What happens to the concentration of a product over the course of a reaction

Answers

Answer 1

Answer:

Answer:

it becomes poisonous to the body

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A solution of HCl has mc012-1. Jpg = 0. 01 M. What is the pH of this solution? Use mc012-2. Jpg. â€""2 â€""1 1 2.

Answers

The pH of a solution depicts the alkalinity or the acidity of the components of the solution and is given as a negative log function of hydrogen ions.

The pH of the solution is:

The pH can be estimated as:

$\rm pH= - log \;H^(+)$

Ionic equation of reaction is written as:

$\rm HCl = H^(+)+ Cl^(-)$

The mole ratio between HCl and $\rm H^(+)$ = 1 : 1

Concentration of $\rm H^(+)$ = 0.01 M

$\begin{aligned}\rm pH & = - \rm log \; 0.01\n\n&= 2 \end{aligned}$

Therefore, 2 is the pH of the solution.

To learn more about pH follow the link:

brainly.com/question/10270061

Magnesium reacts with hydrochloric acid (HCl) as follows. mc025-1.jpg How many milliliters of hydrogen gas are produced by the reaction 0.020 mol of magnesium with excess of hydrochloric acid at STP? 0.448 mL 0.45 mL 448 mL 450 mL

Answers

Answer: 448 mL of hydrogen gas.

Solution:

$Mg(s)+HCl(aq)\rightarrow MgCl_2(aq)_+H_2(g)$

Now,according to reaction

1 mole of magnesium produces one mole of hydrogen gas.

Then 0.020 moles of magnesium will produce 0.020 moles of hydrogen gas.

Moles of $H_$ gas : 0.020 mol

At STP, 1 mol of gas occupies 22.4 L

So volume of 0.020 mol of $H_2$ produced at STP :

= 22.4/times 0.020 = 0.448 L = 448 mL (1L=1000mL)

Answer:

The answer is D 450

Explanation:

I just did the quiz

According to the work of the Curies, which action would increase the radioactivity of polonium?a. Dissolve the polonium in a solvent.
b. Heat the polonium until it becomes a gas.
c. Expose the polonium sample to light.
d. Increase the amount of polonium.

Answers

Answer;

Increase the amount of Polonium

Explanation;

Pierre and Marie Curies are known for their work in the study of radioactivity that led to the discoveries of new radioactive elements radium and polonium. Polonium was named after Marie's home country, Poland.
Polonium is a rare natural element, it may be found in uranium ores which is uneconomical to extract. Therefore, it is obtained from the bombarding of bismuth-209 with neutron to get bismuth-210, which then undergoes radioactive decay to form Polonium.
According to Curies increasing the amount of polonium would increase the radioactivity of Polonium element. Polonium undergoes alpha decay to emit alpha particle and is therefore used as a source of alpha particles.

Of Course D) Increase the amount of Polonium.
You want "Increase" the Radioactivity, And since Polonium is himself radioactive, you need to increase its amount.

Hope this Helps :)

An ice cube is placed on a kitchen counter. Which best describes heat flow in this situation

Answers

Answer:

D: Heat flows from the counter to the ice, causing the molecules in the counter to move more slowly.

Explanation:

Answer: D

Explanation:

edge

Please answer. Brainliest!

Answers

Answer:

The equation is balanced.

Explanation:

The number of P atoms in the reactant side is 4 and the number of P atoms in the product side is also 4.

The number of O atoms in the reactant side is 16 and the number of O atoms in the product side is also 16.

The number of H atoms in the reactant side is 12 and the number of H atoms in the product side is also 12.

These results are in accordance with the law of conservation of mass.

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Ricardo wants to determine the length of a strip of zinc metal. What is the SI unit for length? foot inch liter meter

Answers

Answer : The correct option is, meter

Explanation :

S.I : It is known as the international System of Units. It is defined as a scientific method to express the magnitude of the several basics units.

There are seven basic units in the system from which the other units are derived.

The seven base unit are, meter for length, kilogram for mass, second for time, ampere for current, kelvin for temperature, mole for amount of substance and candela for intensity.

As per question, the S.I unit of length of a strip of zinc metal is, meter.

Hence, the correct option is, meter

The Si unit for length is meters.

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