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
marin [14]
3 years ago
6

A heterogeneous mixture consists of visibly different substances or phases.

Chemistry
1 answer:
Virty [35]3 years ago
7 0

A compound is a chemical combination of two or more elements in definite proportions.  For example, two hydrogen molecules + one oxygen molecule= one water molecule.  A solution is a physical...

You might be interested in
When the pressure of a gas doubles, the new volume
s344n2d4d5 [400]

Answer:

yes it does

Explanation:

6 0
3 years ago
For any molecule at the surface the resulting surrounding forces equal zero
Katarina [22]
False is the correct answer
4 0
3 years ago
Read 2 more answers
Perform the following mathematical operation and report the answer to the correct number of significant figures? ( I have watche
professor190 [17]

0.008 ÷ 51.3 = 0.0002

Sig Figs

1

0.0002

Decimals

4

0.0002

Scientific Notation

2 × 10-4

E-Notation

2e-4

Words

zero point zero zero zero two

I HOPE I HELP

7 0
3 years ago
A water bottle has a mass of 14.0g. Given a density of 1.38g/cm^3, what is the volume of the plastic used to make the water bott
Kipish [7]

Answer:

\boxed{\sf Volume \ of \ plastic \ used = 10.14 \ cm^3}

Given:

Mass = 14.0 g

Density (\rho) = 1.38 g/cm³

To Find:

Volume (V)of the plastic used to make water bottle

Explanation:

Formula:

\boxed{ \bold{Density \ (\rho) = \frac{Mass \ (m)}{Volume \ (V)}}}

Substituting value of m & density in the formula:

\sf \implies 1.38 =  \frac{14.0}{V} \\  \\   \sf \implies V =  \frac{14.0}{1.38} \\  \\   \sf \implies V = 10.14 \ cm^3

\therefore

Volume of the plastic used to make water bottle = 10.14 cm³

6 0
3 years ago
Hydrofluoric acid and Water react to form fluoride anion and hydronium cation, like this HF(aq) + H_2O(l) rightarrow F(aq) + H_3
maksim [4K]

Answer:

Kc = 1.09x10⁻⁴

Explanation:

<em>HF = 1.62g</em>

<em>H₂O = 516g</em>

<em>F⁻ = 0.163g</em>

<em>H₃O⁺ = 0.110g</em>

<em />

To solve this question we need to find the moles of each reactant in order to solve the molar concentration of each reactan and replacing in the Kc expression. For the reaction, the Kc is:

Kc = [H₃O⁺] [F⁻] / [HF]

<em>Because Kc is defined as the ratio between concentrations of products over reactants powered to its reaction coefficient. Pure liquids as water are not taken into account in Kc expression:</em>

<em />

[H₃O⁺] = 0.110g * (1mol /19.01g) = 0.00579moles / 5.6L = 1.03x10⁻³M

[F⁻] = 0.163g * (1mol /19.0g) = 0.00858moles / 5.6L = 1.53x10⁻³M

[HF] = 1.62g * (1mol /20g) = 0.081moles / 5.6L = 0.0145M

Kc = [1.03x10⁻³M] [1.53x10⁻³M] / [0.0145M]

<h3>Kc = 1.09x10⁻⁴</h3>
7 0
3 years ago
Other questions:
  • Why might a dry atmosphere cause your crystal to fracture and to eventually become a
    12·1 answer
  • Substances change temperature at different rates because of their
    6·1 answer
  • What is the difference between acidic and basic solutions in working with
    5·1 answer
  • HELP NEEDED 20POINTS i have alot of questions of PATTERNS OF INHERITANCE
    14·2 answers
  • Kinetic energy is the energy of motion.<br><br> a) True<br><br> b) False
    6·2 answers
  • If the pressure of a 2.00 L sample of gas is 50.0 kPa, what pressure does the gas exert if its volume is decreased to 20.0 mL?
    9·1 answer
  • Answer with correct significant figures (*no scientific notation): 847.3219 x 34.6 x 1.4560 =
    8·1 answer
  • Helppppppp plzzzzzzzzz
    11·1 answer
  • The name of the chemical reaction
    11·1 answer
  • How do double replacement reactions relate to Combustion reactions
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!