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Varvara68 [4.7K]
3 years ago
12

Is this any better??

Chemistry
1 answer:
Anna11 [10]3 years ago
3 0
I believe there is an error or incorrect word for the first question, but all you have to do to solve for these questions is to make use of the formula

D = m/v, solve for the correct variable by doing the opposite operation.

Divide - multiply

Vice versa.

Then solve for the asked variable.

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. H ow many milliliters of water must be added to 250 mL of a 25% w/v stock solu- tion of sodium chloride to prepare a 0.9% w/v
vaieri [72.5K]
The right answer would be
4 0
3 years ago
Us
Marina CMI [18]

Answer:

Molar mass = 30.026 g/mol

Explanation:

Let Molar mass be mm

mm of CH2O = 12.01 + 2(1.008) + 16.00

= 12.01 + 2.016 + 16.00 = 30.026 g/mol

6 0
2 years ago
What is it called when a nucleus ejects high energy photons
Burka [1]

Answer:

Photodisintegration!

Explanation:

also called Phototransmutation, in physics, nuclear reaction in which the absorption of high-energy electromagnetic radiation (a gamma-ray photon) causes the absorbing nucleus to change to another species by ejecting a subatomic particle, such as a proton, neutron, or alpha particle.

5 0
3 years ago
Based on what you have read about wind turbines and dams, how does a generator work? A loop of Answer spins in a Answer field, p
vazorg [7]

Based on what you have read about wind turbines and dams, how does a generator work? A loop of ______ spins in a ______ field, producing ______ current.

Answer:

Wire

Magnetic

Electric

Explanation:

The generator works on the principle of converting mechanical energy into electrical energy.

For example in a wind turbine generator, the mechanical energy is the wind that pushes the blades of the turbine directly that leads to conversion of this it's linear motion to the rotary motion required to make rotor of the generator to spin. Finally, the harder the wind pushes, the more the mechanical energy applied and consequently, the more electrical energy can be generated.

Now, all generators work because of the effect of the magnetic field moving past an electrical coil.

Thus, the movement of a magnet across a single loop of wire produces a voltage that is induced within the wire loop as a result of the magnetic field produced by the magnet.

As a voltage is induced across the wire loop, electrons begin to flow around the loop thereby generating electric current.

8 0
3 years ago
Which of these are highest in fat?<br><br> Almonds<br> Butter<br> Sesame oil
agasfer [191]

Answer:

almonds and sesame oil have the same amount of fat.

Explanation:

Almonds: 14 g

Butter: 12 g

Sesame Oil: 14 g

7 0
3 years ago
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