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
Setler79 [48]
3 years ago
9

Kepler’s investigations of the movement of the planets explained which of the following?

Chemistry
1 answer:
morpeh [17]3 years ago
8 0

Answer:

The earth‘s orbit

Explanation:

You might be interested in
Does Charles’s law hold when the gas becomes a liquid?
Mrac [35]

Answer:

no

Explanation:

7 0
3 years ago
Describe the results of a physical change and list<br> three examples of physical change.
Alex Ar [27]

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

Ex: cutting a paper, gaining weight, cutting hair

8 0
3 years ago
Temperature in degrees Fahrenheit can be converted to Celsius by first subtracting 32, then dividing by 1.8. What is the Celsius
kap26 [50]

Answer:

31.1°C

Explanation:

Given parameters:

  Temperature = 88°F

The formula of the to convert is:

         T°F = T°C - 32  / 1.8  = \frac{TC - 32}{1.8}

Now input the parameters and solve;

       T°F =\frac{ 88  -32}{1.8}

      T°F = 31.1°C

7 0
2 years ago
Read 2 more answers
Out of 500 silicon atoms: 460 are si-28, which has a mass of 27.98 amu 25 are si-29, which has a mass of 28.98 amu and 15 are si
liberstina [14]

Answer;

=28.09 amu

Explanation;

In this problem, they did not give us the percentages. However, since we know the number of atoms, we can easily calculate the percentages. For example:  

(460 X 100)/500 = 92%  

If we do this for all three isotopes,

(460 × 25)/500 = 5 %

(460 × 15) /500 = 3%

-We get 92%, 5%, and 3%. (We'll assume these are absolute numbers for determining our significant figures).

Now the problem is just like the previous one. First convert the percentages into decimals. Then multiply those decimals by the masses and add. Here's the solution:  

= (0.92) X (27.98 amu) + (0.05) X (28.98 amu) + (0.03) X (29.97 amu)

= 25.74 amu  +  1.449 amu  + 0.8991 amu

= 28.09 amu

6 0
3 years ago
Read 2 more answers
You can be electrocuted if you try to use water to put out a class_ fire ?
olganol [36]
I think class C. fire
4 0
3 years ago
Other questions:
  • Track runner will all cover the same distance. The winner will take
    6·2 answers
  • How many moles of magnesium ions are present in 283.8 mL of<br> 6.74 M Mg3(PO4)2?
    14·1 answer
  • You heat a piece of iron from 200 to 400 K. What happens to the atoms’ energy of random motion?
    13·1 answer
  • The nucleus of the atom is held together by the attraction of the positively charged protons and the negatively charged electron
    14·1 answer
  • Define and describe four properties of elements that display periodicity (show a trend) on the periodic table.
    14·1 answer
  • Will give brainliest.
    6·2 answers
  • Analyze the following blood splatter pictures to determine the general direction, origin, and impact
    8·1 answer
  • Converts chemical energy into mechanical energy
    8·1 answer
  • 02. Two great pe birds are morati Both birth have a ne
    10·2 answers
  • 2. What is the temperature (°C) of 1.50 moles of gas stored in a 10.0 L container at 1558 mm
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!