2HCl → H2 + Cl2 Is synthesis?

The speed of light is around 6.706×10^8 miles per hour. What is the speed of light in units of miles per minute?

Sindrei [870]

Answer: The speed of light in miles per minutes is $1.117\times 10^7miles/min$

Explanation:

We are given the speed of light is $6.706\times 10^8miles/hr$ and we need to convert it into miles/min. So, we use the converion factor:

1 hour = 60 minutes

Converting that quantity into miles/minutes, we get:

$(\frac{6.706miles}{1hr})(\frac{1hr}{60min})=\frac{1.117\times 10^7miles}{min}$

Hence, the speed of light in miles per minutes is $1.117\times 10^7miles/min$

7 0

3 years ago

Would you expect hydrogen chloride to be a gas, a liquid or a solid, at room temperature and pressure? Explain your answer

Vlada [557]

At room temperature hydrogen chloride is a colorless gas with a sharp or pungent odor. Under pressure or at temperatures below –85°C (-121°F), it is a clear liquid.

6 0

2 years ago

Method A: Does not transfer heat through solids and requires a medium for heat transfer Method B: Requires a material medium and

Paha777 [63]

Method A is Convection

Method B is Conduction

Explanation:

From the problem, we can infer that method A is convection and method B is conduction.

Conduction, convection and radiation are the three main methods of heat transfer.

Conduction and convection requires material medium to propagate.
Radiation occurs in the absence of a material medium.
Conduction mostly occurs in solid. Here, heat is transferred from one hot end to the cold end of the solid. The vibration of the particles in the hot end causes the transfer of kinetic energy to the cold end until thermal equilibrium is reached.
In convection, heat is primarily transferred in fluids as a result of density differences. Convection involves the motion of the materials of the medium. Hot air is light and it rises whereas cold air is dense and it sinks.

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6 0

3 years ago

When determining whether a chemical reaction has taken place you observe and look for several indicators. Which would be conside

Phoenix [80]

Answer:

B) Heat is given off.

Explanation:

When heat is given off, a chemical change must have occurred and such a reaction is termed an exothermic reaction.

A chemical change is one in which;

the process is not easily reversible
leads to the production of new kinds of matter
involves change in mass
requires a considerable amount of energy.

Most chemical reactions are accompanied by heat changes.

4 0

3 years ago

What is the difference between a subsurface and a surface event? List an example of each from the rock cycle.

GenaCL600 [577]

Answer:

The events in the rock cycle can be divided into categories:

a) Surface Events

These are the changes that occur on the surface of the earth. This includes weathering and erosion

Igneous Rocks

b) Subsurface Events

These are the changes in the cycle that occur in the inner surface of our planet. This is under the surface of Earth. This includes process like plate tectonics and mountain building.

Sedimentary

4 0

3 years ago