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
Alika [10]
3 years ago
15

Use this picture to explain that an electrically charged object can attract an uncharged object without any contact. Your answer

should be at least three sentences long.
a balloon hanging from a string with small pieces of paper stuck to the bottom of it, with a few pieces on the ground
Chemistry
1 answer:
Musya8 [376]3 years ago
6 0

Answer:

Explanation:

......where's the picture--

You might be interested in
100 points!! Brainliest if correct!!
natta225 [31]

B will make little difference to reaction rate while C and D will reduce the reaction rate. So the answer is A. adding heat energy to the reactants .

4 0
3 years ago
Read 2 more answers
Sodium hydride reacts with excess water to produce aqueous sodium hydroxide and hydrogen gas:NaH (s) H2O (l) → NaOH (aq) H2 (g)A
Anuta_ua [19.1K]

NaH(s)+ H2O (l)=>NaOH(aq)+H2(g)

You want to calculate the mass of NaH, I assume.  Otherwise, the question isn't clear.  It simply says calculate the mass(??)

 

So, calculate the moles of H2 gas that satisfy the conditions of 982 ml at 28ºC and 765 torr.  But you must subtract the vapor pressure of water at 28º to get the actual pressure of the H2 gas.  So, the actual conditions are 982 ml (0.982 L) and 301 K and 765-28 = 737 torr.

PV = nRT

n = PV/RT = (737 torr)(0.982 L)/(62.4 L-torr/Kmol)(301 K)

n = 0.0385 moles H2

 

moles NaH needed = 0.0385 moles H2 x 1 mole NaH/mole H2 = 0.0385 moles NaH required

mass of NaH needed = 0.0385 moles x 24 g/mole = 0.925 g NaH

Brainliest Please :)

7 0
3 years ago
Read 2 more answers
Which of the following is not an example of a science? a.geology b.astrology c.astronomy d.ecology
Rasek [7]
I think it is b.astrology

6 0
3 years ago
Convert 5.50 mol of MgO to g.
Fiesta28 [93]

Answer:

5.50 moles of magnesium oxide is 221.6742 grams

Explanation:

to do this you multiply the number of moles by the molar mass

7 0
2 years ago
Which type of galaxy forms when two other galaxies crash into each other? They are small galaxies made up of bright, young stars
GenaCL600 [577]

Answer:

elliptical galaxy

Explanation

:The combination of the two galaxies then forms what appears to be an elliptical galaxy as the arms begin to disappear. The merger of gasses creates new stars, and the new shape becomes more elliptical, globular, or sometimes irregular.

4 0
2 years ago
Other questions:
  • Describe how the law of conservation of energy is demonstrated in this laboratory activity.
    9·1 answer
  • What element is used in light bulbs as a filament???? help rly need help
    8·1 answer
  • HELP.
    12·1 answer
  • Water can exist in three states of matter. Imagine examining the changes of state from solid to liquid to gas by adding to ice.
    9·2 answers
  • Describe the relationship between gravitational force and distance<br> as shown in the diagram.
    12·1 answer
  • Determine the number of HC=CH, monomeric units in one molecule of polyethylene with a molar
    7·1 answer
  • What is the name for the S2- ion
    11·1 answer
  • How many milliliters of 2.5 M HCl are required<br> to exactly neutralize 1.5 L of 5.0 M NaOH?
    13·1 answer
  • Balance the reaction and determine which of the following coefficients
    7·1 answer
  • 1 point
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!