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
gladu [14]
2 years ago
15

Which of the following would be a clue that a rock is sedimentary?​

Chemistry
2 answers:
Masteriza [31]2 years ago
8 0
I do not see any possible answers that you have posted. But a good idea would be that it might have fossils, water currents, mud cracks, usually form in shallow seas. Hope this helps!
PSYCHO15rus [73]2 years ago
7 0

Answer:

no

Explanation:

You might be interested in
1. An electric power plant uses energy from burning coal to generate steam at 450 °C. The plant is cooled by 20 °C water
kap26 [50]

Answer:

Explanation:

Efficiency of the electric power plant is e=1-\frac{T_{2}}{T_{1}}

Here Temperature of hot source T_{1} = 450^{o}C=450+273=723 K

and Temperature of sink T_{1} = 20^{o}C=20+273=293 K

Hence the efficiency is  e=1-\frac{293}{723}=0.5947=59.47%

Now another formula for thermal efficiency Is

e_{therm}=\frac{Q_{1}-Q_{2}}{Q_{1}}=\frac{W}{Q_{1}}

Here QI is the of heat taken from source 100 MJ ; Q2 of heat transferred to the sink (river) to be found

W is the of work done and W = QI -Q2

Hence Frome_{therm}=\frac{Q_{1}-Q_{2}}{Q_{1}}=\frac{W}{Q_{1}}

W=e(Q_{1})=(0.5947)(100)=59.47MJ

Hence the of heat transferred to the river Is Q_{2} -W = (100 -59.47=40.53

6 0
3 years ago
Ions that are present before and after a neutralization reaction are
VikaD [51]

Answer:

spectator ions

Explanation:

8 0
3 years ago
A substance that loses electron and itself is oxidized is called a?​
Verdich [7]

Answer:

oxidation-reduction or redox reaction

Explanation:

n

8 0
3 years ago
Read 2 more answers
Under certain conditions Argon gas diffuses at a rate of 3.2 cm per second under the same conditions an unknown gas diffuses at
kozerog [31]

Answer:

20 g/mol

Explanation:

We can use <em>Graham’s Law of diffusion</em>:

The rate of diffusion (<em>r</em>) of a gas is inversely proportional to the square root of its molar mass (<em>M</em>).

r = \frac{1 }{\sqrt{M}}

If you have two gases, the ratio of their rates of diffusion is

\frac{r_{2}}{r_{1}} = \sqrt{\frac{M_{1}}{M_{2}}}

Squaring both sides, we get

(\frac{r_{2}}{r_{1}})^{2} = \frac{M_{1}}{M_{2}}

Solve for <em>M</em>₂:

M_{2} = M_{1} \times (\frac{r_{1}}{r_{2}})^{2}

M_{2} = \text{39.95 g/mol} \times (\frac{\text{3.2 cm/s}}{\text{4.5 cm/s}})^{2}= \text{39.95 g/mol} \times (0.711 )^{2}

= \text{39.95 g/mol} \times 0.506 = \textbf{20 g/mol}

7 0
3 years ago
What is the name of the compound with the formula NaOH ?
vladimir2022 [97]

Answer:

Sodium hydroxide

Explanation:

Sodium hydroxide ( NaOH ) -

Sodium hydroxide is an inorganic compound , and is also called caustic soda and lye .

It is an ionic compound , which is white in color and is in solid state .

The cation and anion of this salt are the sodium cation Na⁺  and the hydroxide anions OH⁻ .

<u>It is highly basic in nature and is soluble in water , and when left open in air it can readily absorb moisture from the air , to form a hydrated sodium hydroxide .</u>

4 0
3 years ago
Other questions:
  • I NEED HELP ASAP PLEASEEE
    13·1 answer
  • A chemist prepares a solution of silver perchlorate by measuring out of silver perchlorate into a volumetric flask and filling t
    10·1 answer
  • What is Carbons position on the Periodic table?
    13·1 answer
  • Which contribution added to Rutherford's discovery of a positive nucleus?
    9·1 answer
  • Who was the first person to propose that atoms existed?
    13·2 answers
  • Constituent elements of bronze
    13·1 answer
  • PLEASE HELP
    12·1 answer
  • Which condition will probably not increase
    5·1 answer
  • The indicator methyl red has different molecular structures at high and low pH.
    9·1 answer
  • Which of the following statements accurately describes the structure of the atom?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!