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
elixir [45]
4 years ago
15

1) When elements combine to form compounds:

Chemistry
1 answer:
vodomira [7]4 years ago
6 0

Answer:

B

Explanation:

when elements reacts to form a compound the elements properties changes completely. This happens due to the fact that a chemical reaction has taken place. In a chemical change new substances are formed and the properties of the products differ entirely from that of the reactant.

for example if hydrogen combines with oxygen to form water, the property of hydrogen differs from oxygen and also both differs chemically when compared to water.

You might be interested in
What mass of CO2 can be produced from the decomposition of 4.8 moles of Fe2(CO3)3?
gavmur [86]

Answer: 633.6 g of CO_2 can be produced from the decomposition of 4.8 moles of Fe_2(CO_3)_3

Explanation:

The balanced chemical equation for decomposition of Fe_2(CO_3)_2 is :

Fe_2(CO_3)_2\rightarrow Fe_2O_3+3CO_2

According to stoichiometry :

1 mole of Fe_2(CO_3)_2 produce = 3 moles of CO_2

Thus 4.8 moles of Fe_2(CO_3)_2 will rproduce=\frac{3}{1}\times 4.8=14.4moles  of CO_2

Mass of CO_2=moles\times {\text {Molar mass}}=14.4moles\times 44g/mol=633.6g

Thus 633.6 g of CO_2 can be produced from the decomposition of 4.8 moles of Fe_2(CO_3)_3

7 0
4 years ago
How many moles of MgSiO3 are in 199 g of the compound?
Leokris [45]
24.305 g +28.08 g + 3(15.999 g)=100.382
219 g MgSIO3 (1 mole MGSIO3/100.382g)=2.181 mol MgSIO3
the answer is 2.18 mol MgSIO3
8 0
3 years ago
Water soluble molecules often enter or exit a cell in what process?
rusak2 [61]
Facilitated diffusion is your answer
3 0
3 years ago
Read 2 more answers
What is the charge of the nucleus in boron
Reptile [31]

Answer:

Boron atoms lie in hexagonal aromatic graphite-like layers, with a charge of −1 on each boron atom. Magnesium (II) ions lie between layers Binary metal-boron compounds, the metal borides, contain boron in negative oxidation states. Illustrative is magnesium diboride (MgB 2).

Explanation:

8 0
3 years ago
DIFFERENCE BETWEEN IONIC AND COLAVENT COMPOUNDS
Fudgin [204]

Answer: In covalent bonds, atoms share electrons, whereas in ionic bonds atoms transfer electrons. The reaction components of covalent bonds are electrically neutral, whereas for ionic bonds they are both charged. ... Covalent bonds are formed between two non-metals, whereas ionic bonds are formed between a metal and non-metal.

5 0
3 years ago
Other questions:
  • What is the force of gravity dependent on<br>​
    7·2 answers
  • BRAINLIESTTT ASAP!!! PLEASE HELP ME :)
    12·1 answer
  • The equilibrium constant for the chemical equation N2(g)+3H2(g)↽−−⇀2NH3(g) N 2 ( g ) + 3 H 2 ( g ) ↽ − − ⇀ 2 NH 3 ( g ) is Kp =
    12·1 answer
  • Which one of the following atoms has the largest radius?<br> Sr, Rb, K, Ca, Y
    14·1 answer
  • Enid claims that two concentrated solutions will have a lower reaction rate
    11·2 answers
  • HELPP ASAP PLEASE SEE IMAGES
    9·1 answer
  • Which one of these anions would have an "ic" ending as an acid?
    15·2 answers
  • When an electron in an atom moves from high to low
    13·1 answer
  • How do you explain the ability of nonmetals to attract electrons to themselves?
    9·2 answers
  • Can you describe a carbon atoms for me please<br><br> thank you
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!