Answer:
The correct answer is a. mixing a heat killed pathogenic strain of bacteria with a living non pathogenic strain can convert some of the living cells into the pathogenic form.
Explanation:
Griffith proved that DNA is the genetic material in some organism.To do this he described the process of transformation in which the heat killed pathogenic bacteria when mixed with a non pathogenic bacteria can convert the non pathogenic strain into pathogenic one. This principle is called transformation.
The transformation of non pathogenic strain into pathogenic one occur due to the uptake of DNA of the heat killed pathogenic bacteria by the non pathogenic strain.
D. Electronegativity and first ionization energy both increase as you
move up the periodic table.
Answer:
Міоррокоңшқкқгңоіиіиліщәөәщш3о3тігұк88yourhrh77
Answer:
585 kcal
.
Explanation:
- From the balanced equation:
<em>2Cl₂(g) + 7O₂(g) + 130 kcal → 2Cl₂O₇.</em>
130 kcal are needed to produce 2 mol of Cl₂O₇.
<em><u>Using cross multiplication:</u></em>
130 kcal are needed to produce → 2 mol of Cl₂O₇.
??? kcal are needed to produce → 9 mol of Cl₂O₇.
<em>∴ The energy required to produce 9.00 mol of Cl₂O₇ </em>= (130 kcal)(9 mol)/(2 mol) = <em>585 kcal.</em>