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
EleoNora [17]
2 years ago
7

Please help! it’s due date is in a few minutes

Chemistry
1 answer:
Licemer1 [7]2 years ago
7 0

Answer:

40'0'

Explanation:

X is smaller than |-40|

You might be interested in
1. Which groups of atoms become MORE stable when they lose an electron?
FinnZ [79.3K]
Probably Metal atoms?
8 0
3 years ago
Which statement is correct?
rosijanka [135]

Answer:

B. Chemical changes produce new substances; physical changes do not.

Explanation:

Physical changes only alter appearances, while chemical changes are interactions that create new chemical formulas.

4 0
2 years ago
A block of metal has dimensions of 2 cm by 5 cm by 6 cm. The block weighs 780 g. From this information, calculate the mass, volu
adoni [48]

Answer:

mass = 78 grams

volume= 2*5*6=60cm^3

density =m/v

=78/60

13/10=1.3 g/cm^3

4 0
2 years ago
Pls help 6th grade science
lys-0071 [83]

Answer:

C.)

Explanation:

I also saw this question on Brainly! Hope this helps!

5 0
2 years ago
Calculate the molar solubility of ag2so4 in each solution below. the ksp of silver sulfate is 1.5 × 10−5. (a) 0.36 m agno3: (b)
Lana71 [14]

Answer:

a) 1.157 x 10⁻⁴ M.

b) 0.0032 M.

Explanation:

  • Ag₂SO₄ is sparingly soluble salt in water which is dissociate according to:

<em>Ag₂SO₄ ⇄ 2Ag⁺ + SO₄²⁻.</em>

Ksp = [Ag⁺][SO₄²⁻] = (2s)²(s) = 1.5 x 10⁻⁵.

4s³ = 1.5 x 10⁻⁵.

s³ = 1.5 x 10⁻⁵/4 = 3.75 x 10⁻⁶.

∴ s = ∛(3.75 x 10⁻⁶) = 0.0155 M.

<em>a) 0.36 M AgNO₃:</em>

  • The dissociation of Ag₂SO₄: Ag₂SO₄ ⇄ 2Ag⁺ + SO₄²⁻, will be accompanied by the ionization of AgNO₃:

<em>AgNO₃ → Ag⁺ + NO₃⁻.</em>

  • So, the concentration of Ag⁺ will be that of AgNO₃  and Ag₂SO₄:

[Ag⁺] = (2s + 0.36)², s is neglected with respect to 0.36 M the concentration resulted from AgNO₃.

So, [Ag⁺] = (0.36)².

∴ Ksp = [Ag⁺][SO₄²⁻] = (0.36)²(s) = 1.5 x 10⁻⁵.

<em>∴ s </em>= 1.5 x 10⁻⁵/(0.36)² =<em> 1.157 x 10⁻⁴ M.</em>

<em>b) 0.36 M Na₂SO₄:</em>

  • The dissociation of Ag₂SO₄: Ag₂SO₄ ⇄ 2Ag⁺ + SO₄²⁻, will be accompanied by the ionization of Na₂SO₄:

Na₂SO₄ → 2Na⁺ + SO₄²⁻.

  • So, the concentration of SO₄²⁻ will be that of Na₂SO₄  and Ag₂SO₄:

[SO₄²⁻] = (s + 0.36), s is neglected with respect to 0.36 M the concentration resulted from Na₂SO₄.

<em>So, [SO₄²⁻] = (0.36).</em>

∴ Ksp = [Ag⁺][SO₄²⁻] = (2s)²(0.36) = 1.5 x 10⁻⁵.

∴ 4s² = 1.5 x 10⁻⁵/(0.36) = 4.166 x 10⁻⁵.

∴ s² = 4.166 x 10⁻⁵/4 = 1.042 x 10⁻⁵.

<em>∴ s</em> = √(1.042 x 10⁻⁵) = <em>0.0032 M.</em>

7 0
3 years ago
Other questions:
  • What is the mass of KOH found in a 785 mL of a 1.43 M solution of KOH
    13·1 answer
  • An atom is
    15·2 answers
  • Consider the following types of electromagnetic radiation:
    15·1 answer
  • Describe the atomic theory of atoms. How does this help us understand differences the three states of matter?
    8·1 answer
  • The two products that are formed when a solution of HNO3 and a solution of NaOH react are water and:
    9·2 answers
  • An reading of 8 on the pH scale is indicative of?
    9·2 answers
  • This type of bonding can be described as a "cooperation" A. lonic B. metallic C. covalent​
    12·2 answers
  • What is the density of a substance that has a volume of 14 millimeters and a mass of 13.2 grams.
    5·1 answer
  • In an ionic bond, electrons are ___________________. Choose all the apply.
    11·2 answers
  • N₂ + 3H2 → 2NH3
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!