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
aev [14]
2 years ago
9

What are the two most recent fossils that have been found in New york?

Chemistry
2 answers:
omeli [17]2 years ago
7 0
The most recent is one found in petrified forest and it’s 220 million years old
fgiga [73]2 years ago
4 0

cie

Explanation:cioserra s ojs queengo o m me vengoe volo

You might be interested in
A block of chocolate is melting on a hot pan. What type of heat transfer is this? Describe the way heat is transferred between t
klio [65]

Answer:liquid= _________   than the next ________ is heat

Explanation:

8 0
2 years ago
Which begins as chemical energy and can be transformed into electricity?
Umnica [9.8K]
Sunlight i think thats the answer
8 0
3 years ago
2 points
erica [24]

9 grams of hydrogen gas (H2) will SC  Johnson need to react in order to make 1 bottle of Windex.

Explanation:

Balance equation for the formation of ammonia from H2 gas.

N2 + 3H2 ⇒ 2 NH_{3}

Given

mass of ammonia in 1 bottle of windex = 51 gram

atomic mass of ammonia 17.01 gram/mole

number of moles = \frac{mass}{atomic mass of 1 mole}

number of moles = \frac{51}{17.01}

                               = 3 moles of ammonia is formed.

in 1 bottle of windex there are 3 moles of ammonia 0r 51 grams of ammonia.

From the equation it can be found that:

3 moles of hydrogen reacted to form 2 moles of ammonia

so, x moles of hydrogen will react to form 3 moles of ammonia.

\frac{2}{3} = \frac{3}{x}

x = 4.5 moles of hydrogen will be required.

to convert moles into gram formula used:

mass = atomic mass x number of moles  (atomic mass of H2 is 2grams/mole)

        = 2 x 4.5

        = 9 grams of hydrogen.

7 0
2 years ago
Classify the following materials as solid, liquid, or gas at room temperature: milk, helium, granite, oxygen, steel, and gasolin
Sati [7]
Im not sure but milk is liquid, helium is gas, granite is solid, oxygen is gas, steel is solid, and gasiloine is liquid.
3 0
3 years ago
A device that does work in a circuit is called what ?
zavuch27 [327]
These are called resistors. 
7 0
2 years ago
Read 2 more answers
Other questions:
  • Determine whether each of these reactions occur through an S N 1 , S N 2 , E1, or E2 mechanism. A. A tertiary alkyl halide is tr
    14·1 answer
  • What process must happen before this process depicted below?
    5·2 answers
  • The movement of rocks and soil is an example of
    8·2 answers
  • What electron subshell is being filled for the rare earth series of elements on the periodic table? What electron subshell is be
    8·1 answer
  • Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold foil. Some of these alpha p
    14·1 answer
  • 28. How many formula units are found in 0.250 moles of potassium nitrate?
    9·1 answer
  • Which of the following is the correct Lewis dot diagram for Br found in LiBr.
    5·2 answers
  • Classify the molecules based on whether the molecule has a standard enthalpy of formation, AH;, equal to 0. Assume all
    11·1 answer
  • What would the mass number of sodium be? atomic number 11 number of protons 11 number of neutrons 12
    8·1 answer
  • What is the percent composition of N H S O in (NH4)2SO4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!