All categories

3 years ago

Please me help asap!!!!!

Chemistry

2 answers:

marshall27 [118]3 years ago

8 0

Answer:

combination reaction is the type of reaction.

xenn [34]3 years ago

8 0

Answer:

An example is the reaction in which sodium (Na) combines with chlorine (Cl 2 ) to form sodium chloride, or table salt (NaCl). A reaction of sodium with chlorine to produce sodium chloride is an example of a combination reaction. The physical states of reactants and products are included where necessary.

¯\_(ツ)_/¯

You might be interested in

When you use a simple machine to do work, ________.

cricket20 [7]

Answer:

distance decreases and force increases

Explanation:

Simple machine means less power
Hence it will require more force.
Hence distance will decrease with respect to force and force will decrease

6 0

3 years ago

Read 2 more answers

Oxycodone (C18H21NO4), a narcotic analgesic, is a weak base with pKb = 5.47. Calculate the pH of a .00500 M oxycodone solution.

Ganezh [65]

Answer:

pH = 10.11

Explanation:

Hello there!

In this case, since it is possible to realize that this base is able to acquire one hydrogen atom from the water:

$C_{18}H_{21}NO_4+H_2O\rightleftharpoons C_{18}H_{21}NO_4H^+OH^-$

We can therefore set up the corresponding equilibrium expression:

$Kb=\frac{[C_{18}H_{21}NO_4H^+][OH^-]}{[C_{18}H_{21}NO_4]}$

Which can be written in terms of the reaction extent, $x$ :

$Kb=\frac{x^2}{0.00500M-x}=3.39x10^{-6}$

Thus, by solving for $x$ we obtain:

$x_1=-0.000132M\\\\x_2=0.0001285M$

However, since negative solutions are now allowed, we infer the correct $x$ is 0.0001285 M; thus, the pOH can be computed:

$pOH=-log(x)=-log(0.0001285)=3.89$

And finally the pH:

$pH=14-pOH=14-3.89\\\\pH=10.11$

Best regards!

5 0

3 years ago

2C4H10 + 13O2 Right arrow. 8CO2 + 10H2O<br><br> What is the mole ratio of butane to carbon dioxide?

Zielflug [23.3K]

2C4H10 + 13O2 Right arrow. 8CO2 + 10H2O

What is the mole ratio of butane to carbon dioxide?

ANSWER:

Butane is an organic compound with the formula C4H10 and carbon dioxide is compound (gas) with the formula CO2. So, the balanced coefficient of butane is 2, and that of carbon dioxide is 8. According to thid, the mole ratio of butane to carbon dioxide is 2:8 or 1:4.

7 0

3 years ago

What would form a solution

cluponka [151]

Search Results
Featured snippet from the web
A solution is made when one substance called the solute "dissolves" into another substance called the solvent. Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules.

3 0

3 years ago

In the explosion of a hydrogen-filled balloon, 0.80 g of hydrogen reacted with 6.4 g of oxygen. How many grams of water vapor ar

mylen [45]

0.4 moles H2O x (18.0 g / mole) = 7.2 g H2O

Explanation:

write the values given in the question

In an explosion of hydrogen balloon, 0.80g of hydrogen is reacted with 6.4g of oxygen.

Write the balanced equation

2 H2 + O2 ---> 2 H2O

0.80 g H2 x (1 mole / 2g) = 0.4 moles H2

6.4 g O2 x (1 mole / 32g) = 0.2 moles O2

from balanced equation, 2 moles H2 react with 1 mole O2

therefore

0.4 moles H2 x (1 mole O2 / 2 moles H2) = 0.2 moles O2

since we need 0.2 moles O2 to react with all the H2 and we have exactly that amount, the amounts are said to be

"stoichiometric" and either reactant can be considered limiting

from the balanced equation, 2 moles H2 --> 2 moles H2O.. therefore

0.4 moles H2 x (2 moles H2O / 2 moles H2) = 0.4 moles H2O

Then

0.4 moles H2O x (18.0 g / mole) = 7.2 g H2O

8 0

3 years ago