Denaye drives 25 km to work every day along the route tgere is a traffic light every 5,000 meters. How many traffic lights does denaye pass on her way to work

Answer:

H

2

O

2

(aq)+ClO

4

−

(aq)⟶O

2

(g)+ClO

2

−

(aq)

All atoms except H and O are balanced.

The oxidation number of Cl changes from 7 to 3. The change in the oxidation number is 4.

The oxidation number of O changes from -1 to 0. The change in oxidation number per O atom is 1.

Total change in the oxidation number for 2 oxygen atoms is 2.

To balance the increase in oxidation number with decrease in the oxidation number, multiply H

2

O

2

and O

2

with coefficients 2.

2H

2

O

2

(aq)+ClO

4

−

(aq)⟶2O

2

(g)+ClO

2

−

(aq)

To balance O atoms, add 2 water molecules on RHS.

2H

2

O

2

(aq)+ClO

4

−

(aq)⟶2O

2

(g)+ClO

2

−

(aq)+2H

2

O(l)

The oxygen atoms are already balanced.

This is the balanced chemical equation

Answer:

0.52 mole

Explanation:

How many moles of Al2O3 will be formed when 27 grams of Al reacts with O2? Hence 0.78 mole of oygen react with Aluminium to give 0.52 mole of Al2O3.

Potassium atom would not bond with a calcium atom because two metals because they are not capable of accepting electrons.

This is referred to as a substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions known as cations.

The formation of chemical bonds in a reaction requires a change in electron distribution which can only be possible when one of the elements participating in the reaction can accept electrons and is therefore the reason why two metals such as potassium and calcium atom can't form a reaction but two non metals can.

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The mass of sodium chloride (NaCl) produced from the reaction when 471 KJ of heat is released is 67.04 g

2Na + Cl₂ —> 2NaCl   ΔH = + 822 kJ

Molar mass of NaCl = 23 + 35.5 = 58.5g/mol

Mass of NaCl from the balanced equation = 2 × 58.5 = 117 g

SUMMARY

From the balanced equation above,

When 822 KJ of heat is released, 117 g of NaCl were produced.

From the balanced equation above,

When 822 KJ of heat is released, 117 g of NaCl were produced.

Therefore,

If 471 KJ of heat is released, then = (471 × 117) / 822 = 67.04 g of NaCl will be produced

Thus, 67.04 g of NaCl were obtained from the reaction

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it has to be b

Explanation:

bc the 4th power to 5 is 2

Answer:

6116g

Explanation:

2SO2(g) + O2(g) + 2H2O(ℓ) −→ 2H2SO4(ℓ)

We want to find the mass in grams of SO2 that is needed to react with 1527 g of O2. First we must convert the grams of O2 to moles of O2 then to moles of SO2 and then to grams of SO2

So first lets find the molar mass of O2

The mass of oxygen according to a periodic table is 15.999

Using this the mass of O2 would be 15.999(2) = 31.988g

Next we need to identify the mole ratio of O2 to SO2

Looking at the equation for 1 mole of O2 there are two moles of SO2

Next we need to find the molar mass of SO2

Again the mass of oxygen is 15.999g and the mass of Sulfur is 32.066

So the mass of SO2 would be 15.999(2) + 32.066 = 64.064g

Now that we have found all the needed conversions :

We can now use dimensional analysis to calculate the answer.

Kindly check the attached image to see the table. ( sorry if its a bit blurry )
Explanation : The conversions are used to cancel out the units to get to the final unit which is gSO2.

Once the units are cancelled out except for the gSO2 we mutliply and divide based off of what the table says to do.
Here first we divide 1527 by 31.988. We than multiply by 2. Finally we multiply by 64.064 to get the final answer which is 6116gSO2

Answer:

3-methylhexane

Explanation:

For naming alkane molecules follow the following steps

1) Find the longest continuous carbon chain and count the number of carbons

In this structure, it is from the bottom, then up, then to the right. Making a right angle. There is 6 carbons in this chain which means it's a hexane

2) Number the longest carbon chain so the constituents (parts not part of the carbon chain) are connected to the carbon with smallest number possible.

This gives the extra CH3 group connected to carbon 3

3) Put it all together

Methyl connected to carbon 3 + hexane

3-methylhexane

[tex] \large \sf \: answer[/tex]

You can identify the aldehyde from acidic potassium permanganate. Purple colour of acidic potassium permanganate is changed to colourless because aldehyde is oxidized by acidic potassium permanganate.

Answer:

This is what it looks like! Mark brainliest if u think im right <3

Explanation:

Weathering and erosion on the Earth's surface break down volcanic rock becoming pebbles, sand, as well as mud, resulting in sedimentary rock.

Sedimentary rock, rock generated at or near the Earth's surface as a result of sediment deposition and lithification or precipitation into solution at typical surface temperatures.

Sedimentary rocks are among the most frequent on the Earth's surface, although they make up just a minuscule portion of the crust, which would be dominated by metamorphic and igneous rocks.

Weathering and erosion on the Earth's surface break down volcanic rock becoming pebbles, sand, as well as mud, resulting in sediment that collects in basins just on Earth's surface. The image for the formation of sedimentary rock is given below.

Therefore, weathering and erosion on the Earth's surface break down resulting in sedimentary rock.

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Why? Because high-pressure systems don't allow vapor to get high enough to "become clouds," therefore it will not rain. :)

~pinetree

The total bond energy of 2OH bond is 928 kJ/mol

Bond energy is the energy needed to break or form bonds. They are measured in kilojoule per mole (kJ/mol).

Since we are given that the bond energy of O-H is 464 kJ/mol and we require the total bond energy of 2OH. In 2OH, the are two O-H bonds.

So, the bond energy of the two O-H bonds will be twice that of the single O-H bond.

So bond energy of 2OH = 2 × bond energy of O-H = 2 ×  464 kJ/mol

= 928 kJ/mol

So, the total bond energy of 2OH bond is 928 kJ/mol

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Answer: A

Explanation:

Answer:

1. 2

2. 2

3. 3

Explanation:

That's my answer

Answer:

illustrates ways things are similar and different

Explanation:

Answer:

illustrates ways things are similar and different

Based on the concentration of the solutions, the increase in volume is as follows:

Osmosis is the movement of water molecules from a region of low solute concentration to a region of high solute concentration through a semipermeable membrane.

The movement of water molecules in the solution pairs is as follows:

Therefore, the increase in volume depends on the concentration ofvthe solutions.

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Explanation:

[tex] \frac{p1v1}{t1} = \frac{p2v2}{t2} [/tex]

1 × 30/273 = 2 × V2/300

V2=300×30/2×273

V2= 16.5 ml

Answer:

Some of the energy from the electrons is used to pump hydrogen ions across the membrane, creating an electrochemical gradient that drives the synthesis of many more molecules of ATP. In all three stages of cellular respiration combined, as many as 38 molecules of ATP are produced from just one molecule of glucose.

Explanation:

Answer:The colour and distribution of the organism's biochromes

Explanation:

The colour and distribution of the organism's biochromes (pigments), particularly the relative location of differently coloured areas; the shape, posture, position, and movement of the organism; and the quality and quantity of light striking the organism

Answer:

the first would be an polar compound the second would be a ionic compound and the third would be nonpolar compound

Answer:

43.40%

Explanation:

Answer:

(D) petroleum

Explanation:

because as we know that petroleum is obtain from the sea bed,within the remains of animals and plants which lived millions of year ago......

The energy of -91.8 kJ in the reaction equation shows that energy is released so this is an exothermic reaction.

A thermochemical equation is one which just does not only show the reactants and products but also shows the energy absorbed or emitted in the reaction.

We can see from the thermochemical equation; N2(g) + 3H2(g) → 2NH3(g); ΔH = -91.8 kJ that the negative enthalpy implies that  energy is released so this is an exothermic reaction.

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Answer:

H

Explanation:

The molar mass of M is 40.2 g/mol and the name of the element is Calcium.

35.3g of element M reacted with nitrogen to produce 43.5g of compound M3N2.

3M + N₂→ M₃N₂

Therefore,

let the molar mass of element = x

35.3 g of M = 43.5 g of  M₃N₂

3x g of M = 3x + 28

cross multiply

35.3(3x + 28) = 43.5(3x)

105.9x + 988.4 = 130.5x

988.4 = 130.5x - 105.9x

988.4  = 24.6x

x = 988.4 / 24.6

x = 40.1788617886

x = 40.2

Therefore, the molar mass of M is 40.2 g/mol and the name of the element is Calcium.

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Balanced chemical reaction

[tex]\\ \rm{:}\dashrightarrow 3M+N_2\longrightarrow M_3N_2[/tex]

Answer:

The partial pressure of an individual gas is equal to the total pressure multiplied by the mole fraction of that gas.

Answer:

Non Renewable would be correct option

Explanation:

Non Renewable resources are resources that cannot be replenished within a lifetime.

These resources cannot be replaced after once used.

Examples of Non Renewable resources are Coal , Petroleum & gas etc .

Answer:

The wind will keep pushing against it and it will go around and above it. You can test this by holding a pot and a hairdryer. The air will go around the pot so the wind will do the same. The wind will go aound the object blocking its path by going to the side or up.

Explanation:

The wind will keep pushing against it and it will go around and above it. You can test this by holding a pot and a hairdryer. The air will go around the pot so the wind will do the same. The wind will go aound the object blocking its path by going to the side or up.

THEY ARE CALLED PREVAILING WINDS!!!!

Have an amazing day!!!

PLEASE RATE AND MARK BRAINLIEST!!!!

Answer: 1. D. It warms the air masses.

2. D. The air moves from high to low pressure systems.

3. B. It is pushed upwards and out.

4. B. uneven rainfall

Hope this helped! Brainliest would be appreciated. :)