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3 years ago

The weighted average atomic mass of an element depends upon the

1 answer:

4 0

The answer is B.

To find weighted average atomic mass you have to multiply the percent abundance and the mass of each isotope, then add all values together.

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What does the following energy diagram represent?A. Activation energyB. Exothermic reactionC. Specific heat capacityD. Endotherm

inn [45]

Explanation:

We are given the following diagram.

In this diagram we can see how the energy in the reaction changes over time. The energy of the products is greater than the energy of the reactants. That means that the products have won some energy. That represents an endothermic reaction where the reactants absorb energy from the surrounding to form the products.

Answer: D. Endothermic reaction.

8 0

2 years ago

Need help balancing equations

Reptile [31]

The answers is 2 1 4 3

8 0

3 years ago

Describe in detail how you would determine the density of a potato that is too large to fit into a graduated cylinder. (Hint: Th

Mnenie [13.5K]

Answer:

The density of a potato is $\dfrac{M}{V'}$

Explanation:

Given that,

A potato that is too large to fit into a graduated cylinder.

Let us consider the mass of potato is M and volume of entire potato is V'.

The volume of water is V.

We know that,

Density :

The density is equal to the mass divided by volume.

In mathematically,

$\rho=\dfrac{m}{V}$

Where, m = mass

V = volume

We need to calculate the volume of potato

Using formula for volume

$V'=V''-V$

Where, V' = volume of potato

V''=Volume of combine water and potato

V = volume of water

We need to determine the density of a potato

Using formula of density

$Density\ of\ potato=\dfrac{Mass\ of\ potato}{volume\ of\ entire\ potato}$

Put the value into the formula

$\rho=\dfrac{M}{V'}$

Hence, The density of a potato is $\dfrac{M}{V'}$

7 0

3 years ago

numbers represented by the following prefi xes: (a) mega-, (b) kilo-, (c) deci-, (d) centi-, (e) milli-, (f) micro-, (g) nano-,

Dahasolnce [82]

Explanation:

mega=10raised to the power 6

kilo=10 raised to the power 3

centi = 10 raised to the power negative 2

Milli = 10 raised to the power negative 3

nano = 10 raised to the power negative 9

pico= 10 raised to the power negative 12

micro = 10 raised to the power negative 6

5 0

3 years ago

What is a real-life example of equilibrium and what would happen if there was a shift in the system of that example?

BabaBlast [244]

Answer:

Refrigerator

Explanation:

Think about it. Equilibrium is between 2 "places", and if you didn't open the fridge, there would be a buildup of cold air.

Because of that buildup, it would keep getting colder until it isn't possible to get cold anymore. That is equilibrium.

However, if you were to open the door for a very, very long time, you would lower the temp. inside the fridge, therefore causing for the room you are in to be slightly colder, and the fridge to decrease in cold. The fridge will still be slightly cold, but it won't be lukewarm if you leave it for 2 hours. (Unless it's broken)

That is equilibrium :)

3 0

2 years ago