solve B in a complete combustion pleaseee

Answer:

what do you need help with .

Explanation:

?

Answer:

Based on stoichiometry HNO3 to H2O is 6:2

Use 9 grams to find the moles of HNO3

9 grams/63g/mol=0.143 moles of HNO3

HNO3:H2O

6:2

0.143*2/6=0.048

H2O moles is 0.048moles

Mass of water =0.048moles*18g/mol=0.864g

To the nearest tenth=0.9grams

( sorry if its not right)

Answer:

you can also get oxygen from the mouth but you get more from the nose so i would chose nose

To convert it in Kg/m³ divide by 1000 and multiple with 10⁶

[tex]Density = 0.2 \: \times \frac {{10}^{6} }{10 {}^{3} } = 0.2 \times {10}^{3} \\ Density = 200 \: kg \: m {}^{ - 3} [/tex]

Answer:

(80.0, 20.0) The statement states that 80% of the compound is carbon. To acheive the amount of carbon in a 100 g sample, you need to multiply the weight of the sample by the percentage of carbon in the compound. Recall that 80%=80/100=.8 .8*100g=80g of carbon. The same process goes for the hydrogen. .2*100g=20g hydrogen.  Explanation:

From what we know we can confirm that currently, the primary source of sulfur dioxide of emissions into the atmosphere is coal and other fossil fuel burning in industry.

From what we know, this compound has proved to be quite toxic for humans to breathe. Increased concentrations of this in the atmosphere lead to increased rates of lung disease among other health complications.

Therefore, we can confirm that the primary source of sulfur dioxide of emissions into the atmosphere is coal and other fossil fuel burning in industry.

To learn more about pollution visit:

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The solute in this case would be sodium chloride and sucrose.

Solutes are substances capable of dissolving in solvents to give homogenous mixtures known as solutions.

In this case, both sodium chloride and sucrose were added to water - water is acting as the solvent.

Sodium chloride is soluble in water and so also is sucrose.

Thus, a homogenous mixture of sodium chloride and sucrose would result.

More on solutes can be found here: https://brainly.com/question/7932885

Thrust acts on the spacecraft and propels in the space.

1. The force created by the shuttle's engines in expelling the burning fuel produces an equal thrust in the opposite direction. This thrust acts on the spacecraft and propels in the space.

2. The thermosphere and the stratosphere are our hottest atmosphere layers because these two layers are present near the sun as compared to other layers of atmosphere.

3. When the meteors hit the atmosphere, meteors rub against air particles and create friction which is heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.

Learn more about atmosphere here: https://brainly.com/question/24925283

Answer:

The London dispersion force is a temporary attractive force that results when the electrons in two nearby atoms of two different molecules occupy positions that make the atoms form temporary dipoles (positive or negative charge).

Explanation:

Answer:

1. B

2.C

3.The further out and the closer the the equator a place on Earth is the warmer it is due to the fact that the sun directly hits countries on the equator and takes in heat faster then the north and south pole. Countries on more of a curve are colder due to the fact they are more curved and it is harder for the heat to be taken in at a curve.

B is center point line passing through earth and it's placed right infront of sun so b would have highest temperature

#2

A and C both are poles so at a and c least sun light can reach hence lowest temperature.

#3

Answer:

The dispersed particles of lyophobic colloidal systems have the same kind of electric charge. Particles with like charge repel each other and their mutual repulsion prevents them from joining together and settling out. The accumulation of similar kind of charges on the suspended particles holds them part and thus stabilizes the system.

Explanation:

Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in the chemical bonds. These energy releases (conversions) are not 100 percent efficient. The amount of energy released is less than the total amount contained in the molecule.

Answer:

The  percent composition of glucose  in the  mixture  is 85 % (Answer E)

Explanation:

"percent  composition of glucose = (mass of glucose /  mass  of the mixture) x 100

Step 1:  calculate the mass  of glucose ( C6H12O6)

mass of glucose =  moles of glucose  x  molar mass  of glucose

molar  mass of C6H12O6  = [( 12 x6) + ( 1  x12) + ( 16 x6)= 180 g/mol

mass  is therefore= 1.3 moles x 180g/mol = 234  grams

Step 2: calculate  the percent composition

= mass of glucose /mass of mixture x 100

= 234 g/276 g  x 100  = 85 %(answer E)"

Answer: the answer is E

Explanation: plato users

The mutation is a helpful mutation since it helps bacteria to survive and reproduce.

I am assuming you are talking about their phase and in that case, they are mostly solid except for mercury and bromine.

Hope that helps!

Answer:

insoluble substances

Explanation:

Answer: the number of a chemical element in the periodic system,

Explanation:

Answer:

B,) a carboxylic acid and an amine

Explanation:

A functional group is an atom or group of atoms inside a molecule that has comparable chemical properties anytime it appears in numerous compounds. When other parts of the molecule are not similar, some functional groups react in certain manners.

Carboxylic acid is a carbonyl-containing functional group, with carbon atom bonded to an hydroxyl group on one side and on the other side is either a carbon or hydrogen atom.  

An amine group is composed of a nitrogen atom bonded to a combination of carbon and hydrogen atoms.

Answer:

a carboxylic acid and an amine

Explanation:

Answer:  " PHBALANCE " .

_____________________

Explanation:
_____________________
The pH scale is logarithmic and indicates how acid or how basic a substance is.
 ph balance ; as one word in a crossword puzzle,

with 9 letters ; P-H-B-A-L-A-N-C-E ; amounts to exactly 9 (nine) letters ;

And starts with a "P" ;

    the 3rd letter is "B" .

_____________________

Source:  Self-perception and tuition.

Hope this helps!  Please let me know if the answer is correct; or if it makes sense!

_____________________

Answer:

C = q / m x dT

Explanation:

By definition, specific heat, C = heat absorbed, q divided by mass, m and change in temperature, dT

So C = q / m x dT

Answer:

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C)

Formula:

energy (J) = mass (kg) * specific heat capacity (J/kg°C ) * change in temperature

required answer:

using the formula:

C =   [tex]\frac{102}{12.5*(55-22)}[/tex]

C = 0.2473 J/kg°C

             ↑

This is the specific heat capacity of copper

Answer:

Krypton

Explanation:

It is a noble gas, so it isn't reactive since it already has 8 valence electrons.

Answer:

c

Explanation:

plants decrease the levels of carbon dioxide in the atmosphere due to the process of photosynthesis

Answer: Neutral

Explanation: This is because, in the ph scale, greater than 7 indicates base or alkaline (basic), while less than 7 indicates that it is acidic.

Answer:

C. an ether

Explanation:

the rocky planet was exposed to harsh and forceful solar winds, which blew the Martian atmosphere away.

Another option for thickening the atmosphere of Mars, and, in turn, raising the temperature of the planet, would be to set up solar-powered, greenhouse-gas producing factories.

Answer:

A. Karl Landsteiner is the most likely for her to mention.