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
Lesechka [4]
3 years ago
5

Rank the elements b, be, n, c, and o in order of increasing first ionization energy. (use the appropriate <, =, or > symbo

l to separate substances in the list.)
Chemistry
1 answer:
Dafna11 [192]3 years ago
6 0
Be, B, C, N (going from smallest to biggest)
You might be interested in
How many milliners of hydrogen gas ar produced by the reaction 0.020 moles of magnesium with excess of hydrochloride acid at sto
jeyben [28]

Answer:- 448 mL of hydrogen gas are formed.

Solution:- It asks to calculate the volume of hydrogen gas formed in milliliters at STP when 0.020 moles of magnesium reacts with excess HCl acid. The balanced equation is:

Mg+2HCl\rightarrow MgCl_2+H_2(g)

There is 1:1 mol ratio between Mg and hydrogen gas. So, the moles of hydrogen gas is also equals to the moles of Mg reacted.

moles of Hydrogen gas formed = 0.020 mol

At STP, volume of 1 mol of the gas is 22.4 L. We need to calculate the volume of 0.02 moles of hydrogen gas.

0.02mol(\frac{22.4L}{1mol})

= 0.448 L

They want answer in mL. So, let's convert L to mL using the conversion formula, 1L = 1000mL

0.448L(\frac{1000mL}{1L})

= 448 mL

So, 0.020 moles of magnesium would produce 448 mL of hydrogen gas at STP on reacting with excess of HCl acid.

5 0
3 years ago
Identify the right
Basile [38]

.answer:

so the first one is analogous

the second is homologous

and the third is analogous

explanation:

analogous. this means they share a similar function (flight) but do not have the same embryonic origin.

6 0
3 years ago
How much heat is lost when 0.440 mol of steam condenses at 100 °C?
dusya [7]

Answer:

17,890 J

Explanation:

The amount of heat released by a gaseous substance when it condenses is given by the formula

Q=n\lambda_v

where

n is the number of moles of the substance

\lambda_v is the latent heat of vaporization

The formula can be applied if the substance is at its vaporization temperature.

In this problem, we have:

n = 0.440 mol is the number of moles of steam

\lambda_v=40,660 J/mol is the latent heat of vaporization of water

And the steam is already at 100C, so we can apply the formula:

Q=(0.440)(40660)=17,890 J

8 0
3 years ago
4 examples of Substances that sublime?
AVprozaik [17]

1. Dry Ice (solid carbon dioxide)

2. Iodine

3. Arsenic

4. Naphthalene

3 0
3 years ago
How many molecules are present in 4.5<br> moles of H2O?
Gekata [30.6K]

Answer:

Mole of the H2O = 4.5

Number of molecules =4.5 multipled by avogadro's number.

6 0
3 years ago
Other questions:
  • What is the mass (in grams) of 9.91 × 1024 molecules of methanol (CH3OH)?
    13·1 answer
  • Given the name of a binary molecular compound, describe how to write its formula. Use dinitrogen trioxide as an example.
    5·2 answers
  • A molecule with the formula ch3ch(nh2)cooh probably exhibit which of the folloiwng characteristics
    11·1 answer
  • What is the correct configuration for sodium
    8·1 answer
  • What is reaction rate
    7·1 answer
  • Why does ice float?
    6·2 answers
  • HELP ASAP
    7·2 answers
  • Please help me, Thank you!
    11·1 answer
  • On the periodic table, elements become more metallic as you move from left to right across a row, and top to bottom down a colum
    14·2 answers
  • If you have two pistons in a system, which exerts the larger force?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!