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
WARRIOR [948]
3 years ago
11

Energy is conserved in chemical reactions. It is neither created nor_____

Chemistry
1 answer:
aivan3 [116]3 years ago
6 0

Answer:

destroyed, from, endothermic

Explanation:

Energy is conserved in chemical reactions. It is neither created nor destroyed but can be transferred from one form to another.

An exothermic reaction transfers energy from the reacting substance to the surroundings. The body of the container feels warm. An exothermic reaction has a negative value of enthalpy.

An endothermic reaction transfers energy from the surroundings to the reacting substance. The body of the container feels cold. In an endothermic reaction, enthalpy is positive.

You might be interested in
Which formula is a molecular compound?<br><br> H2O2<br> CaO<br> MgS<br> NaCl
Alborosie

Answer:

H2O2

Explanation:

8 0
3 years ago
Read 2 more answers
The hot dogs you ate at the barbecue last week were 75% fat-free by weight, had 275 calories, and weighed 110 g. a) What percent
vovangra [49]

Answer:

a) 25%

b) 27.5 g

c) 90%

Explanation:

a) 75% fat-free by weight means 25% of the weight is made by fat.

b) 110 g ___ 100%

      x    ___ 25%

          x = 27.5g

Each hot dog has 27.5g of fat.

c) 9 cal ___ 1 g fat

      y    ___ 27.5 g fat

          y = 247.5 cal

275 cal ___ 100%

247.5 cal ___ z

     z = 90%

90 % of the calories come from fat.

6 0
3 years ago
When bonds are (broken/formed) there is a positive energy change.
krek1111 [17]

Answer: Hello i am confused are you asking a question?

Explanation:

3 0
3 years ago
Read 2 more answers
If a gas occupies a volume of 6.6 L at 16.0 °C, at what temperature, in °C, will it occupy a volume of 8.9 L if the pressure rem
Pachacha [2.7K]

Answer:

ok

Explanation:

5 0
3 years ago
If an object that stands 3 centimeters high is placed 12 centimeters in front of a plane mirror, how far from the mirror is the
ryzh [129]

Answer:

the mirror is 12 cm away from the image

Explanation:

; the image will be virtual and it will form at 12 cm distance behind the mirror.

7 0
3 years ago
Other questions:
  • Describe the day of June 21 at the North Pole in terms of daylight and darkness <br> ( science )
    15·1 answer
  • pleeeaaaseeeee answer asappppppppp!!!!!!!!!!! Explain the processes of evaporation and condensation using the image above
    6·2 answers
  • 2000 km/sec. Convert that to<br> m/sec.
    15·1 answer
  • 1. Separation of amino acids by ion-exchange Chromatography. Mixtures of amino acids can be analyzed by first separating the mix
    10·1 answer
  • Convert 5.00 mm to centimeters (cm).<br> 1 cm = 10 mm<br> (please show work) ASAP
    15·1 answer
  • True or False. Isotopes have different chemical properties. Explain why?
    6·1 answer
  • Can someone answer 2 for me please?
    8·2 answers
  • How many Joules are present in 7401 kJ?
    5·1 answer
  • Forming ionic compounds:
    12·1 answer
  • Which particle has a mass of 1.67 x 10-24 g and a charge of zero? A B electron proton neutron​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!