Explanation:
solid: table, biscuit
liquid: water, urine
gas: oxygen, carbon dioxide
Answer:
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Explanation:
simpler definition: It's just a thing that you're willing to define before your experiment begins. You're predicting what'll happen, or what you'll earn through your experiment.
Let's say that you're doing an experiment based on using fertilizer on your plant. Your hypothesis can end up like this, "If I add fertilizer to my garden, then my plants will grow faster."
Please correct me if I'm wrong.
Answer:
combustion or/and oxidation
Explanation:
Answer:
a) is correct.......,.....
339 grams of CLF3 is formed when F2 is in excess and 130 grams of CL2 reacts.
Explanation:
The balanced chemical reaction for the formation of ClF3 is given by:
+ 3 ⇒ 2 Cl
the mass of Cl2 is given 130 grams
From the equation it is found that 2 moles of chloride reacts to form 2 moles of ClF3.
calculating the number of moles of chlorine by the formula:
Number of moles = mass of the substance ÷ atomic mass of one mole of the substance
n = 130 ÷ 35.45
= 3.6671 moles
So, applying stoichiometry
2 moles of Cl2 formed 2 moles of ClF3
3.6671 moles of Cl2 will form x moles of ClF3
2 ÷ 2 = x ÷ 3.6671
x = 3.6671 moles of ClF3
now from the formula of number of moles
weight is calculated as n × mass of the gas
3.6671 × 92.448
= 339.01 grams of ClF3 is formed.