Answer:
C: Something looking bent under water.
ANSWER ASAP Which part of the picture shows evidence of matter scattering light waves in
many different directions?
O A. The color of the tree appears black against the sky.
O B. The image of the moon in the sky is incomplete.
OC. The image of the moon on the water's surface is distorted.
OD. The colors on the water's surface match the colors in the sky.
Answer:
The evidence of matter scattering light wave in many different directions is;
D. The colors on the water's surface match the colors in the sky
Explanation:
Light scattering is used to describe the sending of a given beam of light in many directions (by tiny particles) when the light passes through a medium, due to the disruption of the bath of the light ray as it bumps into the tiny particles
Water has the nature of absorbing the red light. The light that enters the water is scattered by the tiny particles in the water such that the blue light which is the spectrum of light water allows to pass through is reflected along with the reflection of the sky and the colors of the water surface match the colors of the sky.
Answer:
C.
Explanation:
I took the quiz
Metals tend to — electrons and nonmetals tend to —
Electrons
Answer:
Non-metals tend to gain electrons to attain Noble Gas configurations. The have relatively high Electron affinities and high Ionization energies. Metals tend to lose electrons and non-metals tend to gain electrons, so in reactions involving these two groups, there is electron transfer from the metal to the non-metal.
When sodium atoms (Na) and chlorine atoms (CT) join to make sodium chloride, or table salt, they form an ionic bond, Using this information, which pair of elements is most likely to form an ionic bond? O potassium (K) and fluorine (F) aluminum (AI) and aluminum (AD O sulfur (S) and oxygen (O) O calcium (Ca) and neon (Ne)
Answer:
D I'm pretty sure.
Explanation:
I'm taking the quiz right now and D makes the most sense.
Answer:
d
Explanation:
Although the order of elements is based on atomic number, vertical families share similar chemical properties.
Question 12 options:
True
False WHAT IS IT
Answer:
It's true
Explanation:
Uhhh, the internet! lol.
Answer:
It's true, ExplanationVVVExplanation: Because the order of elements is based on atomic number, vertical families share similar chemical properties.
1. To calculate the molarity of a solution, you need to know the moles of solute and the
O volume of the solvents
O mass of the solution
O volume of the solution
volume of the solute
Answer:
O volume of the solution
Explanation:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles of solute / volume of solution in L
For example:
if we dissolve the 1 mole of NaCl to make the solution of volume 2 L. The molarity of solution is,
M = 1 mol / 2 L
M = 0.5 M
Is Mg(CH3COO)2 soluble or insoluble
Answer:
It is Soluble
Explanation:
Name- Magnesium acetate
It dissolves easily in water and alcohol.
The temperature of a city during a week was 35° C, 36°C, 34°C, 38°C, 40°C, 39°C and 44°C. What was the average daily temperature of the town for the week?
Answer:38°
Explanation:
Explain the process of ionic bond formation between K
(potassium, a metal) and Br (bromine, a nonmetal).
I
Answer:
Metals transfers electrons to nonmetals. So K transfers one electron to Br because K is located at 1A in the periodic table. Br has seven electrons, now both K and Br are stable by gaining and losing one electron. The transfer of electrons makes metals to become positive ions and nonmetal to become negative ions. When an ionic bond is formed, the charges attract each other.
Answer: Metals transfers electrons to nonmetals. Potassium -K transfers one electron to bromine- Br because K is located in group 1A on periodic table. Br has seven electrons and located group 7A. Both K and Br stable by gaining and losing one electron. The transfer of electrons makes metals to become + positive ions and nonmetal to become - negative ions. An ionic bond is formed, the charges attract each other.
Explanation: Metals donate, or transfer, electrons to the nonmetal.
The transfer of electrons creates a positive ion and a negative ion.
An ionic bond is formed when the charges attract each other.
HELP!!! 2Mg+O2->2MgO
What are the products of this reaction??
WILL GIVE BRAINLEST
Answer:
the products which is formed in the given reaction is MgO ( magnesium oxide )
Explanation:
when magnesium metal reacts with oxygen present in air it burns with a white dazzling flame
to form white powder of magnesium oxide (MgO)
here's the balanced chemical reaction for it
2Mg+O2->2MgO
How is chemical bonding useful to our lives?
Answer:
Three types of chemical bonds are important in human physiology, because they hold together substances that are used by the body for critical aspects of homeostasis, signaling, and energy production, to name just a few important processes. These are ionic bonds, covalent bonds, and hydrogen bonds.
Explanation:
Can anybody help me asap pls
Answer:
Here is ur answer...
Explanation:
2) Half-filled d orbital increases the stability of the element.
8. __H2 + __O2-> __H2O
9. __K2SO4 + __H2-> __H2SO4 + __K
10. __NO2 + __H2O-> __HNO3 + __NO
Anser:
Explanation:
hope this helps
If something is up higher it will have ________________ potential energy.
the same
more
less
Answer:
More
Explanation:
Which feature does an iron metal have?
O electrons that transfer between atoms to make cations and anions
O a sea of electrons
O firmly bonded electrons
O electrons shared between single pairs of atoms
Answer:
a sea of electrons
Iron metal has a sea of electrons.
Iron metal is an element which possesses a sea of electrons as a result of it
containing cations which are usually surrounded by electrons which move at
a very fast pace .
This property makes Iron metal to be reactive when exposed to air( oxygen)
and it then forms various compounds such as Iron(II) oxide, Iron(III) oxide and
rust.
Read more on https://brainly.com/question/20466452
0.00099989
3 sig figs, scientific notation
Help please I need it!
PLEASE HELP ME FILL IN THE BLANKS
Answer:
The order the words go for the blanks
Explanation:
Interia
Rest
Constant
Unbalanced
Balanced
Distance
Automobile catalytic converters use a platinum catalyst to reduce air pollution by changing emissions such as carbon monoxide, CO(g), into carbon dioxide, CO2(g). The uncatalyzed reaction is represented by the balanced equation below.2CO(g) O2(g) 2CO2(g) +heat. determine the mass of O2(g) required to completely react with 784g moles of CO(g) during this reaction.
Answer: 448 g of [tex]O_2[/tex] will be required to completely react with 784g moles of CO(g) during this reaction.
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of} CO=\frac{784g}{28g/mol}=28moles[/tex]
The balanced chemical equation is:
[tex]2CO(g)+O_2(g)\rightarrow 2CO_2(g)[/tex]
According to stoichiometry :
2 moles of [tex]CO[/tex] require = 1 mole of [tex]O_2[/tex]
Thus 28 moles of [tex]CO[/tex] will require=[tex]\frac{1}{2}\times 28=14moles[/tex] of [tex]O_2[/tex]
Mass of [tex]O_2=moles\times {\text {Molar mass}}=14moles\times 32g/mol=448g[/tex]
Thus 448g of [tex]O_2[/tex] will be required to completely react with 784g moles of CO(g) during this reaction.
Answer:
Boy I'm really boutta get to yo pickle chin ahh boy, egg head like collard greens head a//ss boy, oh hell nah boy yo dirt ahh boy stank ahh boy afro head ahh, lip gloss chin ahh boy ugly ahh boi
Explanation:
What are two types of matter are pure substances
Answer:
Elements and compounds are two types of pure substances.
Explanation:
If you discover a new element, how would you know where it should go on the periodic table
Answer:
the atomic number
Explanation:
it would be in the upper corner
What is the atomic number of an element that has seven protons and eight neutrons and seven electrons?
Answer:
Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus. Some nitrogen atoms have an atomic mass number of 15 (A=15). A is the number of neutrons plus protons in the nucleus. However, we already know that there are 7 protons
Answer:
Atomic number = Number of protons = Number of electrons
Atomic number = 7
What are the four functions of cell division?
Answer:
Cellular division has three main functions: (1) the reproduction of an entire unicellular organism, (2) the growth and repair of tissues in multicellular animals, and (3) the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.
Answer:
There are four key reasons why a cell may be required to divide mitotically:
Tissue repair / replacement.
Organismal growth.
Asexual reproduction.
Development (of embryos)
1. What did Henri Becquerel discover about
radiation emitted from uranium salts?
Explanation:
When Henri Becquerel investigated the newly discovered X-rays in 1896, it led to studies of how uranium salts are affected by light. By accident, he discovered that uranium salts spontaneously emit a penetrating radiation that can be registered on a photographic plate.
what element has three valence electrons in the second energy level.
Answer:
Boron
Explanation:
Hope that helps
Answer:
Boron.
Explanation:
2 energy shells
1st energy she'll 2 electrons
2nd energy shell 3 electrons
what is a galvanic cell made of?
A. two electrodes in electrolyte solution
B. two beakers connected by a tube
C. two ceramic plates in pure water
D.two medal strips surrounded by air
Explanation:
A because A galvanic cell consists of two half-cells, such that the electrode of one half-cell is composed of metal A, and the electrode of the other half-cell is composed of metal B; the redox reactions for the two separate half-cells are thus: An+ + ne− ⇌ A.
Answer:
A
Explanation:
DUE VERY VERY VERY SOON
What are the rows of elements called on the periodic table?
Answer:
"The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups."
Explanation:
I GIVE OUT FREE POINTS
Which of the following was NOT among Democritus's ideas?
A. Matter consists of tiny particles called atoms.
B. Atoms are indivisible.
C. Atoms retain their identity in a chemical reaction.
D. Atoms are indestructible.
Answer:
pretty sure its C
Explanation:
Democritus was all about the consept f tiny indestructible partivls called atoms so C is the only one that doesn' t fit
Answer:
I'm pretty sure it's A
APE X What is happening to particles of matter while a change of state is taking place?
a. They are staying at the same speed
b. They are multiplying in number
c. They are slowing down
d. They are speeding up
Answer:
a. They are staying at the same speed
Explanation:
IF CORRECT PLSPLSPLS GIVE BRAINLIEST WOULD APPRECIATE :)
Answer:
a. They are staying at the same speed
The general area of the atom (outside the nucleus) where the e- are located is the — and —
PLEASE HURRY
Which layer of Earth is the densest and why is that so?
A: The outer core is densest due to gravitational compression.
B: The outer core is densest due to generation of radiogenic heat.
C: The outer core is densest due to accretion.
C: The inner core is densest due to gravitational compression.
D: The inner core is densest due to generation of radiogenic heat.
Answer:
D
Explanation:
Answer: C: The inner core is densest due to gravitational compression
Explanation: