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mamaluj [8]
3 years ago
7

The kilogram is the SI unit for mass true or false

Chemistry
1 answer:
Anestetic [448]3 years ago
4 0

Answer:

True

Explanation:

You might be interested in
For a price ceiling to be a binding constraint on the market, the government must set it a above the equilibrium price. b below
beks73 [17]

Answer:

B. Below the equilibrium price

Explanation:Price ceiling is the legal price,impose by The Government or Regulatory agencies above which a product should not be sold. It is also a price control mechanism through which the Government and other Regulatory agencies check the excesses of producers and the middle men(Whole sellers and retailers). The price ceiling has to be fixed below the equilibrium price for it to be binding, because businesses are interested mainly for profit maximization.

4 0
3 years ago
If 0.089 grams of KI is dissolved in 500g of H2O, what is the concentration of the resulting solution in parts per million?
frez [133]

Answer:

The concentration of the resulting solution in parts per million is 177.97

Explanation:

Parts per million (ppm), is a unit of measure for concentration that refers to the number of units of the substance per million units of the set.

The concentration in parts per million expressed in mass / mass is calculated by dividing the mass of the solute (ms) by the mass of the solution (md, sum of the mass of the solute and the mass of the solvent), both expressed in the same unit and multiplied by 10⁶ (1 million).

ppm=\frac{ms}{md} *10^{6}

So, being:

  • ms: 0.089 grams of KI
  • md: 0.089 grams of KI + 500 grams of H₂O= 500.089 grams

Replacing:

ppm=\frac{0.089 grams}{500.089 grams}*10^{6}

ppm= 177.97

<u><em>The concentration of the resulting solution in parts per million is 177.97</em></u>

6 0
3 years ago
What is a natural resource that is plentiful, but strong enough to be used as currency?
gayaneshka [121]

Answer:

The two characteristics — “plentiful” and “currency” — are not really related.

Money is a symbolic tool to expedite trade. In earliest days, people might carry bushels of wheat to exchange for jars of oil. But that is cumbersome, and the search costs are too high. It’s hard to find another party who both wants what you have, AND who also has what you want!.

Instead, we all agree on trading with “money.” The farmer gives the store milk and gets money. Later you give the store money and get milk.

SO… The most important characteristic of currency is that it is hard to fake. That is to prevent cheating. Gold and silver were scarce so made good coins. Then printed currency was made hard to counterfeit. Trade with money is based on confidence in the money.

In an entirely different direction are the natural resources we take for granted - like air and water.

If you explain your question further in the comments, glad to respond.

Explanation:

Nature.

Real value equals nature which sustains all life.

This is indisputable & real value, nature & life are inseparable.

Nature is a singular compound billions years old recreative self-sustainable real value system of living organisms. Humans are a mere millions years old failing species of mammal.

Nature must and will inevitably be repaired, restored and expanded as the only source of REAL life sustaining value on the planet.

Value inequality concerns natures real life sustaining value and over billions of years through evolution nature has acheived some degree of balance. This has been disrupted by the human species using the failed fake value system of economics to create fake income inequality

Real value is not *emotional* or *symbolic* (wealth) and for mammals like we humans consists of life sustaining matter created solely by nature.

Fake “value“ or wealth is created by failed economics which creates fake income inequality that is used to manipulate the masses access to real value. Fake value is “shadow wealth” used by capitalists to control and manipulate access to natures real value.

Wealth is a fake value lien placed by the wealthy (capitalists) on natures real life sustaining value and is facilitated by economics and capitalism in particular.

5 0
3 years ago
1.5L of water is boiled to steam at a temperature of 100°C and creates 3.5atm of pressure on the container. How many moles of st
Anna71 [15]

Answer: 1.7 moles

Explanation:

Given that:

Volume of water V = 1.5L

(since 1 liter = 1dm3

1.5L = 1.5dm3)

Temperature T = 100°C

Convert Celsius to Kelvin

(100°C + 273 = 373K)

Pressure P = 3.5 atm

Number of moles of steam N = ?

Note that Molar gas constant R is a constant with a value of 0.0082 ATM dm3 K-1 mol-1

Then, apply ideal gas equation

pV = nRT

3.5atm x 1.5dm3 = n x (0.0082 ATM dm3 K-1 mol-1 x 373K)

5.25 = n x 3.06

n = 5.25/3.06

n = 1.7 moles

Thus, 1.7 moles of steam is present

3 0
3 years ago
Help me guys ☹️please
Elza [17]

Answer:

Coriolis Effect

Explanation:

The Coriolis Effect is caused by Earths rotation. We can not only see this affecting how winds move, but also where storms form and the movement of  oceans currents.

5 0
3 years ago
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