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mamaluj [8]
3 years ago
13

How many atoms of hydrogen are present: 2(NaHCO3)

Chemistry
1 answer:
Firlakuza [10]3 years ago
5 0

Answer:

《HOPE IT WILL HELP YOU 》

Explanation:

2 Atom of Hydrogen are present in 2 (NaHCO3)

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Wich describes a characteristic of terminal moraine
stealth61 [152]
I found this....

Supraglacial Moraine

A supraglacial moraine is material on the surface of a glacier. Lateral and medial moraines can be supraglacial moraines. Supraglacial moraines are made up of rocks and earth that have fallen on the glacier from the surrounding landscape. Dust and dirt left by wind and rain become part of supraglacial moraines. Sometimes the supraglacial moraine is so heavy, it blocks the view of the ice river underneath.

If a glacier melts, supraglacial moraine is evenly distributed across a valley.

Ground Moraine

Ground moraines often show up as rolling, strangely shaped land covered in grass or other vegetation. They don’t have the sharp ridges of other moraines. A ground moraine is made of sediment that slowly builds up directly underneath a glacier by tiny streams, or as the result of a glacier meeting hills and valleys in the natural landscape. When a glacier melts, the ground moraine underneath is exposed.

Ground moraines are the most common type of moraine and can be found on every continent.

Terminal Moraine

A terminal moraine is also sometimes called an end moraine. It forms at the very end of a glacier, telling scientists today important information about the glacier and how it moved. At a terminal moraine, all the debris that was scooped up and pushed to the front of the glacier is deposited as a large clump of rocks, soil, and sediment.

Scientists study terminal moraines to see where the glacier flowed and how quickly it moved. Different rocks and minerals are located in specific places in the glacier’s path. If a mineral that is unique to one part of a landscape is present in a terminal moraine, geologists know the glacier must have flowed through that area.
6 0
3 years ago
What are transferred in an oxidation-reduction reaction (1 point)?
madreJ [45]
electrons are transferred    in a oxidation-reduction  reaction

oxidation reduction  chemical equation involve  electrons  transfer   between  two species. In this reduction-oxidation type of chemical equation    oxidation  number of   molecule, atoms or ion  changes  by  gaining or losing  electrons,that is there  an oxidizing  agent and a  reducing agent  in the reaction.
7 0
3 years ago
Which elemental clues contain sufficient info to place the element using no other info
zaharov [31]

Atomic number

Explanation:

The atomic number is enough clue that can be used to proper place elements  without any other information. The atomic number is the number of protons in an atom. Protons are positively charged particles in the nucleus of an atom.

  • To place elements on the periodic table, the periodic law which states that "properties of elements are a periodic function of their atomic number" must be obeyed.
  • Using the atomic number, one can determine the number of electrons in a neutral atom, the charges on an ion e.t.c.
  • Atomic number can also be used to write the electronic configuration of an atom be it the shell notation, sublevel notation and the lewis dot structure.

Learn more:

Atomic numbers brainly.com/question/5425825

About atomic numbers brainly.com/question/1379579

Electronic configuration brainly.com/question/549647

#learnwithBrainly

8 0
3 years ago
g Ammonium nitrate was the oxidizing agent used that damaged the New York World Trade Center in 1993 and the Federal Building in
Cloud [144]

Answer:  51.3\times 10^3 kJ

Explanation:

The thermochemical equation for decomposition of ammonium nitrate is:

NH_4NO_3(s)\rightarrow N_2O(g)+2H_2O(g)   \Delta H=-82.1kJ

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass= 50.0 kg =50.0\times 10^3g   (1kg=1000g)

\text{Number of moles of ammonium nitrate}=\frac{50.0\times 10^3g}{80g/mol}=0.625\times 10^3moles

According to stoichiometry:

1 mole of NH_4NO_3 gives = 82.1 kJ of heat

Thus 0.625\times 10^3moles of NH_4NO_3 give =\frac{82.1}{1}\times 0.625\times 10^3=51.3\times 10^3  kJ of heat

Thus 51.3\times 10^3 kJ of heat is evolved from the decomposition of 50.0 kg of ammonium nitrate.

7 0
3 years ago
The molecular formula HOH is an example of a(n)
vodka [1.7K]

Molecule

Explanation:

The molecular formula HOH is an example of a molecule.

A molecule is the smallest particle of a substance (element or compound) capable of independent existence.

Molecules can be:

  1. Monoatomic with one atom e.g Neon, Argon
  2. Diatomic with two atoms e.g Nitrogen gas N₂
  3. Polyatomic e.g ozone O₃

The word molecule can also be used to refer to a covalent compound that has discrete or separate units.

The formula HOH or H₂O is a separate covalent that has an independent existence.

Learn more:

Molecules brainly.com/question/6071838

#learnwithBrainly

3 0
2 years ago
Read 2 more answers
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