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
Lynna [10]
3 years ago
14

A reliable source is one that _____.

Chemistry
2 answers:
hodyreva [135]3 years ago
7 0
D. Kinda simple, don’t think much explaining is needed.
VladimirAG [237]3 years ago
4 0
D, this one doesn’t really need explanation
You might be interested in
URGENT!! This is timed, PLEASE HELP!
Andrews [41]

Answer:

99.24 gm of nitrogen .

Explanation:

molecular weight of ammonia = 17 , molecular weight of nitrogen = 28.

2 NH₃(g) + 3 CuO(s) → 1N₂(g) + 3 Cu(s) + 3 H₂O(g)

2 x 17 gm                      28 gm

( 34 gm )

34 gm of ammonia forms 28 gms of nitrogen

1 gm of ammonia   forms 28 / 34 gms of nitrogen

120.51 gn of ammonia forms 28 x 120.51 / 34 gms of nitrogen

28 x 120.51 / 34 gms

= 99.24 gms of nitrogen will be formed .

8 0
3 years ago
How many moles of co2 are there in a 50.0 dm3 sample of the gas at a pressure of 100.0 kpa and a temperature of 50°c?
Rudiy27

Answer:

  • 609 mol

Explanation:

<u>1) Data:</u>

a) n = ?

b) V = 50.0 dm³ = 50.0 liter

c) p = 100.0 kPa

d) T = 50 °C

<u>2) Physical law:</u>

  • Ideal gas law: pV = nRT,

<u>3) Constants:</u>

  • R = 0.08206 atm-liter / K-mol

<u>4) Unit conversions:</u>

  • T = 50 + 273.15 K = 323.15 K

  • P = 100.0 kPa × (1 amt  /101,325 kPa) = 0.9869 atm

<u>5) Solution:</u>

  • pV = nRT ⇒ n = pV / (RT)

  • n = 0.9869 atm × 50.0 liter / (0.08206 atm-liter /K-mol × 323.15 K)

  • n = 609 mol ← answer
7 0
3 years ago
Which property of steel is useful for making the car body circle the correct answer
zhenek [66]
Strong and good for you bro
5 0
3 years ago
Which parameter is measured directly in a coffee-cup calorimeter?
Softa [21]

Answer:

Pressure

Explanation:

5 0
3 years ago
Read 2 more answers
Where is the location of the non-metals on the periodic table​
igor_vitrenko [27]
It is at the right of it..
3 0
4 years ago
Read 2 more answers
Other questions:
  • Hummingbirds eat approximately 9.0g of sugar water per day
    6·1 answer
  • For the reaction: ch3oh(g) ⇌ co(g) + 2h2(g), with the equilibrium concentrations for [ch3oh]=0.20 m, [co]=0.44 m, and [h2]=2.7 m
    14·1 answer
  • 5. Which of the following statements about the modern
    6·1 answer
  • NEED HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • What are the different components that make up a chemical formula?
    12·1 answer
  • A sample of 1.44 g of helium and an unweighed quantity of O₂ are mixed in a flask at room temperature. The partial pressure of h
    6·1 answer
  • Los campers ________ por un parque cerca del camping. Question options: dan una caminata se duermen toman una ducha
    9·1 answer
  • Na-23 has 12 neutrons.what is its atomic number?<br> A.11<br> B.12<br> C.23<br> D.34
    5·1 answer
  • 1C. You just have made unstable atoms.How can you make them stable?
    6·1 answer
  • Which is older? Dinosaurs or Grasshoppers?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!