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
Sergio039 [100]
3 years ago
12

How many significant digits are in 2804

Chemistry
1 answer:
docker41 [41]3 years ago
4 0

Answer:

4 significant digits

Explanation:

Zeroes placed between other digits are always significant

You might be interested in
The following question appears on a quiz: ""You fill a tank with gas at 60°C to 100 kPa and seal it. You decrease the temperatu
dusya [7]

Answer: The final pressure will decrease ad the value is 85 kPa

Explanation:

To calculate the final pressure of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=100kPa\\T_1=60^0C=(60+273)K=333K\\P_2=?\\T_2=10^0C=(10+273)K=283K

Putting values in above equation, we get:

\frac{100kPa}{333K}=\frac{P_2}{283K}\\\\P_2=85kPa

Hence, the final pressure will decrease ad the value is 85 kPa

8 0
3 years ago
In fall, leaves may change from green to yellow or red. Explain in your own words what is happening inside the leaf with regard
natima [27]

Answer:

The pigment that causes leaves to be green is chlorophyll. ... As chlorophyll goes away, other pigments start to show their colors. This is why leaves turn yellow or red in fall. In fall, plants break down and reabsorb chlorophyll, letting the colors of other pigments show through.

3 0
2 years ago
If you only wanted to increase the particle motion of a gas without increasing any of its other properties, which would the most
andrey2020 [161]

Answer:

c

Explanation:

5 0
2 years ago
Do you think these fish are an example of natural selection among two populations of the same species
pshichka [43]
I don’t see any fish or anything
3 0
3 years ago
URGENT<br> What is the total volume of a lead can if it has a mass of 800g.
Sonja [21]

Answer:

750

Explanation:

5 0
3 years ago
Other questions:
  • What is always true of a weak acid ?
    9·2 answers
  • The use of high-pressure chambers to control disease processes is known as
    11·1 answer
  • How many moles of MgS2O3 are in 223 g of the compound
    8·2 answers
  • Radioactive decay is likely to occur when ... radioactive decay is likely to occur when ... protons break into neutrons and elec
    15·2 answers
  • How many electrons would the single cation of Rb have? *
    5·1 answer
  • Explain why space junk is a hazard to an astronats or spacecraft
    6·1 answer
  • Which sample would have the same number of molecules as 11.2L of He (g) at 273K and 202kPa?
    12·1 answer
  • What is the concentration of chloride in a solution made with 0.808 grams of CaCl2 and 250.0 ml of water.?
    15·1 answer
  • How are carbon-based molecules suited for sustaining life?
    9·1 answer
  • Does this seem correct for a chemical equation explaining fireworks.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!