Chemical properties of insecticides

Answers

  • Réponse publiée par: reyquicoy4321

    unsaturated:

    hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms

    saturated:

    contain only single bonds between carbon atoms

    Explanation:

  • Réponse publiée par: meteor13

    (C) Hydrogen bonding.

    ▪ Hydrogen bond causes the attraction between water molecules.

    ▪ Inner molecules are attracted evenly from alld irections. But surface molecules have unbalanced force caused by inner pulling. This is surface tension.

    ▪ Thus causes the net upward force in upper layer of water. This helps striders to walk on water.

  • Réponse publiée par: cyrishlayno

    Good Day

    Compound - is a combination of two or more elements which are chemically bonded either by ionic bond or covalent bond. The atoms or elements composing the compound have a fixed proportion. The elements or atoms cannot be separated by physical means.

    example of compound:

    water (H2O)  composed of 2 hydrogen and 1 oxygen. Cannot be separated by filtration or evaporation.

    Mixture -  a combination of two or more substances or compound that are not chemically joined or bonded. Mixture doesn't have a fixed proportion of the substance being mixed. The substances can be separated by physical means.

    Example of mixture:

    water (H2O) with sand. You can separate water from sand by filtration and evaporation which is a physical means of separating mixtures.

    Hope it helps...=)

  • Réponse publiée par: RoseTheShadowHunter

    Hello!

    A 2.0 g (approximately 0.045 mole) sample of dry ice (solid carbon dioxide is placed in an evacuated 3.5 L vessel at 30 C. Compute for the pressure inside the vessel after all the dry ice has been converted to carbon dioxide gas. (R=0.0821 L atm/mol.K)

    We have the following data:

    n (number of mol) = 0.045 mol

    V (volume) = 3.5 L

    T (temperature) = 30 ºC (in Kelvin)

    TK = TC + 273.15 → TK = 30 + 273.15 → TK = 303.15

    T (temperature) = 303.15 K

    P (pressure) = ? (in atm)

    R (gas constant) = 0.0821 atm.L / mol.K

    We apply the data above to the Clapeyron equation (gas equation), let's see:

    P*V = n*R*T

    P*3.5 = 0.045*0.0821*303.15

    3.5\:P = 1.119987675

    P = \dfrac{1.119987675}{3.5}

    P = 0.319996478...

    \boxed{\boxed{P \approx 0.32\:atm}}\end{array}}\qquad\checkmark

    The pressure inside the vessel is approximately 0.32 atm

    ________________________________

    I Hope this helps, greetings ... Dexteright02! =)

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Chemical properties of insecticides...