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
vivado [14]
4 years ago
10

1.) Balance the following chemical equation: ___KOH + ___H₃PO₄ → ____K₃PO₄ + ___H₂O 2.) Balance the following chemical equation:

___Al(OH)₃ + ___HCl → ___AlCl₃ + ___H₂O 3.) Balance the following chemical equation: ___Fe₂O₃ + ___CO → ___CO₂ + ___Fe 4.) Balance the following chemical equation: ___AgI + ___Fe₂(CO₃)₃ → ___FeI₃ + ____Ag₂CO₃ There are four blanks on each and if there is no coefficient needed place a "1" in the blank

Physics
1 answer:
Akimi4 [234]4 years ago
7 0

Answer:

The first one put 1's

Explanation:

You might be interested in
Suppose two carts, one twice as massive as the other, fly apart when the
disa [49]

Answer:

the question this morning

Explanation:

90+70 look than

8 0
3 years ago
A coiled telephone cord forms a spiral with 90.0 turns, a diameter of 1.30 cm, and an unstretched length of 57.0 cm. Determine t
Vinvika [58]

Answer:

2.36 μ H

Explanation:

Given,

Number of turns= 90

diameter = 1.3 cm = 0.013 m

unscratched length = 57 cm  = 0.57 m

Area, A = π r²

            = π x 0.0065² = 1.32 x 10⁻⁴ m²

 we know,

   L = \dfrac{\mu_0N^2A}{l}

   L = \dfrac{4\pi \times 10^{-7}\times 90^2\times 1.32\times 10^{-4}}{0.57}

    L = 2.36 μ H

Hence, the inductance of the unstretched cord is equal to 2.36 μ H

8 0
3 years ago
Would water molecules in Venus’ atmosphere, whose temperature is 740 K, escape into outer space? A water molecule has a mass tha
Akimi4 [234]

Answer:

The water molecule cannot escape, since the average velocity of the water molecules is less than one sixth of the escape velocity of venus.

Explanation:

The average speed of gas molecules is given by:

v_{rms}=\sqrt{\frac{3RT}{M}}

R is the gas constant, T is the temperature and M the molar mass of the gas.

We know that a water molecule has a mass that is 18 times that of a hydrogen atom:

M_H=1.01*10^{-3}\frac{kg}{mol}\\M_{H2O}=18M_H=0.02\frac{kg}{mol}

So, we have:

v_{rms}=\sqrt{\frac{3(8.314\frac{J}{mol \cdot K})740K}{0.02\frac{kg}{mol}}}\\v_{rms}=960.65\frac{m}{s}*\frac{1km}{1000m}=0.96\frac{km}{s}

The water molecule cannot escape, since the average velocity of the water molecules is less than one sixth of the escape velocity of venus:

10\frac{km}{s}*\frac{1}{6}=1.6\frac{km}{s}\\0.96\frac{km}{s}

4 0
3 years ago
Formula for percentage error​
GarryVolchara [31]

Answer:

PE = (|accepted value – experimental value| \ accepted value) x 100%

Explanation:

7 0
3 years ago
An Apple falls from a tree and one-half second later hits the ground
docker41 [41]
There isnt enough information to answer the question, the missing variable is "distance from said falling spot and ground"
8 0
3 years ago
Other questions:
  • Adults with Down syndrome can often find work because they have received _____.
    11·2 answers
  • Element of thunderstorms heavy rain
    13·1 answer
  • What is the difference between speed and velocity? Speed is rate of motion of an object and velocity is what direction Speed is
    11·1 answer
  • Click the Run Now button to start the simulations. Select "Many rays" and click the Screen checkbox. You should see a lamp and a
    6·1 answer
  • A bug flying horizontally at 0.65 m/s collides and sticks to the end of a uniform stick hanging vertically. After the impact, th
    12·1 answer
  • What is 18000 expressed in scientific notation​
    11·2 answers
  • Images at home that represent conduction convection and radiation
    6·1 answer
  • according to the law of conservation of energy , energy is neither created nor destroyed , then from where electrons get their e
    5·1 answer
  • Please help!! This is the last question and i’m unsure! I will mark brainliest! Please try to provide a explanation you don’t ha
    13·1 answer
  • What happens to temperature of a substance during phase change
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!