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
klemol [59]
3 years ago
8

20,000 $ give a way but answer this first

Chemistry
2 answers:
horsena [70]3 years ago
5 0

Answer:juhygjdkeExplanation:

Mendelevium is named for Dmitri Mendeleev who produced one of the first periodic tables.

Abelson first found neptunium in 1940 after uranium had been bombarded by neutrons from the cyclotron at Berkeley, California. ... The element was named after the planet Neptune, which is the first planet beyond Uranus.

valentina_108 [34]3 years ago
4 0

Answer in explanation

Explanation:

neptunium was named after the discovery of the planet neptune in september 23 1846

mendelevium was named as dimitri mendeleev

You might be interested in
Convert 23.92inHg to torr.
White raven [17]
<h3><u>Answer;</u> </h3>

= 607.568 Torr

<h3><u>Explanation; </u></h3>

1 in of mercury is equivalent to 25.4 Torr  

Therefore;

23.92 InHg will be equal to;

23.92 × 25.4  

<u>= 607.568 Torr</u>

7 0
3 years ago
What is this equation balanced?
Brums [2.3K]
This equation is impossible. NaSO4 is non-existent. Did you mean Na2SO4?
4 0
3 years ago
Most of the volume of a gas is
Vesna [10]

Answer:

One mole of any gas has a volume of 24 dm3 or 24,000 cm3 at rtp (room temperature and pressure).

Explanation:

3 0
3 years ago
You are given a 1.55 g mixture of calcium nitrate and calcium chloride. You dissolve this mixture in 20 mL of water and add an e
irina [24]

Answer:

13.4 (w/w)% of CaCl₂ in the mixture

Explanation:

All the Cl⁻ that comes from CaCl₂ (Calcium chloride) will be precipitate in presence of AgNO₃ as AgCl.

To solve this problem we must find the moles of AgCl = Moles of Cl⁻. As 2 moles of Cl⁻ are in 1 mole of CaCl₂ we can find the moles of CaCl₂ and its mass in order to find mass percent of calcium chloride in the original mixture.

<em>Moles AgCl - Molar mass: 143.32g/mol -:</em>

0.535g * (1mol / 143.32g) = 3.733x10⁻³ moles AgCl = Moles Cl⁻

<em>Moles CaCl₂:</em>

3.733x10⁻³ moles Cl⁻ * (1mol CaCl₂ / 2mol Cl⁻) = 1.866x10⁻³ moles CaCl₂

<em>Mass CaCl₂ -Molar mass: 110.98g/mol-:</em>

1.866x10⁻³ moles CaCl₂ * (110.98g/mol) = 0.207g of CaCl₂ in the mixture

That means mass percent of CaCl₂ is:

0.207g CaCl₂ / 1.55g * 100 =

<h3>13.4 (w/w)% of CaCl₂ in the mixture</h3>
8 0
3 years ago
what is the total ionic and net ionic equation for for the reaction between between mercury (II) nitrate and iron (III) chloride
MArishka [77]

Answer:

Hg+2 + 2Cl- -> HgCl2






HOPE THIS HELPS HAVE A GREAT DAY/NIGHT!!~

Explanation:

7 0
2 years ago
Other questions:
  • Explain, in terms of ions, why the aqueous solution in the cell conducts an electric current.
    12·1 answer
  • The pressure is recorded as 738 mmHg.Convert this measurement to atmosphere (atm)
    7·1 answer
  • Classify the following materials as solid, liquid, or gas at room temperature: milk, helium, granite, oxygen, steel, and gasolin
    15·1 answer
  • How many atoms altogether make up one molecule of glucose ​
    5·1 answer
  • Conduction can occur in solids, liquids, or gases, but it is more effective in
    14·1 answer
  • How many liters of gaseous hydrogen bromide at 58°C and 0.891 atm will a chemist need if she wishes to prepare 3.50 L of 1.20 M
    6·2 answers
  • Find the equation of the line passing through the points (2, 1) and (5, 10).​
    8·1 answer
  • Using your periodic table, determine the electron configuration of Barium ion, Ba+2
    12·1 answer
  • I need help asap! !!
    6·1 answer
  • State the periodic law and explain how it relates to the periodic table.​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!