Answer:
Explanation:
A limiting reactant in a chemical reaction is one which puts limits on amount of product produced out of the reaction. The process of chemical reaction is stopped when the limiting reactant is fully used up.
Example:
Suppose you have
5 gram of oxygen and 10 gram of hydrogen to make any chemical product say y
since
amount of oxygen is only 5 gram thus, when all of 5 gram of oxygen will be used up then no further reaction will take place even though amount of hydrogen is present to react.
Thus, we can say that
oxygen is limiting the production of product y.
oxygen is fully used until the reaction stops.
Thus, in this case oxygen is limiting reactant.
Based on above discussion
the correct option for this problem is
a the reactant that is used up
The temperature at thermal equilibrium : 16.1 °C
<h3>Further explanation</h3>
Q absorbed = Q released
Heat can be formulated :
Q = m.c.Δt
c= specific heat, J/g°C
Δt = temperature different, C°
m= mass, g
Q water=Q substance
Answer:
8 moles = 16 gm of H2 left over
Explanation:
The balanced equation is
2 H2 + O2 ===> 2 H2 O
20 g H2 = 20 g / 2 gm/mole = 10 moles of H2
32 g O2 = 32g / 32 g / mole = 1 mole O2
From the balanced equation, you can see each 2 moles of H2 requires 1 Mole of O2
you would need 20 moles of O 2 to react withe the 10 moles of H2
but you only have 1 mole of O2 so 8 moles of H2 will be left
Explanation:
An observation that can be counted is known as quantitative observation. On the other hand, an observation that does not contain any numerical data is known as non-quantitative observation.
Therefore, given observations are classified as follows.
(a) The Sun rises in the east - It is a non-quantitative observation as it cannot be measured.
(b) A person weighs one-sixth as much on the Moon as on Earth - It is a quantitative observation as it can be measured because we know the mass of moon. Hence, we can find out the weight of person.
(c) Ice floats on water - It is a non-quantitative observation as it cannot be measured.
(d) A hand pump cannot draw water from a well more than 34 ft deep _ It is a quantitative observation because it is measure that more than 34 ft deep water cannot be drawn by the pump.
The answer is B. It will grow towards the hole in the box because the plant will try and get as close to the sunlight as possible which is called phototropism.
