent demand. Group of answer choices independent iemand is based on market forces while Dependent demand is based on production schedule dependent demand is what determines independent demand independent demand is based on dependent demand dependent demand is based on sales while independent demand is based on management decisions Find the value of a.A. 58B. 130C. 86D. 65 1. Calpurnia2. Cassius3. Brutus4. Marullus5. Antony Stephanie volunteers at an organization that collects and distributes clothing to those in need. As she is packing boxes to send overseas, she finds a donated item of clothing that perfectly suits her sense of style and would be a versatile item to add to her own wardrobe. Stephanie sets the item aside to take home with her. According to virtue-based ethics, why is Stephanie's action unethical? Stealing is always wrong. Her action cultivates the vice of greed. Her action will deprive needy recipients of clothing. She is not following the instructions she was given. Nancy took a breath and gathered her thoughts. She imagined that passing through the gray-zone door into Level 4 was like a space walk, except that instead of going into outer space, you went into inner space, which was full of the pressure of life trying to get inside your suit. People went into Level 4 areas all the time at the Institute, particularly the civilian animal caretakers. But going into a containment zone to perform a necropsy on an animal that had died of an amplified unknown hot agent was something a little different. This was high-hazard work. The central idea of this excerpt is that working in a containment zone is very dangerous. Which phrases from the excerpt most support the central idea Forming a hypothesis is the first step of the scientific method. Find the interior angle sum for the following polygon if the cost of 5 dozen of copies is rupees 60 what is the cost of 33 such copies ITS IN THE PICTURE!!! As a person BAC level increase it becomes difficult for them to judge their vehicle distances and speed (03.04) Use the graph below for this question: What is the average rate of change from x = 3 to x = 5? (1 point) A.1B.0 C.1 D.8 What is the difference between these two linear equations? Y=3x - y=-3x help it's due in 20 minutes 52degreesPLEASEHEHEH the ages of two students are in the ratio of 3:5,if the older is 40yrs. How old is the younger student use determinants to find the area of the parallelogram shown below