a force of 29 N and acceleration is 0.4 m/s what is the combined mass

Answers

Answer 1

Answer:

72.5Kg

Explanation:

that is the procedure above

A Force Of 29 N And Acceleration Is 0.4 M/s What Is The Combined Mass

Related Questions

I para realizar un receta casera de bizcocho se necesitan 100 gramos de azúcar, calcula los moles a los que equivale y el número de moléculas de sacarosa.

Answers

The complete question is as follows: I want to make a homemade cake recipe you need 100 grams of sugar, calculate the moles to which it is equivalent and the number of molecules of sucrose.

Answer: In 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are [tex]1.76 \times 10^{23}[/tex].

Explanation:

Given: Mass = 100 g

Molar mass of sugar = 342.3 g/mol

As number of moles is the mass of substance divided by its molar mass.

Hence, moles of sucrose are calculated as follows.

[tex]Moles = \frac{mass}{molar mass}\\= \frac{100 g}{342.3 g/mol}\\= 0.292 mol[/tex]

According to mole concept, 1 mole of every substance contains [tex]6.022 \times 10^{23}[/tex] molecules.

Hence, the number of molecules present in 0.292 mol are calculated as follows.

[tex]0.292 mol \times 6.022 \times 10^{23}\\= 1.76 \times 10^{23}[/tex]

Thus, we can conclude that in 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are [tex]1.76 \times 10^{23}[/tex].

What element has 16 electrons, 16 protons, and 16 neutrons

Answers

Answer:

The element that has 16 electrons, 16 protons, and 16 neutrons is sulfur (S)

Explanation:

The atomic number tell you the number of protons.

The atomic configuration tell you the number of electrons.

The mass number minus the protons tell you the number of neutrons.

if you have 5.42 x 1024 aluminum atoms, approximately how many moles is that​

Answers

Answer:

It is approximately 9 moles

Explanation:

Divide the aluminum atoms by Avogadro's number

(5.42*10^24)/(6.02*10^23)

= approx. 9 moles

How would it have been if particles of matter had no space?

Answers

Answer:

Matter is made of small particles of atoms or molecules. ... The particles in the solid are touching with very little space between them. The particles in a liquid usually are still touching but there are some spaces between them. The gas particles have big distances between them.

PLEASE HELP !!!

Which of the following measurements is used to measure the enthalpy of combustion?

A. Measuring the change in temperature when two liquids are mixed.
B. None of these
C. Measuring the change in temperature of a beaker of water.
D. It cannot be measured, only calculated using the equation: q = mc∆T.

Answers

Explanation:

measuring the change of temperature when 2 liquids are mixed

How many moles of aluminum oxide are produced when 6 moles of oxygen gas react?
4Al + 3O2 → 2Al2O3

Answers

Answer:

4 moles of aluminum and 6 moles of oxygen are produced

What is the standard reduction potential, e, for the half-reaction Zn2+(aq) +2e → Zn(s)?
A. -0.76 V
B. -1.68 V
C. -2.37 v
D. -2.71 V

Answers

The standard reduction potential for the half-reaction Zn²⁺(aq) + ⁻2e → Zn(s) is -0.76 V; option A

What is standard reduction potential?

The standard reduction potential of a chemical species is the a measure of the potential of a given chemical species to be reduced rather than being oxidized.

This measurement is done under standard conditions of concentration, pressure and temperature.

The standard reduction potential for the half-reaction Zn²⁺(aq) + ⁻2e → Zn(s) is -0.76 V.

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4Fe (s) + 3 O2 (g) → 2 Fe2O3 (s)
A. What is the oxidation number for each item in this equation?
B. What is being oxidized?
C. What is being reduced?
D. What is the oxidizing agent?
E. What is the reducing agent?

Answers

Explanation:

The number acquired by an element after the lose or gain of an electron is called oxidation number.

For example, [tex]4Fe(s) + 3O_{2}(g) \rightarrow 2Fe_{2}O_{3}(s)[/tex]

Here, oxidation number of Fe(s) is 0 and Fe in [tex]Fe_{2}O_{3}[/tex] is +3.

Oxidation number of O in [tex]O_{2}(g)[/tex] is 0 as it is present in its elemental state.

The oxidation number of O in [tex]Fe_{2}O_{3}[/tex] is calculated as follows.

[tex]2(3) + 3x = 0\\6 + 3x = 0\\x = \frac{-6}{3}\\= -2[/tex]

Hence,  oxidation number of O in [tex]Fe_{2}O_{3}[/tex] is -2.

The loss of electrons by an element or substance is called oxidation. Here, electrons are being lost by Fe(s) as an increase in oxidation state is occurring. So, Fe(s) is oxidized.The gain of electrons by an element or substance is called reduction. Here, electrons are being added to [tex]O_{2}[/tex] as a decrease in its oxidation state is occurring. So, [tex]O_{2}[/tex]  is reduced.An element or compound which is being reduced is called oxidizing agent. Here, [tex]O_{2}[/tex]  is the oxidizing agent.An element or compound which is being oxidized is called reducing agent. Here, Fe(s) is the reducing agent.

A water pipe bursting in the winter is a result of which type of weathering?
A. Biological
B. Freeze-thaw
C. Exfoliation
D. Chemical

Answers

Answer:

Freeze-thaw

Explanation:

Water expands slightly when it freezes to form ice. This is why water pipes sometimes burst in the winter. You might have seen a demonstration of this sort of thing - a jar filled to the brim with water eventually shatters after it is put into a freezer. The formation of ice can also break rocks.

URGENT !!!

Which of the following pairs lists a substance that can neutralize Ca(OH)2 and the salt that would be produced from the reaction? (3 points)
HCl and CaCl2
HClO and CaHClO
H2O and Ca(OH)3
H3PO4 and Ca(PO3)2

Answers

HCl and CaCl2

I took the test and it wright

The correct pair that lists a substance that can neutralize [tex]\rm Ca(OH)_2[/tex] and the salt that would be produced from the reaction is HCl and [tex]\rm CaCl_2[/tex].

A reaction is a process that involves the transformation of one or more substances into one or more different substances.

When HCl (hydrochloric acid) reacts with [tex]\rm Ca(OH)_2[/tex] (calcium hydroxide), they undergo a neutralization reaction. The HCl donates a hydrogen ion ([tex]\rm H^+[/tex]) to the  [tex]\rm Ca(OH)_2[/tex], resulting in the formation of water ([tex]\rm H_2O[/tex]) and [tex]\rm CaCl_2[/tex] (calcium chloride).

The reaction can be represented as follows:

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

Therefore, HCl is an acid that can neutralize [tex]\rm Ca(OH)_2[/tex] and the salt produced from this reaction is  [tex]\rm CaCl_2[/tex].

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How many total atoms are there in 60.3 g of carbon monoxide (CO)?
total atoms:
atoms

Answers

Explanation:

moles = mass/mr

=60.3/28

=2.15 moles

number of particles = moles × 6.02×10^23

= 2.15×6.02×10^23

= 1.29×10^24 atoms

CO=12+16=28

PLEASE SOMEONE! The density of the acetic acid solution is 1.05 g/mL. Calculate the %(m/m) of the acetic acid solution (convert mol/L to %(m/m)).
CH3COOH(aq) + NaOH(aq) = CH3COOHNa(aq) + H2O(L)
Volume of CH3COOH = 0.1L
Titration Equation: CH3COOH(aq) + NaOH(aq) = CH3COOHNa(aq) + H2O(L)
Concentration of CH3COOH = 0.243 mol/L

Answers

Answer:

The Percentage concentration of acetic acid = 1.39 %

Explanation:

Density of acetic acid solution = 1.05 g/mL

Volume of acetic acid solution = 0.1 L = 100 mL

From the formula, Density = mass / volume; mass = density × volume

Mass of acetic acid solution = 1.05 g/mL × 100 mL = 105 g

Molar concentration of acetic acid solution = 0.243 mol/L

Molar mass of acetic acid, CH₃COOH = (12 × 2 + 1 ×4 + 16 ×2) = 60 g/mol

From the formula, mass concentration = molar concentration × molar mass

Mass concentration of acetic acid, CH₃COOH = 0.243 mol/L × 60 g/mol = 14.58 g/L

In one liter of acetic acid solution, there are 14.58 g of acetic acid. Therefore, in 0.1 L, there will be 14.58 × 0.1 = 1.458 g of acetic acid.

Percentage concentration of acetic acid = mass of acetic acid / mass of acetic acid solution × 100%

Percentage concentration of acetic acid = (1.458 / 105) × 100% = 1.39 %

The Percentage concentration of acetic acid = 1.39 %

potential (P) energy or kinetic (K) energy

Runners “on their marks” at the start line of a race _____

Answers

Potential energy, kinetic energy would be if they were already running

If a speaker is moved from 2 feet away to 4 feet away, the volume of the sound will: half double quarter stay the same

Answers

Answer:

the volume of the sound will quarter

Explanation:

As you move far away from the source, the loudness of sound decreases. This is because as the distance from the source increases, the area it covers also increases thereby spreading the energy over a great area leading to lesser loudness and intensity.

As a result of this, sound intensity follows an inverse square law:

I ∝ 1/d²; where I is the intensity and d is the distance from source.

Therefore If a speaker is moved from 2 feet away to 4 feet away (increment of 2 feet), the volume of the sound would quarter (1/2² = 1/4)

Write a nuclear equation for the beta decay of Promethium-165

Answers

Answer:

see your answer in pic

Explanation:

There can be emissions of radiations like gamma radiation. There can be emission of particles too like alpha particle. Therefore, the nuclear equation for the beta decay of Promethium-165 is

¹⁶⁵Pm[tex]\rightarrow[/tex]⁰e₋₁  +  ₆₂Sm¹⁶⁵

What is nuclear decay?

Nuclear decay is process in which the radioactive element releases particles or radiations. Alpha particles is ⁴₂He. Alpha particle is nothing but helium particle. The kinetics that is related to nuclear decay is of first order.

The nuclear equation for the beta decay of Promethium-165 is

¹⁶⁵Pm[tex]\rightarrow[/tex]⁰e₋₁  +  ₆₂Sm¹⁶⁵

Beta decay of  Promethium-165 is the emission of electron particle from the given isotope. the product is Samarium  ₆₂Sm¹⁶⁵.

Therefore, the nuclear equation for the beta decay of Promethium-165 is

¹⁶⁵Pm[tex]\rightarrow[/tex]⁰e₋₁  +  ₆₂Sm¹⁶⁵

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What is the empirical formula of a compound containing 5.03 g carbon, 0.42 g hydrogen, and 44.5 g of chlorine

Answers

Answer:

CHCl₃

Explanation:

We have the following data:

C = 5.03 g

H = 0.42 g

Cl= 44.5 g

First, we divide each mass by the molar mass (MM) of the chemical element to calculate the moles:

MM(C) = 12 g/mol

moles of C = mass/MM(C) = 5.03 g/(12 g/mol) = 0.42 mol C

MM(H) = 1 g/mol

moles of H = mass/MM(H) = 0.42 g/(1 g/mol) = 0.42 mol H

MM(Cl) = 35.4 g/mol

moles of Cl = mass/MM(Cl) = 44.5 g/(35.4 g/mol) = 1.26 mol Cl

Now, we divide the moles by the smallest number of moles (0.42):

0.42 mol C/0.42 = 1 C

0.42 mol H/0.42 = 1 H

1.26 mol Cl/0.42 = 3 Cl

Thus, the C:H:Cl ratio is 1:1:3.

Therefore, the empirical formula is CHCl₃

Answer:

CHCl₃

Explanation:

Which mathematical statement shows the formula for weight?

Answers

Answer

(:

Weight is basically  a measure of theme  force of gravity pulling down on an object. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object's weight in Newtons (N) and m is the object's mass in kilograms.

Explanation:

Which electron in an atom (Z=17) is the most shielded from
nuclear charge?
A. an electron in the 2s
B. an electron in the 3p
C. an electron in the 3d
D. an electron in the 1s

Answers

Answer:

option no. C is correct

an electron in the 3d

_______ reach the surface first during an earthquake.


Rayleigh waves


P waves


Love waves


S waves

Answers

Answer:p waves hope that helps

A. The sequence of bases in one DNA strand is given below. Identify the complementary sequence of bases
in the other strand of DNA.
1.
А A
с
T
С
T
G
C
с
А
T​

Answers

Answer:

The complementary sequence of bases in the complementary strand of the given single DNA strand AACTCTGCCAT will be:

TTGAGACGGTA

Explanation:

The primary structure of DNA is a double-stranded helix of nucleotides linked to each other by phosphodiester linkages. The two strands of the DNA molecule is complementary to each other. While one strand is linked in the 3' to 5' direction, the other strand is linked in the 5' to 3' direction. The two strands are held together by hydrogen bonds between the nucleotides of the two strands and this is known as base pairing. In base pairing, adenine nucleotide, A, on one strand forms two hydrogen bonds with thymine nucleotdie, T, in the other strand. Also, guanine nucleotide, G, in one strand, forms three hydrogen bonds with cytidine nucleotide, C, in the complementary strand.

Therefore, once the nucleotide sequence of one DNA strand is known, the nucleotide sequence of the complementary strand can easily be deduced.

The complementary sequence of bases in the complementary strand of the given single DNA strand AACTCTGCCAT will be: TTGAGACGGTA

list three common examples of solute​

Answers

Answer:

sugar, salt, oxygen

Explanation:

hope these work

Answer:

Examples of solutes include sugar, salt, oxygen, etc. There are numerous examples of solutions. For example, milk (solvent) and sugar (solute) make sweet milk. Air is made up of gases (oxygen, nitrogen, carbon dioxide, etc.).

Explanation:

2 NH3 + 3 CuO --> 3 Cu + N2 + 3 H2O

In the above equation, how many moles of N2 can be made when 113.6 grams of CuO are consumed?

Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect. :

Element Molar Mass

Hydrogen

1

Nitrogen

14

Copper

63.5

Oxygen

16

Answers

Answer: 0.5 moles of [tex]N_2[/tex] are produced in the reaction

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

The equation used is:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] ......(1)

Given mass of [tex]CuO[/tex] = 113.6 g

Molar mass of [tex]CuO[/tex] = 79.5 g/mol

Plugging values in equation 1:

[tex]\text{Moles of CuO}=\frac{113.6g}{79.5g/mol}=1.43 mol[/tex]

For the given chemical reaction:

[tex]2NH_3+3CuO\rightarrow 3Cu+N_2+3H_2O[/tex]

By the stoichiometry of the reaction:

If 3 moles of [tex]CuO[/tex] produces 1 mole of [tex]N_2[/tex]

So, 1.43 moles of [tex]CuO[/tex] will produce = [tex]\frac{1}{3}\times 1.43=0.476=0.5mol[/tex] of [tex]N_2[/tex]

Hence, 0.5 moles of [tex]N_2[/tex] are produced in the reaction

.A volumetric pipette is used to measure 25.0cm3 of 2.0mol/dm3 aqueous sodium hydroxide into aconical flask.A burette is filled with dilute sulfuric acid. Write a balanced symbol equation for the reaction between these chemicals when we neutralise.

Answers

Answer:

A volumetric pipette is used to measure 25.0cm3 of 2.0mol/dm3 aqueous sodium hydroxide into aconical flask.

A burette is filled with dilute sulfuric acid.

Write a balanced symbol equation for the reaction between these chemicals when we neutralise.

Explanation:

The reactants of the given reaction are:

sodium hydroxide and dilute sulfuric acid.

The balanced chemical equation of the reaction is:

[tex]H_{2}SO_{4} (aq) + 2NaOH(aq) -> Na_{2} SO_{4} (aq)+ 2H_{2} O(l)[/tex]

Acid and base raect with each other and form salt and water.

This reaction is called a neutralization reaction.

how many moles are in 3.25188x10^24 molecules of CO2

Answers

Answer:  C is right

Explanation:  One mole is 6.022 x 10^23 molecules.

Dividing 3.25188 x 10^24 / 6.022 x 10^23 = 5.4 moles

What is the pH of a solution with [H+] concentration of 1.86 x 10-5?
a.5.37 x 10-10
b.9.3
c.4.7
d.1.86 x 10-5

Answers

Answer:

4.7

Explanation:

The pH of a solution can be found by using the formula

[tex]pH = - log [ {H}^{+} ][/tex]

From the question we have

[tex]ph = - log(1.8 \times {10}^{ - 5} ) \\ = 4.7447[/tex]

We have the final answer as

4.7

Hope this helps you

ANSWER THE QUESTION TO GET BRAINLIST

When sunlight travels from the vacuum of space into Earth's atmosphere it slowed down slightly. Explain why and name the light principle involved.

Answers

It is thought that global dimming is probably due to the increased presence of aerosol particles in Earth's atmosphere, caused by pollution, dust, or volcanic eruptions. Aerosols and other particulates absorb solar energy and reflect sunlight back into space. ... Water droplets in clouds coalesce around the particles.

Global Dimming

source:

wikipedia via gooogle snippet

Rank them from the smallest to the largest

Answers

electrons

protons

atom

compounds

mixtures

PLEASE HELP : Arrange the following elements into a food chain: plants, snake, Sun, hawk, and mouse.

Answers

Answer:

Plants ➯ Mouse ➯ Snake ➯ Hawk ➯ Sun

Explanation:

In Order As A Food Chain

The elements are arranged into food chain like plants ⇒Mouse ⇒ Snake⇒ Hawk ⇒ Sun.

What is element?

A substance that could not be further decomposed according to any chemical reaction is known as a chemical element.

What is food chain?

The flow of nutrients as well as energy through such an ecosystem is described by a food chain. Energy is first produced by plants at the most fundamental level, and then it is used by higher-level species like herbivores. Energy is then transmitted from one carnivore to the next when they eat the herbivores.

The elements are arranged into food chain like plants ⇒Mouse ⇒ Snake⇒ Hawk ⇒ Sun.

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Use the activity series below to predict whether the following reactions will take place.

Answers

first one is yes second one is no :)

Answer:

first one is yes, second one is no

Explanation:

edge

Please somone help me with a chemistry question brainliest to whoever answers correctly and 20 points

Answers

Answer:

chlorine is larger so the symbol is <

Explanation:

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