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3 years ago

Drag the types of electromagnetic waves to place them in order of increasing wavelength.

Chemistry

2 answers:

patriot [66]3 years ago

3 0

From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared

Fed [463]3 years ago

3 0

Answer:

Visible light

Ultraviolet

Infrared

Explanation:

Increasing wavelength of different types of electromagnetic waves always start with visible light. It just makes sense, it's the stuff that we can see, it won't/can't harm us. Usually, that spectrum usually ends with Gamma rays. Because those, especially Gamma, are the most harmful to the human body. So, if you ever try to order these types of waves, always start with visible and end with Gamma.

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Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:

Leni [432]

Answer: (1)CaSO4 -> (2)O2 + (1)CaS

Explanation: edge 2020 chem

5 0

3 years ago

Which statement describes what is gained or lost during radioactive decay?

Karolina [17]

Answer:

The answer is

Atoms gain other atoms

Hope this helps you

3 0

3 years ago

Determine the mass in grams of 4.69 x 1021 atoms of barium. (The

Virty [35]

Answer:

1.07 g Ba

Explanation:

Hello there!

In this case, according to the definition of the Avogadro's number and the molar mass, it is possible to say that 6.022x10^{23} atoms of barium equal one mole, and at the same time, 1 mole equals 137.327 grams of this element; thus, it is possible to say that 6.022x10^{23} atoms of barium have a mass of 137.327 grams; therefore, it i possible for us to calculate the required mass in grams as shown below:

$4.69x10^{21}atoms*\frac{137.327gBa}{6.022x10^{23} atoms} \\\\=1.07gBa$

Best regards!

5 0

3 years ago

A sample of nitrogen gas has a mass of 48.6 grams. How many N2 molecules are there in the sample? molecules Submit Answer &

marysya [2.9K]

Answer:

There are 1.05 x 10²⁴ molecules in 48.6 g N₂

Explanation:

1 mol of N₂ has a mass of (14 g * 2) 28 g.

Then, 48.6 g of N₂ will be equal to (48.6 g *(1 mol/ 28 g)) 1.74 mol.

Since there are 6.022 x 10²³ molecules in 1 mol N₂, there will be

(1.74 mol *( 6.022 x 10²³ / 1 mol)) 1.05 x 10²⁴ molecules in 1.74 mol N₂ (or 48. 6 g N₂).

6 0

3 years ago

Classify each item by matching as organic

Aloiza [94]

<span>Table salt is inorganic TNT is organic Glucose is organic 2,4-D is organic Limestone is inorganic Water is inorganic What makes a compound organic is the presence of a carbon, with the exception of cabonates. In this case all of the compounds in this list that have carbon except for CaCO3, are organic and the other compounds are inorganic.</span>

3 0

3 years ago