1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rina8888 [55]
4 years ago
11

Why is the metric (SI) system called a decimal system of measurement

Chemistry
1 answer:
defon4 years ago
6 0

The metric system is the oldest name for the international system of units. SI unit or the international systems of units are based on seven basic units; the meter, kilogram, second, ampere, Kelvin, candela and mole. All of these basic units are divided into multiples by a power of ten. For example in meters, 1 meter is equal to: 1000 millimeter, 100 centimeter, 10 decimeter, 0.1 decameter, 0.01 hectometer, 0.001 kilometer and so on and so forth.

You might be interested in
4. What are the products (things made) in photosynthesis?
SVETLANKA909090 [29]
Oxygen and glucose that’s all I know
8 0
2 years ago
Read 2 more answers
A solution is made by dissolving
AVprozaik [17]

Answer:

0.342 m

Explanation:

From the question given above, the following data were obtained:

Mass of NaBr = 14.57 g

Mass of water = 415 g

Molar mass of NaBr = 102.89 g/mol

Molality of NaBr =?

Next, we shall determine the number of mole in 14.57 g of NaBr. This can be obtained as follow:

Mass of NaBr = 14.57 g

Molar mass of NaBr = 102.89 g/mol

Mole of NaBr =?

Mole = mass / molar mass

Mole of NaBr = 14.57 / 102.89

Mole of NaBr = 0.142 mole

Next, we shall convert 415 g of water to kg. This can be obtained as follow:

1000 g = 1 Kg

Therefore,

415 g = 415 g × 1 Kg / 1000 g

415 g = 0.415 Kg

Thus, 415 g is equivalent to 0.415 Kg.

Finally, we shall determine Molality of the solution as follow:

Mole of NaBr = 0.142 mole

Mass of water = 0.415 Kg

Molality of NaBr =?

Molality = mole / mass of water in Kg

Molality of NaBr = 0.142 / 0.415

Molality of NaBr = 0.342 m

Therefore, the molality of NaBr solution is 0.342 m.

5 0
3 years ago
Dylan puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
guajiro [1.7K]
If the magnetic toy trains are opposite charges, they will attract each other and collide however if the trains are of the same charge, they will oppose each other. This is because electrostatic force (the opposite forces so + and -) attract opposite charges

Hope that helps :)
8 0
3 years ago
The atomic number of phosphorus is 15. how many electrons does it have in its 3rd shell
Snowcat [4.5K]
It would be 8 would it not
7 0
3 years ago
Deduce the charge on the dichromate ion in Ag2Cr2O7. <br>The charge on a silver ion is +1 .​
Ivenika [448]

Answer:

2-

Explanation:

The dichromate ion is the part of the compound that looks like: Cr2O7.

Our current compound is Ag2CrO7. The “2” on Ag indicates that there are two atoms of Ag in this compound, while the absence of a number on Cr2O7 indicates that there is only one atom of Cr2O7.

In order to maintain balance within the compound, the product of one of the ion’s charge with its atom amount must be equivalent to the product of the other ion’s charge with its atom amount. This is because the charges will ultimately add up to 0, which is the neutral substance we want.

Here, we know the “atom amount” of Ag is 2 and that its charge is 1+. So that’s 2 * 1 = 2. We also know that the “atom amount” of Cr2O7 is 1 and that its charge is x, for example. Then: x * 1 + 2 = 0. That means x = -2.

Thus, the charge on the dichromate ion is 2-.

6 0
3 years ago
Other questions:
  • True or false Liquid particles move faster than gas particles
    15·2 answers
  • The softest and hardest minerals are:
    14·2 answers
  • How many atoms are in 1.14 mol of sulfur trioxide
    8·1 answer
  • Which term describes something that changes during an experiment?
    13·2 answers
  • I really need the answer
    6·1 answer
  • The value of AH° for the reaction below is +128.1 kJ CH3OH (I)-CO (g) + 2H2 (g) How much heat is consumed when 87.1 g of hydroge
    10·1 answer
  • The effect of chlorofluorocarbons (such as CCl2F2(g)) on the depletion of the ozone layer is well known. The use of substitutes,
    13·1 answer
  • Atoms are indivisible spheres.
    15·2 answers
  • How do Hydrogen-1, Hydrogen-2, and Hydrogen-3 differ from each other?
    9·1 answer
  • What happens when baking soda and vinegar are mixed together.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!