Answer:
Crater size is related to the mass and velocity of the impacting body. Mass and velocity can be combined to find the kinetic energy of an impactor. ... This fundamental physical relationship allows an estimate of impactor mass to be made from crater diameter.
Explanation:
What kind of reaction is 2H202 → 2H20 + O2?
O A. Decomposition
O B. Single-replacement
C. Double-replacement
O D. Synthesis
Answer:
this reaction is so the answer should be A
Gas in a balloon occupies 3.3 liters. What volume will it occupy if the pressure is changed from 100 kPa to 90.0 kPa, if the temperature is held constant?
Answer:
3.7 L
Explanation:
Initial volume (V₁) = 3.3 L
Initial pressure (P₁) = 100 KPa
Final pressure (P₂) = 90 KPa
Final volume (V₂) =?
The final volume of the gas can be obtained by using the Boyle's law equation as follow:
P₁V₁ = P₂V₂
100 × 3.3 = 90 × V₂
330 = 90 × V₂
Divide both side by 90
V₂ = 330 / 90
V₂ = 3.7 L
Thus, the final volume of the gas is 3.7 L
Pls help fast, I will give brainliest!
Answer:
c
Explanation:
28g of aluminum reacts with 45g oxygen
1) complete balanced equation?
2) what is the limiting reactant?
3) how many grams of product could be formed?
4) how many grams of excess would you predict?
5) if you actually measured 50g of product, what is the percent yield?
Answer:
answer below:
Explanation:
1) 4 Al + 3 O2 --> 2Al2O3.
2) Al mol= 28/27 = 1.037mol
O mol= 45/16 = 2.812mol
Al : O
4 : 2
x : 2.812
cross multiply
4 x 2.812/2 = 5.624 mol of Al
Al is limiting reactant
3) 28/5.246 = 5.34product can be formed (not that much sure)
4) 45/ 0.5185 = 86.79
86.79 - 5.34 = 81.45g
5) 50 / 81.45 x 100 = 61.39% ( i guess)
i hope this hleps you
The sound of a trumpet ECHOES off a nearby mountain. This is which type of wave interaction?
Answer:
reflection
Explanation:
wave reflection is when a sound bounces off something it cannot go through, like echoing
What is the lanthanide with least mass, periodic table?
Answer:
Europium/Eu ( not really sure )
The lanthanide element with the least mass is Lutetium (Lu)
Lutetium (Lu) is a member of the lanthanide series, which is a group of 15 elements located in the f-block of the periodic table. The lanthanide series starts with the element Lanthanum (La) and ends with Lutetium (Lu). Lutetium is the heaviest and most dense element in the lanthanide series. Lutetium has an atomic number of 71, indicating that it has 71 protons in its nucleus. It has a relatively high atomic mass of approximately 174.97 atomic mass units (u) according to the periodic table.
Hence, lutetium is the lanthanide element with the least mass.
Learn more about lanthanide elements here:
https://brainly.com/question/28305751
#SPJ 6
An organism from the past that is related to all the organisms in the group is called?
Answer:
phylogenic trees/phylogeny
Explanation:
the evolutionary history and relationship of an organism or group of organisms is called its phylogeny
What element is in group 4 and period 3