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
Free_Kalibri [48]
3 years ago
14

60 points one of the questions im stuck on

Chemistry
2 answers:
Dafna1 [17]3 years ago
7 0

Answer:

6 meters per second

Explanation:

they fly 60 meters in 10 seconds. So to find how many meters they fly in one second, we divide by 10.

60m/10secs = 6 m/s

Yuri [45]3 years ago
4 0

Answer:

6 m/s is the answer.

Explanation:

speed = distance/time

(please mark me brainliest if you can)

You might be interested in
List three organelles found in cells and describe their functions.
kozerog [31]

nucleus: controls cell

cell membrane: controls what goes in and out of a cell

cytoplasm: where chemical reactions take place

3 0
3 years ago
Read 2 more answers
5. A penny weighs about 2.5 g. How many moles of pennies would be required to equal the mass of the moon (7.3x10^24 kg)
schepotkina [342]

5. 1.16 x 10^{26} moles  moles of pennies would be required to equal the mass of the moon.

6. 12.86 moles of ethanol are in a 750 ml bottle of vodka.

Explanation:

5 .Data given:

mass of penny = 2.5 grams

atomic mass of penny = 62.93 grams/mole

moles present in mass of the moon given as = 7.3 x 10^{24} kg

number of moles = \frac{mass}{atomic mass of  1 mole}

number of moles = \frac{2.5}{62.93}

0.039 moles of penny is present in 2.5 grams

0.039 moles of penny in 2.5 grams of it

so, x moles in 7.3 X 10^{27}  grams

\frac{0.039}{2.5} =\frac{x}{7.3 X 10^{27} }

x = 1.16 x 10^{26} moles

so when the mass of the penny given is equal to the mass of moon, number of moles of penny present is 1.1 x 10^{26} .

6.

Given:

vodka = 40% ethanol

volume of vodka bottle = 750 ml

moles of ethanol =?

density of ethanol =0.79 g/ml

atomic mass of ethanol = 46.07 grams/mole

so, from the density of ethanol given we can calculate how much ethanol is present in the solution.

density = \frac{mass}{volume}

density x volume = mass

0.79 x 750 = 592.5 grams

number of moles = \frac{mass}{atomic mass of 1 mole}

number of moles of ethanol = \frac{592.5}{46.07}

                                               = 12.86 moles of ethanol

6 0
3 years ago
N which city did the united states first drop the atomic bomb?
spayn [35]
I believe it was Hiroshima. Followed by Nagasaki. Moscow was never bombed in my knowledge, and Auschwitz was a death camp, so it wasn't bombed.
7 0
3 years ago
Why does a metal bond with a non-metal in ionic bondings?? ASAP please
crimeas [40]

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.

4 0
3 years ago
Why empty gas cylinder is dangerous?​
Irina-Kira [14]

Answer:Empty gas cylinders are dangerous because the can explode and cause hazards and empty gas cylinders with open valves can breath,this can cause explosion.

Explanation:

4 0
3 years ago
Other questions:
  • Why are plastics called polymers? Explain the nature of a polymer.<br><br><br><br> Hurry please!
    7·1 answer
  • What is the nature of this chlorine ion?
    8·2 answers
  • Balance the following equation. <br> use “1” when needed __Ga2o3-&gt;__Ga +__02
    15·1 answer
  • The rate of dissolution is affected by all of the following except the A. agitation of solute within the solvent. B. surface are
    11·1 answer
  • Where do neutrons come from?
    11·2 answers
  • C2H6 + 7O2 ---&gt; 6H2O + 4CO2 is it balanced
    13·1 answer
  • Given the following reaction and data, A + B → Products
    8·1 answer
  • Value of MA is always lesser thàn 1 why?​
    5·1 answer
  • Which element is most chemically similar to element G
    8·1 answer
  • E girls get free brainliest<br>​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!