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
Simora [160]
3 years ago
7

1. A fossil is the remains or traces of organisms that lived in the past.

Chemistry
1 answer:
algol133 years ago
4 0

Answer:

Is this from edge?

if so which lesson is it from and is this an assignment or a quiz?

I think the answer is C (Much of the evidence for evolution comes from fossils.)

You might be interested in
The second atomic structure YES <br> No
gizmo_the_mogwai [7]

Answer

The second part of the theory says all atoms of a given element are identical in mass and properties. The third part says compounds are combinations of two or more different types of atoms. The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.

Explanation:

4 0
3 years ago
weather balloon is filled with helium to a volume of 340 L at 30 ∘C and 751 mmHg . The balloon ascends to an altitude where the
valentinak56 [21]

Answer: Thus the volume of the balloon at this altitude is 419 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 751 mm Hg

P_2 = final pressure of gas = 495 mm Hg

V_1 = initial volume of gas = 340 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 30^oC=273+30=303K

T_2 = final temperature of gas = -27^oC=273-27=246K

Now put all the given values in the above equation, we get:

\frac{751\times 340}{303}=\frac{495\times V_2}{246}

V_2=419L

Thus the volume of the balloon at this altitude is 419 L

8 0
3 years ago
What physical properties are important for the materials used to make mountain bikes?
Nikitich [7]

Answer:

density, yield strength, elasticity, Ductility, toughness, fatigue limit and corrosion resistance

7 0
2 years ago
The diagram shows an electric generator connected to a lightbulb. Not all of
BaLLatris [955]

Answer:

The lightbulb transforms it into thermal energy.

Explanation:

5 0
3 years ago
Consider chemical reactions between main group metals and non-metals. Based on known bonding patters, which of the following com
Fittoniya [83]

Answer:

You didn't list the compounds it gave you so i cant cross check them to see it they are ionic bonds( which is  the chemical bonding is formed between metal and nonmetal)

if you reply with the compounds it list I will be happy to check for you

4 0
2 years ago
Other questions:
  • Chemical formula for copper gluconate I have 1.4g of Copper gluconate. There is .2g of copper within the copper gluconate. Deter
    13·1 answer
  • A synthesis reaction takes place when carbon monoxide (CO) and hydrogen gas (H2) react to form methanol (CH3OH). How many grams
    7·1 answer
  • MgCl2(at)+Br2(l)=MgBr2(at)+Cl2(g)<br><br> how do you write in a word equation
    12·1 answer
  • In Universe L , recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, qua
    13·1 answer
  • What mass of sodium bicarbonate do you start with
    10·1 answer
  • How do I solve this?
    12·1 answer
  • What is the gram formula mass of Li 2 SO 4 ? Li2 + S + O4 = 13.88 + 32.06 + 63.996 = 109.94 molar mass of Li2SO4
    5·1 answer
  • Which of the following is TRUE about a physical change to a substance?
    5·1 answer
  • A solution is 12.5% Na3PO, by mass. How many grams of Na3PO4
    12·1 answer
  • Jose times how long sugar takes to dissolve in warm water. he conducts four trials of his experiment. what should he conclude fr
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!