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ANEK [815]
3 years ago
9

Which statement describes electromagnetic waves with wavelengths greater than 700 nanometers?

Chemistry
2 answers:
Stells [14]3 years ago
7 0

Answer:

They take the form of heat.  

Explanation:

Electromagnetic waves with wavelengths greater than 750 nm are infrared light.

They are not visible to human eyes, but we can feel them as heat on our skin.

B is wrong. It is UV light that causes skin cancer and sunburn.

C is wrong .Visible and UV light have shorter wavelengths.

D is wrong. Human eyes cannot see IR radiation

Digiron [165]3 years ago
5 0

Your're answer is.

(A) They take the form of heat.

Hope this helps you my friend and good luck on the quiz or test.

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Isotopes of the same element have a different number of ______​
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Answer:

atomic weight..................

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7. Which liquid caused the egg to shrink? *
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c.corn syrup

the egg shrinks due to osmosi.

3 0
3 years ago
Read 2 more answers
Help me with homework.
andrey2020 [161]

The chemical equation is said to be balanced if the number of atoms in the reactants and products is the same

<h3>Further explanation</h3>

Equation balanced ⇒ total number of atoms in reactants(on the left)= total number of atoms in products(on the right)

H₂+O₂---> H₂O

Reactants : H₂, O₂

Products : H₂O

not balanced

H₂O₂ ---> H₂O+O₂

Reactants : H₂O₂

Products : H₂O, O₂

not balanced

Na+O₂ ---> Na₂O

Reactants : Na, O₂

Products :  Na₂O

not balanced

N₂+H₂ ---> NH₃

Reactants : N₂, H₂

Products :  NH₃

not balanced

P₄+O₂---> P₄O₁₀

Reactants : P₄, O₂

Products :  P₄O₁₀

not balanced

Fe+H₂O ----> Fe₃O₄ + H₂

Reactants : Fe, H₂O

Products :  Fe₃O₄

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7 0
3 years ago
A 250-ml sample of na2so4 is reacted with an excess of bacl2. if 5.28 g baso4 is precipitated, what is the molarity of the na2so
Oksanka [162]
To get the molarity you need to follow this equation
                       moles of solute
Molarity (M = -----------------------
                        Liters of solution

But before you apply that equation you need to find the moles of solute and the liters of solution. Follow this equation

Na2SO4 + BaCl2 = BaSO4 + 2 NaCl

Solution

Moles of BaSO4 = 5.28 g 
                               ---------------
                                233.43 g / mol
                             =  0.0226  moles
Moles of NaSO4 = 0.0226 
                  0.0226 mole
Molarity = -----------------
                  0.250 L
              =  0.0905 mol / L

So the answer is 0.0905 mol / L
3 0
2 years ago
Brainliest to the best answer.
givi [52]

Answer:The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface.

Explanation:

4 0
2 years ago
Read 2 more answers
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