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bija089 [108]
3 years ago
13

C

Chemistry
2 answers:
Basile [38]3 years ago
6 0
I just need to answer
PolarNik [594]3 years ago
5 0

Answer:

Gravity

because the earth which pulls any object towards it center and the velocity is achieved

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8. Based on the formula, predict whether each of the following compounds is primarily ionic or primarily covalent. a. sodium iod
Lina20 [59]

primarily ionic  include = sodium iodide( NaI) ,   calcium chloride  ( CaCl2)


primarily covalent    include  - Ammonia (NH3) , Methane ( CH4)  and  

                                                   Glucose  (C6H12O6)


Explanation

ionic  bond  is formed  when  there is complete transfer of electron between atoms. It occur  between metal  which  donate electrons and  a  non  metal which accept  electrons.

 for  example  in  formation  of CaCl2,   ca  donate  2 electron to 2  Cl atom, while  2 Cl atom accept the 2  electrons  to form ionic bond.

 Covalent bond  is formed  when two or  more  non  metal  form bond by sharing  electrons pairs.

For  example in NH3   3 pairs of electron are shared.  to form covalent bond.

                               

8 0
3 years ago
If the crucible originally weighs 3.715 g and 2. 000 g of hydrate are added to it , what is the weight of the water that is lost
dimulka [17.4K]
For this, you need to know 1) the mass of the hydrate and 2) the mass of the anhydrous salt. Once you have both of these, you will subtract 1) from 2) to find the mass of the water lost.

From the problem, you know that 1) = 2.000 g.

Now you need to find 2). You know that your crucible+anhydrous salt is 5.022 g. To find just the anhydrous salt, subtract the mass of the crucible (3.715 g).

1) = 5.022 g - 3.715 g = 1.307 g

Now you can complete our original task.

Mass H2O = 2) - 1) = 2.000 g - 1.307 g = 0.693 g.


4 0
4 years ago
Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
ki77a [65]
1.Reflection
2.medal spoons
3.strike an object and bounces off
4.d
and thats all ik

hope this helps!
3 0
3 years ago
Read 2 more answers
Camphor is reduced to isoborneol by sodium borohydride in ethanol. The instructions for safe disposal of the chemical waste gene
Ronch [10]

Answer:

A) The reaction waste is still generating hydrogen gas that would get trapped in the container.

6 0
4 years ago
Read 2 more answers
Complete the passage to describe how electrons are represented in electron dot diagrams. The maximum number of dots an electron
romanna [79]

D. 8, A. 2

Hope this helps

6 0
4 years ago
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