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chubhunter [2.5K]
3 years ago
14

The weight of an object is constant. true false

Chemistry
2 answers:
Dahasolnce [82]3 years ago
8 0
False weight is dependent on the force of gravity 
 
shusha [124]3 years ago
5 0

Answer:

its false the other guy was right idk why you guys marked him wrong

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At what phase of mitosis are two separate nuclei are formed as nuclear membranes form around
jeka57 [31]
Probably telophase because for the difference in the nuclear membrane
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3 years ago
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HBr + KHCO3 --> H2O + KBr + CO2
Reil [10]

16 grams.   
 Looking at the reaction equation, it's evident that for each mole of HBr
consumed, 1 mole of CO2 will be produced. So let's calculate the molar mass
of HBr and CO2 first. 
 Atomic weight hydrogen = 1.00794  
 Atomic weight bromine = 79.904  
 Atomic weight carbon = 12.0107  
 Atomic weight oxygen = 15.999   
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3 0
4 years ago
As a team, determine the rules for naming binary ionic compounds that have a "special" transition metal in it when given the for
Lesechka [4]

Answer:

Metal name (charge in roman numerals) Non metal

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Explanation:

The rule for naming special transition metal are as follows -

a) First name the transition metal

b) Now write the name of the non metal in the chemical formula.

c) Write the charge for the non metal.

d) If there is a polyatomic ion, write the Common Ion Table ,its formula and charge.

e) Based on the total charge on the non-metal or polyatomic ion, deduce the total charge on the transition metal

f) Write the charge of transition metal after the name of metal in Roman Numeral in parentheses

3 0
3 years ago
21. List 3 indicators of a chemical change.
AfilCa [17]

21. change in temperature, change in color, or noticeable odor (after reaction has begun)

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23. An ion is an atom or molecule with an electric charge. It is formed when atoms lose or gain electrons. There are two types of ions: cations (net positive charge) and anion (net negative charge).

24. Picture

25. a) dinitrogen tetrahydride

     b) phosphorus triiodide

     c) lithium hydroxide

5 0
3 years ago
Read 2 more answers
If you have 110.0 grams of an unknown compound that contains 12.3 grams of hydrogen, what is the percent by mass of hydrogen in
Vladimir [108]
All you have to do is a simple division "parts over the whole"

12.3 grams H/ 110 grams compound x 100= 11.2%
8 0
3 years ago
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