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
Aleks04 [339]
3 years ago
6

Whenever ___ energy is needed

Chemistry
1 answer:
vfiekz [6]3 years ago
5 0
Well...........thanks for posting anyway. 
You might be interested in
There are many, many stars in our Universe. In which of the following do all stars appear to be quite similar?
Ksenya-84 [330]
D. Age is the answer
6 0
3 years ago
What is Matter and give the examples​
Paha777 [63]

Answer:

Matter is a substance that has inertia and occupies physical space.

Matter is literately in <u>everything</u>

Explanation:

Examples of matter:

Your body

A home

The air

Things that are <u>not</u> matter are:

A light

Heat form fire

Sounds

There <u>not</u> matter because you <u>cant touch, smell or taste them</u>.

7 0
1 year ago
Read 2 more answers
On a warm summer day in Oslo, the temperature is 21 degree C and the relative humidity is 70%. What is the absolute humidity? Wh
lesya [120]

Explanation:

According to the psychrometric chart at dry bulb temperature of 21^{o}C and RH 70%, the absolute humidity = 0.011 kg/kg dry air

Formula to calculate humid volume is as follows.

       \nu_{H} m^{3}/kg dry air = \frac{22.41}{273}TK (\frac{1}{28.97} + \frac{1}{18.02}H)

                     = (2.83 \times 10^{-3} + 4.56 \times 10^{-3} H) T K

                     = (2.83 \times 10^{-3} + 4.56 \times 10^{-3} \times 0.011) \times 294

                       = 0.847 m^{3}/kg dry air

Hence, humid volume of air is 0.847 m^{3}/kg dry air.

Specific enthalpy of dry air  = specific heat capacity of dry air × dry bulb temperature

                    = 1.006 kJ/kg ^{o}C \times 21^{o}C

                    = 21.126 kJ/kg dry air

Hence, the specific enthalpy of the air is 21.126 kJ/kg dry air.

As per the psychrometric chart at given conditions wet bulb temperature = 17.5 ^{o}C

As per the psychrometric chart at given conditions dew point temperature = 15.5 ^{o}C

4 0
3 years ago
Water difference between glacier and geyser
Gekata [30.6K]
Glaciers are found in areas where the net accumulation of snow exceeds the melt, therefore they are usually found in areas of high elevation, cold temperatures, and high precipitation.

Geysers are found in areas of shallow crust with high heat flow, such as hot spots.
4 0
3 years ago
Read 2 more answers
Find the mistake<br> Cu(NO3)2(s) + CuO(s) → 2NO(g) + O3(g)
kvv77 [185]

there are 2 copper atoms on the left side of the arrow, but none on the other side. there are also 7 oxygen atoms on the left hand side, but only 5 on the right hand side of the arrow.
3 0
3 years ago
Other questions:
  • Which equation best expresses the relationship between pressure and volume for gas?
    8·2 answers
  • The<br>system brings<br>oxygen into the blood and releases carbon<br>dioxide from the body.​
    11·1 answer
  • What is the speed of a jet plane that flies 78500 km in 10.5 hours (in km/hr)?
    9·1 answer
  • Mg metal is placed in HCl and a gas is liberated. This is an example of a
    12·1 answer
  • Suggest a possible mechanism for the acid catalyzed reaction of a typical ketohexose to give 5-hydroxymethylfurfural.
    8·1 answer
  • 1) Compounds Y and Z both have the formula C9H18.
    8·1 answer
  • How many moles are in 4.35 X 1024 atoms of Iron (Fe)?
    7·1 answer
  • When hydrogen is fused into helium, energy is released from
    12·1 answer
  • Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()Na2
    7·1 answer
  • The molar mass of KCl is 74. 55 g/mol. If 8. 45 g KCl are dissolved in 0. 750 L of solution, what is the molarity of the solutio
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!