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
goldfiish [28.3K]
3 years ago
12

Which statements are true about Figure I and Figure II below? (Check all that apply)

Chemistry
1 answer:
Scilla [17]3 years ago
5 0

Both figures are mixtures,

Figure II is a heterogenous mixture

Figure I is a homogenous mixture

You might be interested in
1. Approximately how long does the
d1i1m1o1n [39]

Answer:

i think its a month

3 0
3 years ago
Read 2 more answers
Question 3
hammer [34]

Answer:

in the excited state

Explanation:

Because in excited state an atom has more energy

5 0
3 years ago
Read 2 more answers
Which of these is a characteristic of science?
Gnoma [55]

Answer:

What are the characteristics of science? Objectivity: Scientific knowledge is objective. Verifiability: Science rests upon sense data, i.e., data gathered through our senses—eye, ear, nose, tongue and touch. Ethical Neutrality: Science is ethically neutral. Systematic Exploration.

Explanation:

there are no options but I search and this is what I got.

can I have brainliest

6 0
3 years ago
A certain compound has the percent composition (by mass) 85.63% C and 14.37% H. The molar mass of the compound is 42.0 g/mol. Ca
AlekseyPX

Answer:

The molecular formula is C3H6

Explanation:

Step 1: Data given

Suppose the compound has a mass of 100 grams

The compound contains:

85.63 % C = 85.63 grams C

14.37 % H = 14.37 grams H

Molar mass C = 12.01 g/mol

Molar mass H = 1.01 g/mol

Step 2: Calculate moles

Moles = grams / molar mass

Moles C = 85.63 grams / 12.01 g/mol

Moles C = 7.130 moles

Moles H = 14.37 grams / 1.01 g/mol

Moles H = 14.2 moles

Step 3: Calculate the mol ratio

We divide by the smallest amount of moles

C: 7.130 moles / 7.130 moles = 1

H = 14.2 moles / 7.130 moles = 2

The empirical formula is CH2

The molar mass of CH2 = 14 g/mol

Step 4: Calculate molecular formula

We have to multiply the empirical formula by n

n = 42 / 14 = 3

n*(CH2) = C3H6

The molecular formula is C3H6

8 0
3 years ago
The volume of a carbon atom is 1.9 x 10–30 m3. What is the radius of the atom in picometers? The volume of a sphere is (4/3)(pi)
skelet666 [1.2K]

Volume of sphere = \frac{4}{3}\pi r^{3}

where, \pi = 3.14

r = radius of sphere

Put the given value of volume in above formula i.e. (1.9\times 10^{-30}m^{3})

Thus,

1.9\times 10^{-30}m^{3} = \frac{4}{3}\3.14 r^{3}

1.9\times 10^{-30}m^{3} = 4.1867 r^{3}

r^{3} = \frac{1.9\times 10^{-30}m^{3}}{4.1867}

r^{3} = 0.453\times 10^{-30}m^{3}

r = \sqrt[3]{0.453\times 10^{-30}m^{3}}

= 0.768\times 10^{-10}m

=  7.68\times 10^{-12}m

=  7.68 picometers

Thus, radius of the carbon atom is 7.68 picometers








6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is hydrochloric acid?
    5·1 answer
  • Where is energy stored in living sytems
    7·1 answer
  • If 58.27 g Ca react with 92.3 g HBr according to the reaction below, how many grams of hydrogen gas will be produced?
    13·1 answer
  • Solids are usually more dense than:
    9·2 answers
  • How many millimeters are there in 5.12E5 kilometers?
    10·1 answer
  • How does radiation differ from convection? (104 points)
    6·1 answer
  • Calculate the number of joules needed to change the temperature of 40.0 g of water from 33.0 degree c to 43.0 degree c
    7·1 answer
  • How many grams of sodium hydroxide are needed to completely react with 50.0 grams of H2SO4?
    7·2 answers
  • Two carbon atoms (Group 14) bond with two hydrogen atoms (Group 1) to form acetylene (C2H2). How would each carbon atom in acety
    11·2 answers
  • Select the correct image.<br> Which body part is vestigial in humans?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!