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
trapecia [35]
3 years ago
9

Each type of mineral has a chemical composition that is

Chemistry
1 answer:
Rus_ich [418]3 years ago
7 0
Answer: C. variable depending on where its found

The chemical compositions of minerals is very necessary in order to define or describe a certain mineral. Some minerals can be written in simple chemical formula while others are also written in complicated chemical formulas.

You might be interested in
Suppose that a certain biologically important reaction is quite slow at physiological temperature (37 oC) in the absence of a ca
Oksi-84 [34.3K]

Answer:

30 kJ

Explanation:

Arrhenius equation is given by:

k=Aexp(-Ea/RT)\\

Here, k is rate constant, A is Pre-exponential factor, Ea is activation energy and T is temperature.

taking natural log of both side

ln k = ln A - Ea/RT

In Arrhenius equation, A, R and T are constant.

Therefore,

ln\frac{k_2}{k_1} =\frac{Ea_1-Ea_2}{RT}

Ea_1-Ea_2 is the  lowering in activation energy by enzyme,

R = 8.314 J/mol.K

T = 37°C + 273.15 = 310 K

\frac{k_2}{k_1} =1\times 10^5

ln 1\times 10^5 =\frac{Ea_1-Ea_2}{RT}\\{Ea_1-Ea_2} = 11.512 \times 8.314 \times 310\\=29670\ J\\=30\ kJ

4 0
3 years ago
How do tidal bulges form?
Troyanec [42]

Answer: The pull of the moon's gravity on Earth's water causes tidal bulges to form on the side closest to the moon and farthest from the moon. In the place where there are tidal bulges, high tide occurs along coastline.

Explanation:

4 0
2 years ago
Unscramble dreor to get a science answer
lesantik [10]
Order. 
Hope this helps! :)
5 0
3 years ago
Read 2 more answers
Need help ASAP much appreciated for those who answer
Lelechka [254]

Answer:

  The rate of the forward reaction is equal to the rate of the reverse reaction

Explanation:

Equilibrium is a condition in which the net force for change is zero.

In chemistry, equilibrium exists when reactant concentrations in a reaction are not changing. This condition means the reaction proceeding left to right in the reaction equation is producing products at the same rate those products are being used up by the reaction proceeding right to left. In short, the rate of the forward reaction is equal to the rate of the reverse reaction.

6 0
3 years ago
Read 2 more answers
Whats the mass of a 1.25L sample of liquid that has a density of 0.921g/mL?
Zarrin [17]
Hey there!

Volume in mL :

1.25 * 1000 => 1250 mL 

Density = 0.921 g/mL

Therefore:

Mass = density * volume

Mass = 0.921 * 1250

Mass = 1151.25 g 
8 0
3 years ago
Other questions:
  • How many molecules are in 28 grams of nitrogen gas in balloons?
    7·1 answer
  • What is produced during all combustion reactions?
    9·2 answers
  • How do you calculate the number of photons having a wavelength of 10.0 micrometers required to produce 1.0 kilojoules of energy
    5·1 answer
  • Heptane, pentane and octane are accidentally mixed. They all have different boiling points. Pentane boils at 360 ° C, hexane boi
    11·1 answer
  • How do I solve this?
    15·1 answer
  • 2H2 + O2 --> 2H2O can be classified as what type of reaction?
    6·2 answers
  • PLEASEE HELPP ME WITH THIS QUESTIONN!!!!!1
    6·1 answer
  • How to make a covalent bond
    6·2 answers
  • Necesito ayuda con esto no le entiendo nada
    13·1 answer
  • 1
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!