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
cluponka [151]
3 years ago
13

A block has a mass of 20g and measures 2cm*4cm*2cm, will it sink or float?

Chemistry
1 answer:
stich3 [128]3 years ago
5 0
It will float, because it is almost weighs like a pen.
You might be interested in
Hydrogen has a volume of 1.0l and the pressure is 5.4 ATM if the initial temperature is 33 degrees c the final volume is 2.0 l a
Andre45 [30]

Answer:

487.33 K.

Explanation:

  • To calculate the no. of moles of a gas, we can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant.

T is the temperature of the gas in K.

  • If n is constant, and have two different values of (P, V and T):

<em>P₁V₁T₂ = P₂V₂T₁</em>

<em></em>

P₁ = 5.4 atm, V₁ = 1.0 L, T₁ = 33°C + 273 = 306 K.

P₂ = 4.3 atm, V₂ = 2.0 L, T₂ =??? K.

<em>∴ T₂ = P₂V₂T₁/P₁V₁</em> = (4.3 atm)(2.0 L)(306 K)/(5.4 atm)(1.0 L) = <em>487.33 K.</em>

5 0
3 years ago
2Na(s) + Cl2(g) - 2NaCl(s) + 822 kj
pychu [463]

Answer:

Is there any other part to this question? If not I'm pretty sure the answer is 205.5 kJ

Explanation:

8 0
3 years ago
Read 2 more answers
Which statement is true of the motion of the ball?
Pepsi [2]
Your answer would be answer choice D. The ball is accelerating as the velocity is increasing at a constant rate.

Hope this helps,
♥<em /><em>A.W.E.<u>S.W.A.N.</u></em>♥

3 0
3 years ago
Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy for the following redox
stealth61 [152]

Answer:

-973 KJ

Explanation:

The balanced reaction equation is;

N2H4(aq) + 2Cl2(g) + 4OH^-(aq)---------> 4Cl-(aq) + 4H ^+(aq) + 4OH^-(aq) + N2(g)

Reduction potential of hydrazine = -1.16 V

Reduction potential of chlorine = 1.36 V

From;

E°cell= E°cathode - E°anode

E°cell= 1.36 - (-1.16)

E°cell= 2.52 V

∆G°=- nFE°cell

n= number of moles of electrons = 4

F= Faraday's constant = 96500 C

E°cell = 2.52 V

∆G°=- (4 × 96500 × 2.52)

∆G°= -972720 J

∆G°= -972.72 KJ

7 0
4 years ago
Analyze your results.
raketka [301]

#b

According to Le C ha.te llors principle of we increase concentration of reactants or products equilibrium shifts.

  • Yes increases

#c

  • Rate of reaction also increases

#e

Stated in b

3 0
2 years ago
Other questions:
  • Eye and hair color are examples of what?
    7·1 answer
  • Al+Mn2+&gt;Al3++Mn. How many electrons will be lost in all?
    14·1 answer
  • Please help me! This is too hard!?
    12·1 answer
  • The mass of proton<br>1) 1072* 10-28​
    10·1 answer
  • A jeweler has five rings, each weighing g, made of an alloy of silver and gold. She decides to melt down the rings and add enoug
    10·1 answer
  • What is the process of water changing from a gas to a liquid​
    10·1 answer
  • One gram of salt in swimming pool of water could be considered a _____ solution.​
    9·2 answers
  • Which of the following alkenes is expected to have the highest heat of hydrogenation?
    7·1 answer
  • How much arsenic does it take to kill a rat
    8·1 answer
  • What is neutralisation??​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!