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4 years ago

The first step in using time more efficiently is

Chemistry

2 answers:

REY [17]4 years ago

4 0

The answer is studying how people use time.

Hope this helps!

mr_godi [17]4 years ago

3 0

Having a very well organized schedule and making sure u time yourself in everything u do

You might be interested in

Does anyone know the answer to this chemistry question?!?

Pepsi [2]

Answer:

Mass of HCl = 73 g

Explanation:

Given data:

Mass of hydrogen = 2 g

Mass of HCl = ?

Solution:

First of all we will write the balance chemical equation:

H₂ + Cl₂ → 2HCl

Number of moles of hydrogen = 2 g/ 2g/mol

Number of moles of hydrogen = 1 mol

Form balanced chemical equation compare the moles hydrogen with HCl.

H₂ : HCl

1 : 2

Mass of HCl:

Mass of HCl = number of moles × molar mass

Mass of HCl = 2 mol × 36.5 g/mol

Mass of HCl = 73 g

7 0

4 years ago

What effect does an increase in products have on the reaction rate of a mixture at equilibrium? A. The forward reaction rate inc

Anna007 [38]

Answer:

D. The reverse reaction rate increases.

Explanation:

The rate of reverse increases if the products are increased in a mixture at equilibrium.

At first, rate of forward and backward reactions are same for a mixture in equilibrium. 

If we add products or,the reaction moves to the opposite side I.e towards reactants side.

so,according to the Le Chateliers principle,the reaction shifts opposite to the side of increase. so,according to the Le Chateliers priciple, the rate of reverse or backward reaction will increase with the increase in the products.

4 0

3 years ago

CO_2 sublimes readily at 25°C. Which properties are usually associated with a compound that undergoes this kind of change?

antoniya [11.8K]

Explanation:

Sublimation is defined as a process in which solid state of a substance directly changes into vapor or gaseous state without undergoing liquid phase.

For example, naphthalene balls show sublimation at room temperature.

As this process does not cause any change in chemical composition of a substance. Hence, it is known as a physical process.

Similarly, when $CO_{2}$ sublimes readily at $25^{o}C$ . This shows change in physical state of carbon dioxide is taking place, i.e, from solid to gaseous phase.

Thus, we can conclude that when $CO_{2}$ sublimes readily at $25^{o}C$ then it means physical properties are usually associated with a compound that undergoes this kind of change.

4 0

3 years ago

A substance is present in the gaseous state at room temperature. Which of the following best explains the probable position of t

Gnoma [55]

Answer:

D.) It is between groups 13 to 18 because it is a non-metal.

Explanation:

Here we can see the periodic table and what each element is.

It is a non - metal because it is gaseous.