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
Nadya [2.5K]
3 years ago
12

astronauts brought back 500 lb rock samples from the moon. how many kilograms did they bring back (1 kg = 2.20 lbs)

Chemistry
2 answers:
Mariana [72]3 years ago
6 0
500÷2.20=227.2727273kg
tigry1 [53]3 years ago
4 0
Astronauts brought back 500 lb of rock samples from the moon. How many kilograms did they bring back? (1 kg = 2.20 lb)

A. 500 kg

B. 1,100 kg

C. 498 kg

D. 227 kg


I believe it is D.
You might be interested in
How does Elnora feel about her future? A) She takes one day at a time. B) She is apprehensive and anxious. C) She is optimistic
Georgia [21]

Answer:

D) she is confident and has already made plans

4 0
3 years ago
Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels? C, K, Ca, R
tatyana61 [14]

Answer:

i believe its d

Explanation:

3 0
3 years ago
Read 2 more answers
In two or more complete sentences, explain how to balance the combustion equation: ___C5H12 + ___O2 ⟶ ___CO2 + ___H2O
egoroff_w [7]

Answer:

First, place no. 5 in front of the CO2 in order to balance the carbon atoms. Next, place no. 6 in front of H2O to balance the hydrogen atoms. Lastly place no. 8 in front of the O2 so that there are 16 oxygen atoms on both sides of the reaction.

7 0
3 years ago
If a bonding pair of electrons is unequally shared between two atoms, the bond is
joja [24]
The answer is D. And if it is equally shared it is nonpolar covalent bond
4 0
4 years ago
Read 2 more answers
Attached are two chemistry questions I need help with. thank you to whoever helps me out
ivann1987 [24]
13.6 
a) yes Pb is more reactive  that Ag, Pb before Ag
b) no, Cu after H
c) yes, Cl2 is more active than I2
4) yes, Mg is more active

13.7 (as I think)
Al ³⁺  more active than Zn²⁺, Mn can react with  Zn²⁺, but not with Al ³⁺ , because Mn after Al but before Zn
4 0
3 years ago
Other questions:
  • What part of an atom bonds with other atoms
    13·2 answers
  • Why does fullerene has a lower melting point than diamond?
    8·1 answer
  • Suppose that you have a 60 0% solution of NaOH. How many millions of water must be added to 300 ml of this solution to prepare a
    6·1 answer
  • What are the conditions for an addition reaction?
    8·2 answers
  • What is the freezing point (in degrees Celcius) of 3.75 kg of water if it contains 189.9 g of C a B r 2?
    6·2 answers
  • PLEASE HELP AND DONT YOU DARE GIVE ME THE LINK
    15·1 answer
  • HURRRY ASAP!!
    10·1 answer
  • Glucose is absorbed into the blood in the small intestine. Most of the glucose is absorbed by diffusion. How does the glucose co
    10·2 answers
  • What type of energy is torque?
    11·2 answers
  • At what pressure would a 5.32 mol Cl2 sample occupy 5.08 L at 181.59 K? please help!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!