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2 years ago

Which of the following is the displacement from point P to point W?

Chemistry

1 answer:

IRINA_888 [86]2 years ago

4 0

<span>C represents the displacement ONLY if it is the VECTOR arrow from P to W.
Usually if the arrow on the diagram has JUST a letter listing, that letter stands for the SIZE or LENGTH of the VECTOR arrow. In order to have the letter represent the VECTOR, itself, it must have a symbol of a "half arrow" placed above it.</span>

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What else is produced during the combustion of butane, C4H10?

denpristay [2]

Another product: CO₂

<h3>Further explanation</h3>

Given

Reaction

2C₄H₁₀ + 13O₂⇒ 8__+ 10H₂O

Required

product compound

Solution

In the combustion of hydrocarbons there can be 2 kinds of products

If there is excess Oxygen, you will get Carbon dioxide(CO₂) and water in the product

If Oxygen is low, you'll get Carbon monoxide(CO) and water

Or in other ways, we can use the principle of the law of conservation of mass which is also related to the number of atoms in the reactants and in the products

if we look at the reaction above, there are C atoms on the left (reactants), so that in the product there will also be C atoms with the same number of C atoms on the left

2C₄H₁₀ + 13O₂⇒ 8CO₂+ 10H₂O

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2 years ago

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Why are salt solutions not used to treat the roads during snow events when the temperature is below -15 degrees Celsius? *

Marta_Voda [28]

Answer:

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Explanation:

3 0

2 years ago

C. 840 D. 2053...........

faust18 [17]

They have hydrogens numbers wrong its 1.008 not 1.01

4 0

2 years ago

How many grams of sodium bicarbonate are needed to completely react with a 0.892 m phosphoric acid solution that contains to 45.

SVETLANKA909090 [29]

Answer:

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7 0

3 years ago

What is the concentration created when 380.0g of Pb(NO3)2 is added to 330.0 mL of solution?

Juliette [100K]

The concentration of lead nitrate is 3.48 M.

<u>Explanation:</u>

The molarity can be found by dividing moles of sucrose by its volume in litres. We can find the number of moles of sucrose by dividing the given mass by its molar mass. Now we can find the moles as,

Here mass of Pb(NO₃)₂ is 380 g

Molar mass of Pb(NO₃)₂ is 331.2 g/mol

Number of moles = $$\frac{given mass}{molar mass}$

= $$ \frac{380 g }{331.2 g/mol}$

= 1.15 moles

Volume in Litres = 330 ml = 0.33 L

Molarity = $$\frac{Moles}{Volume (L)}$

= 3.48 mol/L or 3.48 M

So the concentration of lead nitrate is 3.48 M.

7 0

2 years ago