All categories

4 years ago

How many nanoseconds are there in one minute?

Chemistry

1 answer:

umka21 [38]4 years ago

3 0

1 minute equals 6e+10 nanoseconds.
I hope this helped! :>

You might be interested in

Copper carbonate decomposes to make _____________ oxide and _____________ dioxide

nalin [4]

Answer:

Copper carbonate decomposes to copper oxide and carbon dioxide

Explanation:

5 0

3 years ago

Which property of steel is useful for making the car body circle the correct answer

zhenek [66]

Strong and good for you bro

5 0

3 years ago

The net ionic equation for formation of an aqueous solution of NiI2 accompanied by evolution of CO2 gas via mixing solid NiCO3 a

nlexa [21]

First you need to write out the original equation.

$NiCO_{3(s)}+ HI_{aq} ->NiI_{2(aq)}+CO_{2(g)}+H_2O_{(l)}$

It needs to be balanced, though, so after balancing it should look like this:

$NiCO_{3(s)}+ 2HI_{aq} ->NiI_{2(aq)}+CO_{2(g)}+H_2O_{(l)}$

The ionic equation would look like this. (Only aqueous solutions can be split up).

$NiCO_{3(s)}+ 2H^+_{aq}+2I^-_{aq} ->Ni^{2+}_{aq}+2I^-_{(aq)}+CO_{2(g)}+H_2O_{(l)}$

The net ionic equation only contains the products that are not aqueous. Therefore, the final net ionic equation should be:

$NiCO_{3(s)}+ 2H^+_{aq} ->Ni^{2+}_{aq}+CO_{2(g)}+H_2O_{(l)}$

So your answer is C.

6 0

3 years ago

A sample of 4.0 L of nitrogen, at 1.2 atmospheres, is transferred to a 12 L container.

Zielflug [23.3K]

Answer:

The pressure will be 0.4 atm.

Explanation:

The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.

As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them less times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:

"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

P*V= k

If you initially have the gas at a volume V1 and press P1, when the conditions change to a volume V2 and pressure P2, the following is satisfied:

P1*V1= P2*V2

In this case:

P1= 1.2 atm
V1= 4 L
P2= ?
V2= 12 L

Replacing:

1.2 atm* 4 L= P2* 12 L

Solving:

$P2=\frac{1.2 atm*4 L}{12 L}$

P2= 0.4 atm

The pressure will be 0.4 atm.

7 0

3 years ago

Which statement most completely describes the role of the cell in a single celled organism

Gwar [14]

Many life forms consist of a single cell. As well as simple bacteria, there are more complex organisms, known as protoctists. Unlike bacteria, they have complex internal structures, such as nuclei containing organized strands of genetic material called chromosomes. Most are single-celled, but some form colonies, with each cell, usually remaining self-sufficient.

Prokaryotes are unicellular organisms whose cells lack a nucleus. A nucleus is a dense are in a cell that contains nucleic acids the chemical instructions that direct the cell's activities.

Not sure if this really helps but...here you go!

4 0

3 years ago