1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ANTONII [103]
3 years ago
10

A synthesis reaction that is nonspontaneous and has a negative value for its heat of reaction will not occur until some heat is

added
nonspontaneous exothermic re actions need enough activation energy to get them started.

A. T,T
B. T,F
C. F,T
D. F,F
E. T,T,CE
Chemistry
1 answer:
LenKa [72]3 years ago
5 0

Answer:

A) True/True

Explanation:

Non spontaneous exothermic reactions <u>need to reach the activation energy to get started</u> (like all non spontaneous reactions), usually this energy is given in the form of heat.  So you can say the second statement is True

The first one is also True, if you don't give some energy (heat) to a non spontaneous reaction it won't start. Never the less, <u>exothermic reaction's conversion of equilibrium is decreased when heat is addeed to the system. </u>

<u />

You might be interested in
1. If you have 5g of pennies how many dozen pennies do you have?
likoan [24]

Answer:

15.69 dozen

Explanation:

Mass of penny = 5 g

Dozens of penny =..?

Next, we shall convert 5 g to gross. This can be obtained as follow:

3824 g = 1000 gross

Therefore,

5 g = 5 g × 1000 gross / 3824 g

5 g = 1.3075 gross

Thus, 5 g is equivalent to 1.3075 gross.

Finally, we convert 1.3075 gross to dozen. This can be obtained as follow:

1 gross = 12 dozen

Therefore,

1.3075 gross = 1.3075 gross × 12 dozen / 1 gross

1.3075 gross = 15.69 dozen

Thus, 5 g of penny is equivalent to 15.69 dozen

4 0
4 years ago
If an acid/base dissociates completely in water what type of substance is it? Does this mean the acid/base is dangerous?
hram777 [196]

Answer:

1 strong acid

2 yes they are dangerous

Explanation:

Since nearly all of it is dissociated in water, it is called a strong acid.

2 yes Concentrated strong acids can cause severe and painful burns. The pain is due in part to the formation of a protein layer, which resists further penetration of the acid

3 0
4 years ago
A train travels 803.98 meters in 1 minute what is the trains average rate of speed
TEA [102]

Answer:

Approximately 13.4 meters per second (m/s)

Explanation:

We can divide the distance by 60 seconds to find the trains average rate of speed.

803.98 / 60 ≈ 13.4

Best of Luck!

7 0
3 years ago
??????????????? why ????????????????
stealth61 [152]

Answer:

because

Explanation:

4 0
3 years ago
Read 2 more answers
hich quantity describes how spread out a set of data is? O A. Standard deviation O B. Percent error O C. Line of best fit D. Mea
juin [17]

The answer to this is B.

6 0
4 years ago
Other questions:
  • The temperature at which a substance freezes is called its melting point. True or False
    6·1 answer
  • How many grams of lithium are needed to produce 45.0g of lithium nitride?
    7·1 answer
  • Each element consists of only one type of atom. <br> a. True<br> b. False
    10·1 answer
  • Which term refers to the formation of ions as a result of a chemical reaction?
    9·2 answers
  • Over an interval of 3.00 s the average rate of change of the concentration of C was measured to be 0.0840 M/s. What is the final
    12·1 answer
  • Hydrogen bonds are in the family of Van der Waals forces. They are weaker than ionic and covalent bonds but they cause interesti
    15·1 answer
  • Which represents the overall (net) reaction of this mechanism: step 1: H2O2 + I- → H2O + OI- step 2: H2O2 + OI- → H2O + O2 + I-
    14·1 answer
  • Define ionic bond and explain the formation of nacl and mgo
    6·1 answer
  • Photosynthesis is the reaction by which green plants convert water and carbon dioxide into glucose and oxygen using sunlight (ra
    14·1 answer
  • How many moles of oxygen are necessary to generate 28 moles of water, according to the following equation: 2H2+O2→2H2O
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!