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
maksim [4K]
3 years ago
13

PLEASE ANSWER

Chemistry
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

Answer is D

Explanation:

xrays would be far more efficient at detecting objects through solids.

You might be interested in
4. A sample of gas has a pressure of 700 mmHg and 30.0°C. Ar what temperature would the pressure be 600 mmHg if the volume remai
shtirl [24]

Answer:

T₂  = 259.84 K

T₂  = -13.31 °C

Explanation:

Given data:

Initial pressure = 700 mmHg

Initial temperature = 30.0°C (30+273.15 K = 303.15 K)

Final temperature = ?

Final pressure = 600 mmHg

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

700 mmHg /303.15 K  = 600 mmHg / T₂

T₂  = 600 mmHg × 303.15 K / 700 mmHg

T₂  =181890 mmHg.K /700 mmHg

T₂  = 259.84 K

Temperature in celsius

259.84 K - 273.15 = -13.31 °C

7 0
3 years ago
What is the best explanation for why a particle is striking point X?
const2013 [10]

Answer:

What is the best explanation for why a particle is striking point X? When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Explanation:

thank me later

8 0
3 years ago
Read 2 more answers
How many calories of heat are required to raise the temperature of 1.00kg of water from 10.2 degrees Celsius to 26.8 degrees Cel
Vika [28.1K]

Answer:

Explanation:

we know that specific heat is the amount of heat required to raise the  temperature of substance by one degree mathmeticaly

Q=mcΔT

ΔT=T2-T1

ΔT=26.8-10.2=16.6

C for water is 4.184

therefore

Q=1.00*4.184*16.6

Q=69.4 j

now we have to covert joule into calorie

1 calorie =4.2 j

x calorie=69.4 j/2

so 69.4 j =34.7 calorie thats why 34.7 calorie heat is required to raise the temperature of water from 10.2 to 26.8 degree celsius

6 0
3 years ago
Please help me with this
Sophie [7]

Answer:

5.0 38 84.0 749.7 528.0 729.0 738.9 739.0

7 0
2 years ago
Can someone please help me with this ASAP??
kipiarov [429]

1.00

Explanation:

the density of water is always 1

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following will dissolve most quickly? A. two sugar cubes. . B. a tablespoon of coarse sugar. . C. a tablespoon of t
    8·2 answers
  • 1. What is the mass of a solution that has a concentration of 37 g/L and a<br> volume of 600 mL?
    13·1 answer
  • If 7.17 g of CuNO3 is dissolved in water to make a 0.470 M solution, what is the volume of the solution?
    11·1 answer
  • A 30.7 mL, 1.66 M KMnO4 solution is mixed with 16.7 mL of 0.704 M KMnO4 solution. Calculate the concentration of the final solut
    15·1 answer
  • Compare the amount of carbon dioxide released in one year from burning coal to power 10, 65-watt incandescent bulbs with the amo
    7·1 answer
  • Which conclusion was drawn from the results of
    12·1 answer
  • Which feature forms as a result of conduction between magma and water?
    6·2 answers
  • Which of these is NOT a cation?
    14·1 answer
  • How many formula units are in 4.56 moles of LiCl?
    8·1 answer
  • Aeronautical researchers have developed three different processes to pack a parachute. They want to compare the different proces
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!