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SCORPION-xisa [38]
3 years ago
10

Which definition best describes the term activation energy?

Chemistry
1 answer:
dalvyx [7]3 years ago
4 0

Answer:

B

Explanation:

bshdiidididjdjjdididid

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Which statement is correct about the conclusions of historical events? A) Historical event conclusions can be tested using the s
BARSIC [14]

C is the correct answer I believe


4 0
3 years ago
Read 2 more answers
What type of reaction is this?
svet-max [94.6K]

Answer:

Decomposition

3 0
3 years ago
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Calculate the enthalpy for the following reaction. During the reaction, the temperature changes from 42.5 C to 37 C. The specifi
Dahasolnce [82]

Answer:

q = 0.810 Kj/mol

Its an endothermic reaction

Explanation:

Enthalpy can be evaluated by using following formula -

q = m * c* \delta T

where

q is the enthalpy or change in internal energy

m is the mass in kg

c is the specific heat

and \delta T is the change in temperature

Mass of HCl is equal to 36.46 g/mol

or

Mass of HCl is equal to 0.03646  Kg/mol

Substituting the given values in above equation, we get-

q = 0.03646 * 4.04 * (42.5 - 37)\\q = 0.03646 * 4.04 * 5.5 \\

q = 0.810 Kj/mol

Enthalpy is positive thus it is an endothermic reaction

4 0
4 years ago
Can you help me balance this​
Zepler [3.9K]

Balanced equation

Mg₃(PO₄)₂ + 2Al(NO₃)₃ → 3Mg(NO₃)₂ + 2AlPO₄

<h3>Further explanation</h3>

Given

Reaction

Mg3(PO4)2 + Al(NO3)3 → Mg(NO3)2 + AlPO4

Required

Balanced equation

Solution

Give a coefficient :

Mg₃(PO₄)₂ + aAl(NO₃)₃ → bMg(NO₃)₂ + cAlPO₄

Make an equation :

Mg, left = 3, right=b⇒b=3

P, left=2, right=c⇒c=2

Al, left=a, right=c⇒a=c⇒a=2

The reaction becomes :

Mg₃(PO₄)₂ + 2Al(NO₃)₃ → 3Mg(NO₃)₂ + 2AlPO₄

7 0
3 years ago
Science is a continually ongoing process with many cycles.<br> True<br> False
Lina20 [59]

Answer true

Explanation:becoz it's true

6 0
4 years ago
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