Answers
Explanation:
Chlorine is a non metal so covalent bond. KBr has K metal and Br non metal of opp. charges so ionic bond. Na is a metal so ionic bond. NaCl has Na as metal and Cl as a non metal so ionic bond.
D is incorrect
Related Questions
Chemistry
How does the difference in size of particles affect the rate of diffusion?
Answers
Explanation:
Heavier particles will move more slowly and so will have a slower rate of diffusion. Smaller particles on the other hand will diffuse faster because they can move faster.
Explanation:
smaller particles diffuse faster
larger particles diffuse slower
a helium laser emits light with a wavelength of 633nm. what is the frequency of light
Answers
Answer:
14 ft 7 inches
step-by-step explanation:
since each model inch corresponds to 25 real inches, 7 model inches will correspond to
7×25" = 175"
at 12" per foot, that is 14 feet, 7 inches.
Explanation:
new substances are formed in a chemical reaction as a result of
Answers
Answer:
New substances formed when breaking of bonds take place and new bonds get formed which results in formation of new products. That breaking of bond is a chemical change because in such a process composition of substance gets changed and forms a new substance.
Fluorine + sodium chloride → sodium fluoride + __________. What is the missing chemical name?
Answers
Answer:
Chlorine (Cl)
Explanation:
The equation would be:
[tex]F+NaCl[/tex] → [tex]NaF + Cl[/tex]
This is because no atom is lost in a reaction. Chlorine would be the missing chemical as it is on the other side of the equation and needs to be accounted for on the products side.
The missing chemical in the reaction of sodium chloride with fluorine forming sodium fluoride is chlorine.
What is a chemical equation?The chemical equation is given as the representation of the reactants molecules and the product molecules in a chemical reaction.
The reaction follows the law of conservation and thereby no element will be lost in the reaction. Thus, the chemical reaction for the fluorine and sodium chloride is given as:
Fluorine + Sodium chloride → Sodium fluoride + Chlorine
Thus, the missing chemical in the reaction was chlorine.
Learn more about a chemical reaction, here:
https://brainly.com/question/3461108
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Part E
In which state of matter are the particles the most spread out?
Answers
Gas has the most spread out particles.
when an atom become a negative ion, where do the extra electrons come from?
Answers
Answer:
Valence Shell
Explanation:
Some atoms have nearly eight electrons in their valence shell and can gain additional valence electrons until they have an octet. When these atoms gain electrons, they acquire a negative charge because they now possess more electrons than protons.
why is beryllium-8 different from beryllium-9 in terms of the nuclear particles?
Answers
Answer:
Beryllium-8 (8Be, Be-8) is a radionuclide with 4 neutrons and 4 protons. It is an unbound resonance and nominally an isotope of beryllium. It decays into two alpha particles with a half-life on the order of 10−16 seconds; this has important ramifications in stellar nucleosynthesis as it creates a bottleneck in the creation of heavier chemical elements. The properties of 8Be have also led to speculation on the fine tuning of the Universe, and theoretical investigations on cosmological evolution had 8Be been stable.
Explanation:
Nitrogen makes up ________ of our atmosphere??? will mark Brainliest
Answers
he atmosphere is 78% nitrogen
this is the new one I will mark brainlist NO LINKS OR I WILL REPORT YOU
Answers
Answer:
ok what is new. ........,,,,,
All matter is made up of atoms and molecules that are what?
Answers
An object has a volume of 2 cm3 and a mass of 4 g. What is the density of the object?
Answers
Answer: 2.0 grams per cubic centimeter
Explanation: i had this
In which state of matter are electrons stripped from the nucleus
Answers
Plasma is one of the four common states of matter. A plasma is an electrically charged gas. In a plasma, some electrons have been stripped away from their atoms.
Explanation:
Plasma is one of the states of matter that are electrons stripped from the nucleus
10. A balloon is blown up to a volume of 18 L at a pressure of 1.0 atm and
298 K. What would the pressure inside the balloon be when its volume
becomes 4.0 L and its temperature is 239 K?*
Answers
Answer:
3.6 atm
Explanation:
10. A balloon is blown up to a volume of 18 L at a pressure of 1.0 atm and
298 K. What would the pressure inside the balloon be when its volume
becomes 4.0 L and its temperature is 239 K?*
PV/T = P'V'/T'
(18 X 1)/298 =(P' X 4)/239
so
P' = (18 X 239)/(298 X 4)= 3.6 atm
P'=(18 X 239)/(298 x 4) =
A block of material has a density of 1.29 g/cm. what is the volume of 190 g in cubic
centimeters?
No units required
Answers
Answer:
147.28 cm³
Explanation:
Density = m/V
1.29 g = 190 g/cm3/V
V = 190 g/cm³ : 1.29 g
V = 147.28 cm³
How do I know the melting point and boiling point of each chemical?
Answers
Add the value obtained for ΔTb to the standard boiling point of the solvent (ex. 100 C for water) or subtract the value obtained for ΔTf from the standard freezing point of the solvent (ex. 0 C for water).
. Which situation will result in lower average kinetic energy? a) 100 people go swimming into a NYC public pool b) 100 people go swimming at Coney Island beach
Answers
Answer:
I think it would be the beach because all the waves and such but in a pool with more people there is a tight space so they cant move around as much and as freely. But this could be a trickster question but I would choose the beach.
Hope this is right :)
ENT
Which of the following is one of Mendel's laws?
Law of Independent Assortment
ouTube
Law of DNA contains genes
Law of Segregation of Genes
Answers
Answer:
law of independent assortment
Why can some mixtures not be classified as solutions?
A. Not all mixtures have solutes
B. Not all mixtures are heterogeneous
C. Mixtures are made of only one substance
D. Not all mixtures are homogenous
Answers
Answer:
not all mixture have solutes
Which is an outer planet?
Answers
Answer:
Saturn
Explanation:
Mercury, Venus, and Mars are all inside the asteroid belt. Saturn is outside the asteroid belt along with Jupiter, Neptune, Uranus, and if you count, Pluto
Someone answer these both for me
Answers
Answer:
a b
Explanation:
I think so take it with a grain of salt
PLEASE HELP!!!
Most lakes have rivers flowing out of them, carrying water to the ocean. However, some
lakes, including Great Salt Lake and the Dead Sea, have no outlet. Water flowing into
these lakes leaves only through evaporation. Considering that the water flowing into the
lakes contains many dissolved substances, how does the lack of an outlet affect the
composition of these lakes? What would you expect to happen after many more years
of inflow and evaporation?
Answers
Answer:
I feel like it could lead to flooding
Someone pls help me I will make you brain
Answers
Answer:
D cooler temperatures
Explanation:
Make me b r a i n please
(1) __________ are separated without any chemical reactions. There are many
different kinds of mixtures. Different mixtures are separated in (2)__________ ways.
Physical (3)__________ separates the components of varying sizes using a
spoon or any scooping material or by picking. The use of (4)__________ can be done
to separate the metallic materials from nonmetallic materials. (5)__________ is the
separation of an insoluble solid from a liquid mixture using a semipermeable
membrane like filter paper.
In decantation, the large particles of insoluble solid are separated from the
(6)__________ mixture. (7)__________ separates the soluble solid from the liquid
component of the solution by evaporating the liquid substance.
choices
magnet
mixtures
filtration
different
manipulation
evaporation
liquid
Answers
Answer:
1. Mixtures
2. Different
3. Manipulations
4. Magnet
5. Filtration
6. Liquid
7. Evaporation
Cho hai điện tích q1 = 2.10-6 C, q2 = 4. 10-6C, đặt tại A và B trong không khí biết AB = 2 cm. Xác định vectơ cường độ điện trường tại:
a) H, là trung điểm của AB.
b) . M, MA = 1 cm, MB = 3 cm.
c) N, biết rằng NAB là một tam giác đều.
Answers
Answer:
AExplanation:
sorry try lang baka malibest answer will be tagged brainliest.... no spamming pliz
Answers
[tex]\huge \mathcal \fcolorbox{cyan}{black}{ \blue{AnSweR}}[/tex]
A. Chloride ions (CI)
[tex] \large{ \green{ \bold{ \underline{ \underline{ \overline{ \overline{ \pink{hope \: this \: helps \: you \: \: ✌}}}}}}}}
[/tex]
na+F2-> naF a chemical reaction. the synthesis of sodium fluoride noF is shown above all chemical reactions involve a change to an atoms number of protons neutrons electrons
Answers
Answer: Electrons
Explanation:
A chemical reaction usually only affects elctrons. A chemical reaction usually results in the electrons being transferred or shared. When sodium and fluorine react to produce sodium fluoride, a sodium electron is transferred to the fluorine to produce ionic bonds. This ionic bond exists between the sodium cation and fluoride (fluorine) anion.
1
16. What biological concept was Mendel studying when he crossed pea plants many times
over many generations?
A dominant and recessive traits
B. imbalance in ecosystems
C. predator-prey relationships
D. male and female genetic difference
Answers
Answer:
Explanation:
A: Since the Pea plant matured very quickly he was able to identify how the dominant and recessive genes worked.
helppppppppppppppppp
Answers
Answer:
sana all may brainnnnnnnnnnnnn
why should you not change the subscripts in chemical formulas when balancing chemical equations?
Answers
Answer:because the chemical formula is vital to the equation it tells you what creates the chemical and whats in it you can change the exponents but not the formula itself
Explanation:
Fill in the blanks for the following statements:
Different isotopes of the same element have the same number of
in the nucleus, but different numbers of
in the nucleus. This means that isotopes have different atomic
You can calculate the
lons are atoms with a charge that is not
in the nucleus and
charge of an atom by adding the number of
in the cloud,
subtracting the number of
Answers
Answer:
gctcuv
Explanation:
jygciutvguv