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2 years ago

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-

Chemistry

2 answers:

zalisa [80]2 years ago

5 0

Answer: 1. Mass and type of solution

2. Type of material

3. Temperature

Anestetic [448]2 years ago

3 0

Answer:

1 the physical properties is correct 2.the pH of the solution

Explanation:

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How do you find the molar mass of a compound?

kobusy [5.1K]

Answer:The molar mass of a compound cab be find by adding up all the molar mass of the element present in the compound... Check the image for more clarification

Explanation:

8 0

2 years ago

What is the wavenumber of the radiation emitted when a hydrogen

LUCKY_DIMON [66]

Answer: Wavenumber of the radiation emitted is $0.08\times 10^{8}m^{-1}$

Explanation:

The relationship between wavelength and energy of the wave follows the equation:

$E=\frac{hc}{\lambda}$

where,

E = energy of the radiation = $1.634\times 10^{-18}J$

h = Planck's constant = $6.626\times 10^{-34}Js$

c = speed of light = $3\times 10^8m/s$

$\lambda$ = wavelength of radiation = ?

Putting values in above equation, we get:

$1.634\times 10^{-18}J=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{\lambda}\\\\\lambda=12.16\times 10^{-8}m$

$\bar {\nu}=\frac{1}{\lambda}=\frac{1}{12.16\times 10^{-8}}=0.08\times 10^{8}m^{-1}$

Thus wavenumber of the radiation emitted is $0.08\times 10^{8}m^{-1}$

8 0

3 years ago

Please help!!!Which statement accurately describes relationship between weight and mass? If the picture is black just don’t answ

Mars2501 [29]

Answer:

Explanation:

Mass is a raw measurement, weight is effected by gravity

3 0

3 years ago

Read 2 more answers

Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the

mojhsa [17]

Answer:

Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the

temperature of the water. The water in the beaker began to boil when it reached the temperature of

100'C. If Mario completes the same experiment with 25mL of water, what would happen to the boiling

point?

a) The water will not reach a boil.

b) The boiling point of water will increase.

c) The boiling point of water will decrease.

d) The boiling point of water will stay the same.

Explanation:

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2 years ago

What group will elements in the 7th column bond to?

klasskru [66]

Deez Neutz..............Group 1

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3 years ago