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
pashok25 [27]
3 years ago
14

20 POINTS!! please helps me with this word bank!! due today!! you can use a word more than once please help

Chemistry
2 answers:
Bogdan [553]3 years ago
7 0

Answer:

zoom in please i cant see

Explanation:

harkovskaia [24]3 years ago
5 0

Answer:

its too small please crop and repost

You might be interested in
How many protons electrons and neutrons does the isotope nitrogen 15 have
Ivenika [448]
Answer:

The atomic number of<span>N<span>157</span></span> 
The number of protons is 7
The number of electrons is 7
The number of neutrons is 8

Explanation:

The atomic number of Nitrogen is 7 because Nitrogen has 7 protons. 
The seven protons attract 7 electrons in the ground state.

If the atom had fewer or more than 7 protons the atom would not be Nitrogen.

The mass of the atom is the sum of protons and neutron. so

p + n = mass ( protons (p) and neutrons(n) both have an atomic mass of one

7 + n = 15 subtract 7 from both sides

<span>7−7+n=15−7</span>

n = 8

4 0
2 years ago
4. What is the bridge that allows you to convert from the given substance to the wanted substance
Dmitry_Shevchenko [17]
I’m not sure if this is what you are referring to but there is something called a moles bridge which allows you to convert from one substance to another
6 0
3 years ago
How are ocean waves formed? gravity energy transfer conduction radiation​
ziro4ka [17]
I think is energy passing and if its not im so sorry :(((
8 0
2 years ago
Read 2 more answers
Reynolds number E. What is the mean velocity u. (ft/s) and the Reynolds number Re = pu., D/ for 35 gpm (gallons per minute) of w
Novay_Z [31]

Answer:

The mean velocity is 13 ft/s.

The Reynolds number is 88,583 and it is dimensionless.

Explanation:

We have water flowing in a pipe of 1.05 in diameter.

The density is ρ=62.3 lb/ft and the viscosity is 1.2 cP.

The mean velocity can be calculated as

u=\frac{Q}{A}=\frac{Q}{\pi*D^2/4}=\frac{35gpm }{3.14*(1.05in)^2/4}\\\\  u=\frac{35}{0.865}*\frac{gal}{min}\frac{1}{in^2}*\frac{231in^3}{1gal}*\frac{1}{60s} \\\\    u=156\,in/s=13\,ft/s

The Reynolds number now can be calculated for this flow as

Re=\frac{\rho*u*D}{\mu}

being ρ: density, u: mean velocity of the fluid, D: internal diameter of the pipe and μ the dynamic viscosity.

To simplify the calculation, we can first make all the variables have coherent units.

<em>Viscosity</em>

\mu=1.2cP=\frac{1.2}{100}\frac{g}{cm*s}*\frac{1lb}{453.6g}*\frac{30.48cm}{1ft}= 0.0008\frac{lb}{ft*s}

<em>Diameter</em>

D=1.05in*(\frac{1ft}{12in} )=0.0875ft

Then the Reynolds number is

Re=\frac{\rho*u*D}{\mu}\\\\Re=62.3\frac{lb}{ft^3}*13\frac{ft}{s} *0.0875ft*\frac{1}{0.0008}*\frac{ft*s}{lb}\\\\Re=88,583

8 0
2 years ago
Mrs. Smith is demonstrating a chemical change for her class. She places 15 grams of baking soda into a beaker. Next she adds 15
vichka [17]

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

∴ B is the Answer

4 0
3 years ago
Read 2 more answers
Other questions:
  • Light is released when an excited electron moves from higher energy level back down to its lower, more stable energy level. The
    10·2 answers
  • When bases dissolve in water they release what type of negative ion?
    7·1 answer
  • Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis
    14·1 answer
  • What are the two factors that affect the strength of gravity
    12·1 answer
  • The rate at which energy is transferred is called a power b kinetic energy c work d time
    11·2 answers
  • What are some common tools scientists use to measure length and mass?
    14·1 answer
  • Why does nitrogen have the lowest volume in the atmosphere on average?
    10·1 answer
  • How many milliliters of 0.0896M LiOH are required to titrate 25.0 mL of 0.0759M HBr to the equivalence point?
    6·1 answer
  • A large room contains moist air at 308C, 102 kPa. The partial pressure of water vapor is 1.5 kPa. Determine
    10·1 answer
  • PH que tendra una solución cuya concentracion de [OH-] = 1x10-4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!