All categories

3 years ago

In the Inca civilization what was the quipo used for?

1 answer:

5 0

It involved knots in strings called quipu. The quipu was not a calculator, rather it was a storage device. Remember that the Incas had no written records and so the quipu played a major role in the administration of the Inca empire since it allowed numerical information to be kept.

You might be interested in

What is oxidation state?

solniwko [45]

Answer:

a number assigned to an element in chemical combination which represents the number of electrons lost (or gained, if the number is negative), by an atom of that element in the compound

Explanation:

sodium, magnesium, iron is zero.

4 0

3 years ago

Read 2 more answers

The mass defect for the formation of lithium-6 is 0.0343 g/mol. The binding energy for lithium-6 nuclei is ________ kJ/mol. Ente

Sholpan [36]

<u>Answer:</u> The binding energy for lithium-6 nuclei is 3.09 E+11

<u>Explanation:</u>

Binding energy is defined as the energy which holds the nucleus together. It is basically the product of mass defect and the square of the speed of light.

This energy is calculated by using Einstein's equation, which is:

$E=\Delta mc^2$

where,

E = Binding energy of the atom

$Delta m$ = Mass defect = 0.0343g/mol = $0.0343\times 10^{-3}kg/mol$ (Conversion factor: $1kg=10^3g$ )

c = speed of light = $3\times 10^8m/s$

Putting values in above equation, we get:

$E=0.0343\times 10^{-3}kg/mol\times (3\times 10^8m/s)^2$

$E=3.09\times 10^{14}J/mol=3.09\times 10^{11}kJ/mol$ (Conversion factor: $1kJ=10^3J$ )

Hence, the binding energy for lithium-6 nuclei is 3.09 E+11

7 0

3 years ago

Think about the processes that occur within your body everyday as well as those that take place within plants and animals all of

SpyIntel [72]

Our bodies and plants bodies produce glucose which helps give us energy. Glucose comes from food and fats from the things we eat eve

8 0

3 years ago

Read 2 more answers

How many liters would you need to make a 2 M solution if you have 3 mol of Sodium Hydroxide

Kipish [7]

Answer:

A 1 molar (M) solution will contain 1.0 GMW of a substance dissolved in water to make 1 liter of final solution. Hence, a 1M solution of NaCl contains 58.44 g.

Explanation:

6 0

3 years ago

_______ are hollow spaces in the earths crust?.

netineya [11]

I think that answer would be caves

6 0

3 years ago

Read 2 more answers