The substance with pH are basic, so correct answer is <span>C) more OH- ions than H30+ ions.</span>
Answer:
Speed
Explanation:
Aliyah must have been trying to find her speed.
The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,
speed = with a unit of m/s.
<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>
Answer:
a. C5H12 + O2 → CO2 + H2O
c) Mg + O2 → MgO
Explanation:
Una reacción de combustión es definida como una reacción en la que un elemento o compuesto reacciona con oxígeno para producir un óxido y liberar calor.
Cuando un hidrocarburo (De fórmula general CₓHₙ) entra en combustión, dióxido de carbono y agua son producidos.
Así, las reacciones que corresponden a combustión son:
a. C5H12 + O2 → CO2 + H2O
<em>Se produce dióxido de carbono y agua</em>
c) Mg + O2 → MgO
<em>Se produce óxido de magnesio y se libera calor.</em>
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Answer:
it's A
Explanation:
The given element is, fluorine is a non-metal with symbol (F). It is a gas and belongs to the group 17 and period 2.
The atomic number of fluorine = 9
The number of electrons = 9
Answer:
PE = 8918 J
Explanation:
Formula for potential energy here is;
PE = mgh
Where;
m is mass
g is acceleration due to gravity
h is height
We are given;
m = 35 kg
h = 26 m
Thus;
PE = 35 × 9.8 × 26
PE = 8918 J