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
Lyrx [107]
2 years ago
8

What is the order of the spheres from the surface to space? NEED ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
Usimov [2.4K]2 years ago
3 0

Answer:

Explanation:

trust me

You might be interested in
Ethyl alcohol evaporates faster then water, why?​
kodGreya [7K]

Answer:

because it melting point is low

7 0
3 years ago
Read 2 more answers
a glass container was initially charged with 1.50 mol of a gas sample at 3.75 atm and 21.7C. some of the gas was release as the
butalik [34]

Answer:

0.39 mol

Explanation:

Considering the ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

At same volume, for two situations, the above equation can be written as:-

\frac {{n_1}\times {T_1}}{P_1}=\frac {{n_2}\times {T_2}}{P_2}

Given ,  

n₁ = 1.50 mol

n₂ = ?

P₁ = 3.75 atm

P₂ = 0.998 atm

T₁ = 21.7  ºC

T₂ = 28.1 ºC

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (21.7 + 273.15) K = 294.85 K  

T₂ = (28.1 + 273.15) K = 301.25 K  

Using above equation as:

\frac{{n_1}\times {T_1}}{P_1}=\frac{{n_2}\times {T_2}}{P_2}

\frac{{1.50\ mol}\times {294.85\ K }}{3.75\ atm}=\frac{{n_2}\times {301.25\ K  }}{0.998\ atm}

n_2=\frac{{1.50}\times {294.85}\times 0.998}{3.75\times 301.25}\ mol

Solving for n₂ , we get:

n₂ = 0.39 mol

7 0
3 years ago
A fruit and oatmeal bar contains 142 nutritional calories. Convert this energy to calories
Alekssandra [29.7K]
Answer is: a<span> fruit and oatmeal bar contains 142000 calories.
</span>A nutritional calorie<span>, or kilocalorie, is equal to 1000 calories.
</span>E = 142 kcal · 1000 cal/kcal.
E = 142 000 cal.
Calorie (cal)<span>, or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.
</span><span>One small calorie is approximately 4.2 joules.
</span>A calorie is a unit of energy.
8 0
3 years ago
The student placed 10 mL of PbCl2 (saturated solution) in the test tube and added a pinch of NaCl. A white precipitate of PbCl2
NNADVOKAT [17]
PbCl₂(aq) → Pb²⁺(aq) + 2Cl⁻(aq)

NaCl(aq) → Na⁺(aq) + Cl⁻(aq)

Pb²⁺(aq) + 2Cl⁻(aq) ⇄ PbCl₂(s) 

At increase the concentration of chloride ions - concentration of lead ions decreases, the lead chloride is formed. 

5 0
3 years ago
Read 2 more answers
Technetium 99 releases a gamma ray
GenaCL600 [577]

what?? please reword this

6 0
3 years ago
Other questions:
  • Which term describes matter that is a substance made of diffrent kinds of atoms bonded together
    8·1 answer
  • A reaction occurs via the following sequence of elementary steps. What is the reaction intermediate?
    12·1 answer
  • PLS HELP FAST WILL GIVE BRAINLEST
    11·1 answer
  • In the following description of Fe, some of the properties are physical and some are chemical. Identify which of the properties
    6·1 answer
  • Why must oxidation be accompanied by a reduction?
    14·2 answers
  • A gas with a volume of 20.0l at a pressure of 275 kpa is allowed to expand to a volume of 35.0l. what is the pressure in the con
    10·1 answer
  • What makes an element the same as another element
    6·1 answer
  • How many times do you have to lick a tooties roll pop to get to the middle?
    13·2 answers
  • 1.) ____ N2 + ____ H2 ---------&gt;___NH3
    15·1 answer
  • Location E is located at the Tropic of Cancer, while location F is at the equator. Which location is likely to be warmer at the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!