Answer:
(a).
(b)
(c). The rate increases because kinetic energy of reactant molecules increases.
Answer:
Explanation: A children's liquid medicine contains 100 mg of the active ingredient in 5 mL . If a child should receive 150 mg of the active ingredient, how many milliliters
<span>The solubility constant at 25°C is [1]
Ksp = 5.02×10^–6 </span>Let s be the molar solubility of Ca(OH)₂.<span>[OH⁻] = 10^(pH - 14)
hence
Ksp = s ∙ (10^(pH - 14))² = s ∙ 10^(2∙pH - 28)
=>
s = Ksp / 10^(2∙pH - 28) = Ksp ∙ 10^(28 - 2∙pH)
at pH=5
s = 5.02×10^–6 ∙ 10^(28 - 2∙5) = 5.02×10^–6 ∙ 10^(18) = 5.02×10^12 mol/L
at pH=7
s = 5.02×10^–6 ∙ 10^(28 - 2∙7) = 5.02×10^–6 ∙ 10^(14) = 5.02×10^8 mol/L
at pH=8
s = 5.02×10^–6 ∙ 10^(28 - 2∙7) = 5.02×10^–6 ∙ 10^(12) = 5.02×10^6 mol/L </span>
Answer:
radio waves
Explanation:
the answer is simple, radio waves. it is radio waves because when you look at the diagram the waves below Radio are very long. if you look at the waves under gamma ray, they are very short. radio is the longest wave while gamma is the shortest. if you are still confused it also says longer wavelength and low frequency( meaning it is safe) right under the wavelength.
Answer:
answer is C
Explanation:
encourage the release of carbon dioxide from the stems