Answer:
the purpose of an experimental group are:
- to enable the experimental study of one variable at a time
- to check a different result
Answer : Synthetic polymer production is directly not dependent on the climatic effects; but in the floods if the rubber plants are harmed or the production is hampered or by limited availability of rubber plants due to floods can deeply effect the synthetic polymer manufacturing industry which are dependent on natural rubber plants. So, indirectly it may hamper the production of synthetic polymers.
Answer:
i think i deserve brainliest.
Explanation:
3 reasons why i think i deserve brainliest.
number 1 im telling you that there is no images so you dont make a fool out of yourself anymore
number 2 i am spelling most things correctly .
number 3 i need brainliest to rank up
Answer:
109.09°C
Explanation:
Given that:
the capacity of the cooling car system = 5.6 gal
volume of solute = volume of the water; since a 50/50 blend of engine coolant and water (by volume) is used.
∴ 
Afterwards, the mass of the solute and the mass of the water can be determined as shown below:
mass of solute = 
On the other hand; the mass of water = 
Molarity = 
= 
= 17.757 m
≅ 17.76 m
∴ the boiling point of the solution is calculated using the boiling‑point elevation constant for water and the Molarity.
where,
= 0.512 °C/m
= 100°C + 17.56 × 0.512
= 109.09 °C
Answer:
A
Explanation:
The correct answer would be that <u>the powdered magnesium reacts faster because it has a greater surface area</u>.
<em>The rate of reaction is defined as the rate of disappearance of the reactants in a reaction or the rate of conversion of appearance of products during a reaction. </em>
The rate of reaction is dependent on several factors such as the concentration of the reactants, temperature of the reaction, nature of reactants, and the presence or absence of catalysts during the reaction.
As far as the nature of reactants is concerned, the surface area of reactants comes into play. <em>Reactants with higher surface areas react faster than reactants with lesser surface areas</em>. Hence, powdery reactants react faster than solid reactants because the latter has a higher surface area than the former.
The correct option is A.
