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Bingel [31]
3 years ago
10

The question in the picture, im not sure if my answer is correct, what is the correct answer?​

Chemistry
1 answer:
White raven [17]3 years ago
3 0

Answer:

ur correct

Explanation:

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Can someone do these? Brainliest included
mixas84 [53]

Answer:

Explanation:

6.         p⁺      e⁻

Ca²⁺    20     18

F⁻          9      10

O²⁻        8      10

Na⁺       11      10

7. Physical properties of matter are properties that can be measured or observed without matter changing to an entirely different substance. These include odor, boiling point, melting point, density, electrical conductivity and heat conductivity.

Separation of mixture:

Chromatography involves solvent separation on a solid medium.

Distillation takes advantage of differences in boiling points.

Evaporation removes a liquid from a solution to leave a solid material.

Filtration separates solids of different sizes.

Funnel partitioning with solvents. Solvent dissolves one component but not the other.

8.Bulk Elements => Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur & Phosphouous

Microminerals are those minerals needed in less than 100 mg quantities. Trace minerals or trace elements are usually needed in microgram quantities. Microminerals include iron, zinc, copper, iodine, fluoride, chromium, cobalt, selenium, manganese, and molybdenum.

Diatomic Molecules => H₂, N₂, O₂, F₂, Cl₂, Br₂, I₂

9. Electron Configurations

    Na: 1s²2s²2p⁶3s¹ => valence = 3s¹

    N:   1s²2s²2p³ => valence = 2s²2p³

    Al:  1s²2s²2p⁶3s²3p¹ => valence = 3s²3p¹

Valence is the highest principle quantum number (or, principle energy level  ~ ring) in the electron configurations.

10.moles of glucose = 450g/180.16 g/mol =2.50 moles

   C₂H₆O₂ = 2(12) + 6(1) + 2(16) = 24 + 6 + 32 = 62 g/mole

7 0
2 years ago
You are a chemist working in your laboratory. In your storage closet you have a
Nastasia [14]
Ans is B.Bromine. Only two elements are liquid at room temperature ( mercury and Bromine) . Helium and chlorine, arsenic are gases.
8 0
3 years ago
Select all that apply: Select the benefits of sexual reproduction.
malfutka [58]
Sexual reproduction promotes adaptations, increases genetic diversity, and increases chances of survival. 
6 0
3 years ago
An object with the mass of 2300 g has a force of 6.2 Newton's applied to it. What is the resulting acceleration of the object?
Triss [41]

Answer:

\boxed {\boxed {\sf a\approx 2.7 \ m/s^2}}

Explanation:

Force is equal to mass times acceleration.

F=m*a

By dividing both sides by m, we rearrange the formula for a (acceleration).

\frac{F}{m} =a

The force is 6.2 Newtons, but we can convert the units to make the problem easier later on.

  • A Newton is equal to 1 kg*m/s², so 6.2 N is equal to 6.2 kg*m/s².

The mass is 2300 grams, but we need to convert it to kilograms.

  • To convert grams to kilograms, divide by 1,000
  • 2300 g/1000= 2.3 kg

F= 6.2 \ kg*m/s^2\\m=2.3 \ kg

Substitute the values into the formula.

a=\frac{6.2 \ kg*m/s^2}{2.3 \ kg}

Divide. Note that the kilograms or "kg" will cancel each other out (this is why we converted the units).

a=\frac{6.2 \ m/s^2}{2.3 \ }

a=2.69565217 \ m/s^2

Round to the nearest tenth. The 9 in the hundredth place tells us to round up to 2.7

a\approx 2.7 \ m/s^2

The acceleration is about <u>2.7 meters per second squared.</u>

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3 years ago
A transverse and longitudinal wave combine to form __________. a sound wave a radio wave a surface wave an electromagentic wave
prisoha [69]
A transverse and longitudinal wave combine to form a Water Wave.
4 0
3 years ago
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