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
DochEvi [55]
3 years ago
7

Animals have internal stimuli or cues that help them survive. Which stimuli is external rather than internal?

Chemistry
1 answer:
dem82 [27]3 years ago
4 0
D bc people can feel how hot u are
You might be interested in
what volume of hydrogen gas is evolved from a reaction between 0.52 g of Na and water? This gas is collected at 20 C and 745mmHg
guapka [62]
The  volume of  hydrogen  gas  that evolved  is   calculated  as  follows
by  use  of   ideal  gas  equation

that  is  PV = nRT
P=745  mm hg
V= ?
R(gas  constant)= 62.36 L.mm hg/mol.k
T= 20 + 273 = 293 k
n=number  of  moles which is calculated as  follows
find the  moles  of Na  used
= 0.52/23=0.023  moles

write the reacting equation
2Na +2H2O =2NaOH +H2
by  use  of reacting  ratio  between  Na : H2  which  is  2:1  therefore  the mole  of H2 = 0.023/2 =0.0115  moles

by  making  the  volume  the   subject  of  the formula
v=nRT/P
V= (0.0115 x 62.36  x 293) / 745  = 0.283 L


6 0
3 years ago
Define Nuclear Fission and Fusion
ASHA 777 [7]
A nuclear reaction in which a heavy nuclear splits spontaneously or on impact with another particle with the release of energy- fission

A nuclear reaction in which atomic nucleus with the release of energy-fusion

The energy harnessed in nuclei is released in nuclear reaction. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus
6 0
3 years ago
What are some geographic features that could be found in the hydrosphere?
nadezda [96]

Lakes, oceans, glaciers, clouds, etc. It categorizes all forms of water on earth.

hydro = water

6 0
3 years ago
A sample of a gas occupies 6.00 liters at a temperature of 200 K. If the pressure remains constant and the temperature is raised
egoroff_w [7]

Answer:

18

Explanation:

4 0
3 years ago
What is the theory stating that earths lithosphere is made up of large plates that are in constant motion
Lena [83]
I believe your answer is Plate Tectonics! Hope that helps! :D
3 0
3 years ago
Other questions:
  • Carvone is a substance that occurs in two forms having different arrangements of the atoms but the same molecular formula (c10h1
    7·1 answer
  • A large area of flat land elevated high above sea level is called a a. syncline. b. plateau. c. canyon. d. fault
    5·2 answers
  • What are the products of photosynthesis
    10·2 answers
  • What type of reaction is : CaCo3+ HCl = CaCl2 + CO2 +H2O
    7·2 answers
  • What's your favorite color ?!
    12·2 answers
  • A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.
    11·1 answer
  • Osmosis is a type of diffusion
    11·2 answers
  • Question 12 (100 points)
    14·2 answers
  • Jolene wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change physically, not chemicall
    11·1 answer
  • Can bees really fly if so why
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!