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
Fiesta28 [93]
2 years ago
10

First to help me with these 4 gets brainless HURRYTTT UPPPPP

Chemistry
2 answers:
Bezzdna [24]2 years ago
6 0

Answer: It's A

Explanation:

kompoz [17]2 years ago
3 0

Answer:

A

Explanation:

You might be interested in
By the way...... what do those symbols for the elements have in common (for number 7-11): Pb, Au, Cu, Hg, Na ? *
Keith_Richards [23]

Answer:

those have symbols for their Latin or Greek name

Explanation:

hope it helps

8 0
2 years ago
Read 2 more answers
The brightness of a star is determined by _____.
Travka [436]

Answer:

Size and Temperature or E & B

Explanation:

7 0
2 years ago
Read 2 more answers
Nonmetals are defined as elements that generally cannot conduct:.
polet [3.4K]

Answer:

Electricity

Explanation:

Nonmetals are defined as elements that generally cannot conduct electricity

3 0
2 years ago
assuming nitrogen behaves like an ideal gas, what volume would 14.0 g of nitrogen gas (N2) occupy at STP? the gas constant is 0.
dimaraw [331]

Answer:

V = 22.41 L

Explanation:

Given data:

Mass of nitrogen = 14.0 g

Volume of gas at STP = ?

Gas constant = 0.0821 atm.L/mol.K

Solution:

Number of moles of gas:

Number of moles = mass/molar mass

Number of moles= 14 g/ 14 g/mol

Number of moles = 1 mol

Volume of gas:

PV = nRT

1 atm × V = 1 mol × 0.0821 atm.L/mol.K  × 273 K

V = 22.41 atm.L / 1 atm

V = 22.41 L

4 0
3 years ago
The edge length of the unit cell of KCl (NaCl-like structure, FCC) is 6.28 Å. Assuming anion-cation contact along the cell edge,
Mila [183]

Answer:

1.33 Å

Explanation:

Given that the edge length , a of the KCl which forms the FCC lattice = 6.28 Å

Also,

For the FCC lattice in which the anion-cation contact along the cell edge , the ratio of the radius of the cation to that of anion is 0.731.

Thus,

\frac {r^+}{r^-}=0.731 .................1

Also, the sum of the radius of the cation and the anion in FCC is equal to half of the edge length.

Thus,

r^++r^-=\frac {a}{2}  ...................2

Given that:

Cl^-\ (r^-) = 1.82\ \dot{A}

To find,

K^+\ (r^+) = ? \dot{A}

Using 1 and 2 , we get:

1.731\ r^+=0.731\times \frac {6.28}{2}

<u>Size of the potassium ion = 1.33 Å</u>

4 0
3 years ago
Other questions:
  • You are running a rather large scale reaction where you prepare the grignard reagent phenylmagnesium bromide by reacting 210.14
    6·1 answer
  • What affect would a warm body of water have on the coastline?
    7·1 answer
  • How is electrical energy used?
    10·2 answers
  • Suppose of sodium chloride is dissolved in of a aqueous solution of ammonium sulfate. Calculate the final molarity of sodium cat
    10·1 answer
  • Based on the oxidation states of the atoms in this reaction, answer the questions. 4Fe(0) + 3O2(0) → 2Fe2(3+)O3(2-) How many ele
    10·1 answer
  • The process of a liquid converting to a solid is called
    10·1 answer
  • Consider the Bohr Model of Phosphorus below. Which statement is FALSE?
    5·1 answer
  • Describe how modeling is useful in studying the structure of the atom.
    15·1 answer
  • A Herbig-Haro (HH) object is:_:_________.
    6·1 answer
  • X(OH)2 + 2HCl XCl2 +2H2O
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!