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
OlgaM077 [116]
3 years ago
6

True or False. Index Fossils are formed from organisms that were alive for short period of geologic time, are extinct, had hard

parts, and lived across wide geographic area.
Chemistry
2 answers:
NemiM [27]3 years ago
6 0

Answer:

Index fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment.

Explanation:

True

erik [133]3 years ago
3 0

Answer:  

Explanation:

You might be interested in
Sample X has a mass of 22.7 g and reacts with sample Y to form sample XY with a total mass of 86.9 g. What is the mass of sample
kolezko [41]

Answer:

\large \boxed{\text{64.2 g}}

Explanation:

                 X  +  Y ⟶ XY

mass:  22.7 g   x     86.9 g

According to the Law of Conservation of Mass, the mass of the product must equal the mass of the reactants.

\begin{array}{rcl}\text{22.7 g} + x & = & \text{86.9 g}\\x & = & \text{86.9 g} - \text{22.7 g}\\& = & \textbf{64.2 g}\\\end{array}\\\text{The mass of Y is $\large \boxed{\textbf{64.2 g}}$}

8 0
3 years ago
How many grams of lithium are in 6.02*10^21 atoms
valentinak56 [21]

the answer is 0.0693769. 6.02x10^21 x6.94/ 6.022x10^23 is the formua you would use.

7 0
4 years ago
Please help me answer this I will be very grateful if so :)
dimaraw [331]

The molecules in system #2 have a higher kinetic energy because they are at a higher temperature than molecules in system#1.

<h3>Heating of water molecules</h3>

Temperature is defined as a measure of the average kinetic energy of the molecules of a body. The higher the temperature of a body, the higher the kinetic energy of the molecules of the body.

In both systems, we have water molecules that have the same formula H2O. However, the molecules in system #2 have a higher kinetic energy because they are at a higher temperature than molecules in system#1.

Learn more about kinetic energy of molecules: brainly.com/question/2731193

8 0
3 years ago
The perfect glass of sweet tea is 15% sugar. Elena is making a one gallon container of sweet tea. How many cups of sugar are in
Arte-miy333 [17]

There are 2.4 cups of sugar in the gallon of sweet tea.

<h3>What is the conversion of fluid measurement?</h3>

The conversion of fluid measure takes a standard analysis where the assumed container of a particular fluid is related to another container.

For example, we have two containers here:

  • The glass cup
  • The gallon

We need to know how many glass cups that are present in a gallon. From standard conversion rates:

  • 1 gallon = 16 cups

However,

We learned that 1 cup contains 15% of sugar; Therefore, 16 cups will contain:

= 16 × 0.15

= 2.4 cups of sugar

Learn more about measurement conversion here:

brainly.com/question/777464

7 0
2 years ago
Why did geologists set fire to “the door to hell”
nydimaria [60]

Answer:

The Darvaza gas crater know as the "Door To Hell" is a natural gas crater. Geologists intenyionally set fire to it

Explanation:

Geologists intentionally set fire to it in order to prevent the spread of methane gas

3 0
3 years ago
Other questions:
  • Mass in mg<br> salt<br> sugar<br> chalk<br> sand<br> water
    8·1 answer
  • The process for the conversion of a liquid to a gas is called
    6·2 answers
  • Using the periodic table , choose the more reactive nonmetal. Br or As
    11·2 answers
  • Match the scientist with their scientific idea. Question 2 options: Substances combine or break apart to create new, different s
    5·1 answer
  • 1 example of o neutral
    9·1 answer
  • A chemical equilibrium between gaseous reactants and products is shown. N2(g) + 3H2(g) ⇌ 2NH3(g) How will the reaction be affect
    6·1 answer
  • ___MgCl2(s) +___ MiCO3(s)
    11·1 answer
  • Chemical formula of magnesium<br> oxide using Criss cross method​
    5·1 answer
  • How is the water in the swimming pool similar to earth's interior? How is it different?
    7·1 answer
  • Sound waves are ____ waves
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!