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viva [34]
3 years ago
6

Calculate the residence time of sodium. Fill in the blanks.

Chemistry
1 answer:
o-na [289]3 years ago
4 0
Answer: 8.0 * 10^ 7 years

Explanation:

You just need to use the given equation with the two data also given.

1) Data:

m = 2.8 * 10^ 13 ton
f = 3.5 * 10^5 ton / year

2) Formula:

T = m/f

3) Solution

Subititute the values for the variables:

T = [2.8 * 10^ 13 tons ] / [3.5 * 10^ 5 ton / year] = 0.8 * 10^ 8 = 8.0 * 10^ 7 years.

Answer: 8.0 * 10^7 years.
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Write a balanced chemical equation for dissolving calcium chloride in water.
jarptica [38.1K]

CaCl2(s) -> Ca^2+(aq)+Cl(aq)

3 0
4 years ago
Ow does the weight of the water displaced compare to the buoyant force?
Ghella [55]

Answer: They are the same.

Expatiation:

Buoyant force: An upward thrust exerted by any fluid on an object placed in it.

According to Archimedes' principle which states that 'upward thrust exerted by the fluid on an object immersed in a fluid whether partially or fully is equal to the weight of the fluid displaced by the immersed body'.This force  acts in the upward direction at the center of mass of the displaced fluid.

Hence, it is correct to say that weight of the water displaced compare to the buoyant force are the same.

6 0
3 years ago
Give the name and formula for the acid derived from each of the following anions:<br> (c) bromite
Travka [436]

The name of the acid is Bromous acid and the Formula of the acid is HBrO₂.

<h3>What is Acids ? </h3>

Acids is defined as substances that is able to donate a proton or hydrogen ion to other substance. Acids acts as proton donor.

<h3>What is Oxoacids ? </h3>

An oxoacids is an acids that contains oxygen. It is also called oxyacids or ternary acids. Oxoacids are the acids of oxoanions.

If anion name contains the suffix ‘ate’ then replace ‘ate’ with ‘ic’.

If anion name contains the suffix ‘ite’ then replace ‘ite’ with ‘ous’.

Given anion is bromite. Formula of bromite is BrO₂⁻. It is an oxoanion.

Now write the name of acid. Here anion name contains the suffix ite so replace the ‘ite’ of bromite with ‘ous’.

The name of the acid is Bromous acid.   

Formula of the acid is HBrO₂.

Thus from the above conclusion we can say that The name of the acid is Bromous acid and the Formula of the acid is HBrO₂.

Learn more about Oxoacids here: brainly.com/question/21795128

#SPJ4

4 0
2 years ago
235
lisov135 [29]

Answer:

Average atomic mass of uranium = 237.97 amu

Explanation:

Given data:

Abundance of U-234 = 0.01%

Abundance of U-235 = 0.71%

Abundance of U-238 = 99.28%

Average atomic mass of uranium = ?

Solution:

Average atomic mass  = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) + (abundance of 3rd isotope × its atomic mass)  / 100

Average atomic mass  = (234×0.01)+(235×0.71)+(238+99.28) /100

Average atomic mass =  2.34 + 166.85+23628.64 / 100

Average atomic mass = 23797.83 / 100

Average atomic mass = 237.97 amu.

3 0
3 years ago
According to the graph how many mice will be born in week 5 if the trend continue​
Bond [772]
There’s no graph soooooooio
8 0
3 years ago
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