PLEASE ANSWER

Order the types of electromagnetic waves from most to least energy.

Radio waves <  Micro waves < Infrared rays < Visible light < Ultraviolet rays < X-rays < Gamma rays  

Explanation:

Electromagnetic radiation gives an extensive range of regularities and wavelengths. This distinct range is known as the electromagnetic spectrum. The Electromagnetic spectrum is commonly classified into 7 prominent regions, in the order of increasing wavelength and decreasing energy and particular frequency. The common divisions are radio waves() < microwaves() < infrared rays (IR)() <visible light (VIBGYOR) () < ultraviolet rays (UV)() < X-rays() < Gamma rays().

The visible light is the only region between infrared rays and ultraviolet rays which can be seen by our eye. It makes up only small part of the radiation. The visible light consists of 7 prominent colors namely Violet(least wavelength, high frequency) to Red(more wavelength, low frequency) intermediate colors are Indigo,Blue,Green,Yellow,Orange.

The wavelengths of these colors range from 400 - 700 nm

when 25.0 ml of 0.700 mol/l naoh was mixed in a calorimeter with 25.0 ml of 0.700 mol/l hcl, both initially at 20.0 °c, the temperature increased to 22.1 °c. the heat capacity of the calorimeter is 279 j/°c.

the equation for the reaction is:

naoh + hcl → nacl + h₂o

moles of hcl = 0.0250 l hcl ×

0.700

mol hcl

1 l hcl = 0.0175 mol hcl

volume of solution = (25.0 + 25.0) ml = 50.0 ml

mass of solution = 50.0 ml soln ×

1.00

ml soln

= 50.0 g soln

δt=t2-t1

= (22.1 – 20.0) °c = 2.1 °c

the heats involved are

heat from neutralization + heat to warm solution + heat to warm calorimeter = 0

q1+q2+q3=0

nδh+mcδt+cδt=0

0.0175 mol ×

δh

+ 50.0 g × 4.184 j·g⁻¹°c⁻¹ × 2.1 °c + 279 j°c⁻¹ × 2.1 °c = 0

0.0175 mol ×

δh

+ 439.32 j + 585.9 j = 0

0.0175 mol ×

δh

= -1025.22 j

δh=1025.22j0.0175 mol= -58 600 j/mol = -58.6 kj/mol

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.