Which two organ systems work together to provide cells with oxygen and to remove carbon
dioxide from the body?
(5 Points)

Mass of water : 0.45 g

Given

1.5 g ethanoic acid

Required

Mass of water

Solution

Reaction

CH₃COOH + NaOH ⇒H₂O + CH₃COONa

mol CH₃COOH(MW=60 g/mol) :

= mass : MW

= 1.5 : 60

= 0.025

mol H₂O from the equation :

= 0.025(mol ratio CH₃COOH : H₂O= 1 : 1)

Mass of water :

= mol x MW water

= 0.025 x 18 g/mol

= 0.45 g

Answer:

D. People continue to selectively breed plants and animals to produce predictable results.

Explanation:

Gregor Mendel's work with pea plants affect human life today as a result of his ability to produce different results and genetic composition of pea plants through his crossing methods.

This laid the foundation for people today to continue to selectively breed plants and animals to produce predictable results which has lots of advantages associated with it.

Answer:

1 : 10

Explanation:

For every second the car accelerates 10km/h  

Answer:

Explanation:

probably C

Answer:

[tex]Cr_2O_7^{2-}(aq)+2Cu^+(aq)\rightarrow Cu_2Cr_2O_7(s)[/tex]

Explanation:

Hello!

In this case, when writing net ionic equations, we first need to identify the complete molecular equation; thus for potassium dichromate reacting with copper (I) bromide, we have:

[tex]K_2Cr_2O_7(aq)+2CuBr(aq)\rightarrow Cu_2Cr_2O_7(s)+2KBr(aq)[/tex]

Thus, since all the species are aqueous except copper (II) dichromate, we can write the complete ionic equation by ionizing the aqueous ones:

[tex]2K^++Cr_2O_7^{2-}+2Cu^++2Br^-\rightarrow Cu_2Cr_2O_7(s)+2K^++2Br^-[/tex]

Finally, for the net ionic equation, we need to cancel out the spectator ions as they are present at both reactants and products sides, thus, we obtain:

[tex]Cr_2O_7^{2-}(aq)+2Cu^+(aq)\rightarrow Cu_2Cr_2O_7(s)[/tex]

Best regards!

Answer:

I think it is chemical because neutral makes me think of acidity, which is a chemical property.

Answer:

Citric acid

Explanation:

Answer:

On edge it is C or option 3 citric acid

Explanation:

Answer:

5.0X10 -6 M-

Explanation:

The second radiation is less energetic than the former because it has a longer wavelength.

Recall that;

c = λf

c = Speed of light

λ = wavelength

f = Frequency

Now;

λ = c/f = 3 × 10^8 m/s/6.00 x 10^13 s-1

λ = 5  × 10^-6 m

Also;

When f = 5.40 x 10^13 s^-1

λ = c/f = 3 × 10^8 m/s/5.40 x 10^13 s^-1

λ = 5.6 × 10^-6 m

This radiation is less energetic than the former because it has a longer wavelength.

Learn more: https://brainly.com/question/10038290

The second volume :  V₂= 1472.9 L

Further explanation

Given

980 L at 71 C and 107.2 atm

13 C and 59.3 atm

Required

The second volume

Solution

T₁ = 71 + 273 = 344 K

P₁ = 107.2 atm

V₁ = 980 L

P₂ = 59.3 atm

T₂ = 13 + 273 = 286 K

Use combine gas law :

P₁V₁/T₁ = P₂V₂/T₂

Input the value :

107.2 x 980/344 = 59.3 x V₂/286

V₂= 1472.9 L

Answer: PNS, CNS is

Periferal nervous system. Central nervous system.

Explanation:

Answer:

4.4 g

Explanation:

The equation of the reaction is;

NaHCO3 (aq) + CH3COOH (aq) ----> CO2 (g) + H2O (l) + CH3COONa (aq)

Mass of baking soda - 4.5 g

Molar mass of NaHCO3 = 84.007 g/mol

Number of moles of baking soda= 4.5 g/84.007 g/mol = 0.0536 moles

If 1 mole of NaHCO3 yields 1 mole of CH3COONa

0.0536 moles of NaHCO3 also yields 0.0536 moles moles of CH3COONa

Hence;

Theoretical yield of CH3COONa =  0.0536 moles * 82.0343 g/mol = 4.4 g

Answer:

no

Explanation:

Answer:

it will reach the house in 3 hours

Explanation:

20km x 3h = 60km

Answer:

It would be October 15th

Explanation:

Science is used to stop things the are incrediblu diffucult to deal with therefore jeg spiser ikke dreng

The answer is

It can identify the sources of polluted water.

Answer:

Explanation:

I think it is D

Answer:

After two hours, it is observed that Genevieve's Jar has less water than that of Alden.

Explanation:

The water in Genevieve's Jar didn't disappear. It was not drunk by the birds, it simply evaporated. Evaporation is what happens to liquid when they are heated. Water has three states: Solid (that is Ice), Liquid (that is the water which was put in the jar), and gas (vapor).

When water is exposed to heat sources like the sun, its molecules vibrate faster and escape into the atmosphere in form of vapor if the container has an opening.

When this happens for a prolonged period of time, the amount of water in the jar or container becomes less and less in volume.

This is not the case for the jar that was stored in a cool place where the water molecules remained stable.

Cheers

Answer:

Fe

Explanation:

Answer:

A. Thermal enerfy and light

Explanation:

Answer:

A

Hopefully this helped! :D

-LavenderVye

Answer:

It belongs to the last group with all the gas whose last shell are common and they are unreactive unlike to other elements which reacts to complete there last shell with total 8 electrons . Helium and Neon have in common that they have there shell complete and they reacts very less or they don't.

Explanation:

Hope it is helpful....

Answer:

E

Explanation:

Some of the properties are:

1. Gamma, γ-rays are not deflected by electric and magnetic fields. It shows that they do not have any charge.

2. Gamma, γ-rays are electromagnetic waves like X-rays. The wavelength of γ-ray photon is smaller than that of X-rays.

3. The rest mass of a Gamma, γ-ray photon is zero. (Photon has mass zero but it has momentum, why?)

4. Gamma, γ-rays travel with the speed of light.

5. Gamma, γ-rays have very large penetrating power. They can pass through several centimeter of iron and lead.

6. Gamma, γ-rays can produce fluorescene in a substance like willimite.

Explanation:

The smaller numbers in the image below represents the subscripts.

To Become or cause to become incorporated into a liquid so as to form a solution.

The process of changing from liquid to vapour.

To shape or force something straight, in a curve or angle.

___________________________________

Answer:

Explanation:

hc-- c--ct

The correct answer is option A: CH3COCH3

Hydrogen bonding occurs when hydrogen is directly bonded to a highly electronegative atom.

Hydrogen bonding is one of the intermolecular interactions. It occurs only when hydrogen is bonded to a very electronegative atom in a molecule. Hydrogen bonding can occur between two molecules of the same type(intermolecular hydrogen bonding) or within the same molecule (intra molecular hydrogen bonding). In either case, the bonding is polar as hydrogen is attached to the electronegative atom via a non-covalent bonding interaction.

Looking at the structures in the question attached, CH3COCH3 does not have any hydrogen atom directly attached to a highly electronegative atom hence CH3COCH3 does not exhibit hydrogen bonding.

Hydrogen bonding in water is shown in the image attached.

For more about hydrogen bonds, see

https://brainly.com/question/10904296