Answers
Answer:
1) clouds 2) quick 3) near 4) levels 5)nucleus 6) two 7) eight 8) eighteen 9) pairs 10) properties
Explanation:
hope i helped!
Answer:
1. clouds
2. quick
3. near
4. levels
5. nucleus
6. two
7. eight
8. eighteen
9. pairs
10. properties
I do not know if I got 6-8 correctly but I got the other answersRelated Questions
An element in group 3 that is a good conductor of electricity.
Answers
Answer:
Well for me I think
Explanation:
it's Aliminium
Answer:
Aluminum is good in heat and conductor
HELP IN 8TH GRADE ADV SCIENCE
Answers
Answer:
protons: 36
neutrons: 48
electrons: 36
Which physical properties do glass and ice share? Select the two correct
answerS.
DA Density
D B. State
DC. Melting point
D D. Brittleness
SUBMIT
Answers
B, C
verified just did it
B. State
C. Melting Point
Both ice and glass comes under the category of solids since they have definite shape and definite volume. Both the ice and glass allows light to pass through it, that means they are transparent in nature.Ice floats, we can infer that ice must be less dense than water. If water is frozen in a glass jar, the glass jar breaks. This implies they both have similar densities.Thus, options B and C are correct.
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What is the name given to the group 0 elements
Answers
Answer:
the noble gases
As shown by the periodic table, why do the elements potassium and sodium have similar chemical properties?
Answers
This is the answer
The elements potassium and sodium have similar chemical properties because they have the same number of valence electrons and form +1 ions.
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An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to
the right. What is the displacement of the object?
1
5
7
13
Answers
Answer:
the answer will be five
Explanation:
i got this question on a test and i got it right
Compare the potential energy of two atoms chemically bonded to their potential energy when separated.
Answers
Answer:
See explanation
Explanation:
The essence of chemical bonding is in order to attain minimum energy. The minimum energy state is the most stable state of a chemical system.
As the distance of separation between atoms decreases, the potential energy of the system decreases accordingly.
An optimum distance is reached when the two atoms attain the lowest potential energy. This is designated as the bond distance of the two atoms.
Hence two atoms have lower potential energy when bonded than when separated at large distance.
When two atoms are chemically bonded they have Lower potential energies while when they are separated they have higher potential energies
The potential energies of atoms chemically bonded is directly proportional to the distance between the atoms ( i.e as the distance between atoms decrease the potential energies of the atoms decreases accordingly) and this enables chemically bonded atoms to attain a more stable state.
The lower the potential energy of bonded atoms the more stable the element/compound becomes therefore it is necessary that bonded atoms attain the least possible potential energy.
Hence we can conclude that When two atoms are chemically bonded they have Lower potential energies while when they are separated they have higher potential energies .
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How many atoms of the element with atomic number 11 are in the reactants of the given formula?
2 NaCl + H2SO4 → 2 HCl + Na2SO4
Answers
The number of Na atoms in the reactants = 2
Further explanationEvery chemical reaction involves compounds that can act as reactants or products
The reactants will react to produce products
The reactants are usually written on the left side of the reaction, while the products on the right side of the reaction
Reaction
2 NaCl + H₂SO₄ → 2 HCl + Na₂SO₄
The element with atomic number 11 = Na(Natrium)
The number of atoms of the element that reacts or is produced can be seen from the reaction coefficient and the number of atoms in the compound
Na in NaCl = 1 atom
From equation, cofficient for NaCl = 2, so number of atoms of Na=2 x 1 = 2
separation methods for coconut oil and water
Answers
Answer:
[tex]\huge\mathtt{{\colorbox{silver}{ANSWER~~~↴}}}[/tex]
we use a separating funnel to separate oil from water , we are using funnel because both water and oil both are immiscible liquids.
the process of separation of oil from water is called filtration ✔️
no copied answer :)
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What is the name of the warm phase associated with melting ice and higher sea level? PLSSSSSSS ILL GIVE 5 STARS PLSSS JUST PLS HELP ME ITS FOR MY MIDTERM REVIEW ;-; ITS DUE TODAY!!! PLSSS
Answers
Global Warming
Explanation:
The melting of the polar ice caps due to mostly negative human interactions with the environment.
Which statement is true about a reaction represented by a chemical equation that shows energy as a reactant?

A.
It absorbs energy.

B.
It releases energy.

C.
It is a replacement reaction.

D.
It is a combustion reaction.
Answers
reactants are located on the left side of the equation, meaning energy among with other reactants were needed to get the reaction going, so it absorbed energy, which is also the endothermic process. The opposite of that would be having energy on the right side with the products which means that the reaction would've released energy which is the exothermic process. Hope this helps!
How do we get heat from the sun?
Answers
Answer:
When the Sun's energy moves through space, it reaches Earth's atmosphere and finally the surface. This radiant solar energy warms the atmosphere and becomes heat energy. This heat energy is transferred throughout the planet's systems in three ways: by radiation, conduction, and convection.
Explanation:
Answer:
The sun radiates energy in all directions. Most of it dissipates into space, but the tiny fraction of the sun's energy that reaches Earth is enough to heat the planet and drive the global weather system by warming the atmosphere and oceans. The delicate balance between the amount of heat Earth receives from the sun and the heat that Earth radiates back into space makes it possible for the planet to sustain life.
Hopefully, this helps you out!
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What is one way in which sound and light are alike?
They both travel easily through wood.
They are both types of energy.
They both can travel through outer space.
They both make it easier for you to see what you are doing.
Answers
Answer:
B)They are both types of energy.
Explanation:
Answer:
they both travel easily through wood
Explanation:
i don't want your rbx i just wanna help you:)
Displacement can be added to get the total
a) velocity
b) distance
c) speed
d) acceleration
Answers
Please help me!!!!!!!it is about elements on the periodic table. Please help!!!!!
Answers
Answer:
a\c enables the protons so therefore we duplicate the neutrons making for the first one 80 squared then subtracted by 201 and then do that for all
14. HCOOH is an example of
A. alcohols.
B. aldehydes.
C. carboxylic acids.
D. ethers.
E. ketones.
Answers
Answer:
carboxylic acid is the answer
Explanation:
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what is ideal gas constant?? g0ogle doesnt got any good answerss
Answers
Answer:
An ideal gas is a gas with particular characteristics.
Explanation:
The particles have no volume All collisions between particles are elastic collisions and lose no kinetic energy The particles neither attract each other nor repel They have random movementIdeal gases are hypothetical which means that they do not exist in their true form.
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What caused space technology to improve so quickly?
Answers
Answer:
“spinoff”
Explanation:
Here is just a sampling of the many “spinoff” technologies, as NASA refers to them, resulting from space research and development that we now use in everyday life.
In this reaction, how does the rate of forward reaction vary with the concentration of the product?
2H2S(g) ⇌ 2H2(g) + S2(g)
It increases with an increase in the concentration of S2(g).
It decreases with a decrease in the concentration of H2(g).
It increases with a decrease in the concentration of H2(g).
It decreases with an increase in the concentration of S2(g).
It decreases with increase in the concentration of H2(g).
Answers
Answer:
c d e
Explanation:
Answer:
C D E
Explanation:
#platogang
PLEASE HELP !!
Use the diagram below to answer the following questions.
PLEASE HELP
E TE
Figure B
In Figure B, which region contains the noble gas family of elements?
ОА
OD
ОС
OB
Answers
Noble gas located in the region D
Further explanationNoble gas are located in group 18 in the periodic table consisting of helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), have a stable electron configuration where the valence electrons are 8(full outer shell of electrons), so it is very hard to react because of its stability
If we look at the periodic system of the elements, the noble gases are on the far right, so that in Figure 8 it is located in area D
And the other region :
A : alkali elements(group 1),
B : alkaline earth elements(group 2)
C : halogen elements(group 17)
Please help me choose the correct statement
Answers
what's the molar mass of Li3p
Answers
Answer:
51.79g Li₃P.
Explanation:
Li has a molar mass of 6.94 g (since there are 3, you multiply it 3 times) and P has a molar mass of 30.97 g. 6.94(3) + 30.97 = 51.79g.
I WILL DIE I HAVE A KNIFE IN MY HAND. ANSWER WITH EXPLANATION. If the sound is high pitched, then the wave's frequency would have a:
A.high frequency, short wavelength
B. high frequency, long wavelength
C. low frequency, long wavelength
D. low frequency, short wavelength
Answers
Answer:
A
Explanation:
High frequency, short wavelength
If the ball is at rest on the soccer field and the four forces shown are applied at the same time, the ball will
А.
move to the left.
B. stay in the same position.
c. accelerate in the direction of the smallest force.
D. resist any change in movement.
Answers
Since the rightward force is greater than the leftward force by a magnitude of 10 Newton, the ball will: A. move to the left.
Given the following data:
Upward force = 50 Newton.Downward force = 50 Newton.Rightward force = 30 Newton.Leftward force = 40 Newton.A net force can be defined as the vector sum of all the forces acting on an object.
Hence, net force is the sum of all forces acting simultaneously on an object.
To determine the direction in which the ball would move if the four forces shown are applied at the same time:
For the downward and upward force:
[tex]Net\;force = 50-50\\\\Net\;force = 0\;Newton[/tex]
For the rightward and leftward force:
[tex]Net\;force = 40-30\\\\Net\;force = 10\;Newton[/tex]
Since the rightward force is greater than the leftward force by a magnitude of 10 Newton, the ball will move to the left.
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How many molecules of H2O are in 8.54 moles of H2O?
Select one:
a. 5.14 * 10^24 molecules H2O
b. 2.86 * 10^23 molecules H2O
c. 6.02 * 10^23 molecules H2O
d. 5.14 * 10^23 molecules H2O
Answers
Answer:
[tex]\boxed {\boxed {\sf A. \ About \ 5.14 *10^{24} \ molecules \ H_2O}}[/tex]
Explanation:
To convert from moles to units, we must use Avogadro's Number: 6.022 * 10²³
This tells us the number of units (molecules of water in this problem) in 1 mole of a substance (water). We can use it as a ratio or fraction.
[tex]\frac{6.022 *10^{23} \ molecules \ H_2O}{1 \ mol \ H_2 O}[/tex]
Now, we can multiply this fraction by the moles of water (8.54) given.
[tex]8.54 \ mol \ H_2O*\frac{6.022 *10^{23}\ molecules \ H_2O}{1 \ mol \ H_2 O}[/tex]
When we multiply, the moles of water will cancel out.
[tex]8.54 *\frac{6.022 \ molecules \ H_2O}{1 \ }[/tex]
Since the fraction has a 1 as a denominator, we can remove it. The problem will be a simple multiplication problem.
[tex]8.54*6.022 \ molecules \ H_2O[/tex]
[tex]5.142788*10^{24} \ molecules \ H_2O[/tex]
The original measurement of 8.54 has 3 significant figures (8, 5, and 4). Therefore, we must round our answer to 3 sig figs, which is the hundredth place in this case.
The 2 in the thousandth place tells us to leave the 4 in the hundredth place.
[tex]5.14 *10^{24} \ molecules \ H_2 O[/tex]
There are about 5.14*10²⁴ molecules of water in 8.54 moles.
Answer:
5.14 x 10^24 molecules of H2O.
Explanation:
just took the test
Use the drop-down menus after each statement to identify the dry climate region being described.
v climates feature hot summers and cold winters, dividing the climate into sharply contrasting
seasons.
v climates are characterized by very little rainfall, hot summers, and mild winters.
v climates have annual precipitation between 15 and 25 inches.
Semiarid climate regions have areas of grasslands, called
steppes.
Answers
Answer:
✔ semiarid
✔ desert
✔ semiarid
✔ steppes
.
Explanation:
The deserts and steppes comprise the regions that are characterized by dry climates. The dry climates are characterized by very little rainfall, hot summers, and mild winters. The correct option is B.
What is a dry climate?The areas which are very dry and where the water escapes and leaves the area drier than other places is known as the dry climate. Most dry climates have summers very hot, winters cool and warm and the air is very dry.
The main characteristic feature of the dry climate is the low and infrequent rainfall. Arid and semi desert areas have only about 35 cm rainfall per year.
Thus the correct option is B.
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1. Suppose that there were two isotopes of Sodium.
28% of the naturally occurring sodium atoms had a
mass of 22, and 72% atoms had a mass of 23. What
would the average atomic weight of sodium be?
Answers
Answer: C. The university surveys 600 randomly selected students who attend the university. Correct
Explanation:
22.72 is the average atomic weight of sodium.
What are isotopes?Isotopes are different versions of a specific element.
1st isotopes of 22u = 28%
2nd isotopes of 23u = 72%
The average atomic weight of sodium be=
22 x 28 + 23 x72
=2272/100
=22.72
Hence, 22.72 is the average atomic weight of sodium.
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The units of a formula mass are
a. amu
b. micrograms
c. moles
d. grams
Answers
Answer:
the units of a formula mass are amu.
If 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L, the concentration of the resulting solution is A0.025 M B 0.050 M C 0.10 M D 0.50 M E 1.0 M M
Answers
Answer: The concentration of the resulting solution is 0.025 M
Explanation:
According to the dilution law,
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = molarity of concentrated [tex]NaOH[/tex] solution = 1.0 M
[tex]V_1[/tex] = volume of concentrated [tex]NaOH[/tex] solution = 50 ml
[tex]M_2[/tex] = molarity of diluted [tex]NaOH[/tex] solution = ?
[tex]V_2[/tex] = volume of diluted [tex]NaOH[/tex] solution = 2.0 L = 2000 ml (1L=1000ml)
Putting in the values we get:
[tex]1.0\times 50=M_2\times 2000[/tex]
[tex]M_2=0.025M[/tex]
Therefore, concentration of the resulting solution is 0.025 M
The concentration of the resulting solution if 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L is 0.025M
HOW TO CALCULATE FINAL CONCENTRATION:
The concentration of a solution can be calculated by using the following formula:C1V1 = C2V2
Where;
C1 = initial concentration (M)C2 = final concentration (M)V1 = initial volume (L)V2 = final volume (L)According to this question;
C1 = 1.0MV1 = 50mLC2 = ?V2 = 2000mL = 2L1 × 50 = C2 × 200050 = 2000C2C2 = 50 ÷ 2000C2 = 0.025MTherefore, the concentration of the resulting solution if 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L is 0.025M.Learn more at: https://brainly.com/question/17329736?referrer=searchResults
Which substance is correctly identified as a homogeneous or heterogeneous mixture?
A. salad -- heterogeneous
B. milk --- heterogeneous
C. river water --- homogeneous
D. beach sand --- homogeneous
Answers
Answer:
A
Explanation:
A salad with lettuce, cheese, seeds, tomatoes, broccoli, and other vegetables is an example of a heterogeneous mixture.
Milk is not mixed with anything so that is incorrect
River water is mixed in with dirt and minerals so this one is incorrect
Beach sand is incorrect because you can see colored particles.