Answer:
I believe it's an example of velocity
Explanation:
This is because 85miles/hour south is giving both magnitude (85miles/hour) and direction (south)
Which of the following is evidence that groundwater cause erosion and deposition
Answer:You didn't provide examples
Explanation: Groundwater can cause erosion under the surface as it moves through the soil. During the movement an acid is formed which what causes erosion and deposition.
Hope that helps
Explain your observations on what organisms need to grow. Explain how human activity can impact an organism's ability to obtain the resources it needs to survive. State your opinion about how human activity can be changed to have less impact on the lives of other organisms.
Answer:
The human being sometimes exploits the resources that other living organisms need to survive. This is how competition for the environment increases and many species on this planet are at risk of extinction.
Explanation:
An example of this is how humans exploit mambu canes for commercial products, such as sweets and even toys, thus generating that the panda bear species does not have a food resource to survive.
What is the name of CF7
Answer:
Formula mass in daltons of the chemical component.
The process of fermentation involves chemical reactions that convert solid glucose (C6H12O6) into aqueous ethanol and carbon dioxide gas. Suggest how the speed of reaction alters as the temperature changes from 60C to 30C.
Explanation:
The glucose molecules changes as following:
C6H12O6 —> C2H5OH + CO2
There are 12 atoms of H on the left side and 6 atoms of the right side. It can be balance by putting 2 in front of C2H5OH as shown below:
C6H12O6 —> 2C2H5OH + CO2
There are 6 atoms of C on the left side and 5 atoms on the right side. It can be balance by putting 2 in front of CO2 as shown below:
C6H12O6 —> 2C2H5OH + 2CO2
What happens when a wave hits an object?
the wave is reflected
the wave continues on
the wave is interfered with
the wave stops
Answer:
the wave is reflected. it starts heading towards the other direction
Explanation:
· For the reaction Cl2 + 2KBr → 2KCI + Brz, how many moles of potassium chloride are produced from 119 g of potassium bromide?
Answer: l
2
+
2
K
B
r
→
2
K
C
l
+
B
r
2
Given:
300
g
of
C
l
2
300
g
of
K
B
r
(a) Mass of
C
l
2
= 300g
Molecular mass of
C
l
2
= 2(35.45) = 70.906 g
/
m
o
l
No.of moles of
C
l
2
=
m
a
s
s
/
m
o
l
a
r
m
a
s
s
=
300
/
70.906
=
4.23
moles
Mass of
K
B
r
=
300
g
Molar mass of
K
B
r
=
39
+
79.9
=
118.9
g
/
m
o
l
No.of moles of
K
B
r
=
300
/
118.9
=
2.52
moles
Now,
Consider the equation:
C
l
2
+
2
K
B
r
→
2
K
C
l
+
B
r
2
1
mole of
C
l
2
= 2 moles of
K
C
l
4.23
moles of
C
l
2
= 2x4.23=
8.46
moles
2
moles of
K
B
r
= 2 moles of
K
C
l
2.52
moles of
K
B
r
=
2.52
moles
Now convert moles to mass,
Mass of
K
C
l
produced by
C
l
2
=
8.46
×
70.906
=
599.8
g
Mass of
K
C
l
produced by potassium bromide =
2.52
×
74.5
=
187.74
g
As
K
B
r
is producing lesser moles of product so,
K
B
r
is limiting reactant and produced potassium chloride=
187
Explanation:
Taking into account the reaction stoichiometry, 1 mol of KCl is formed from 119 grams of KBr.
Reaction stoichiometryIn first place, the balanced reaction is:
Cl₂ + 2 KBr → 2 KCI + Br₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Cl₂: 1 mole KBr: 2 molesKCI: 2 molesBr₂: 1 moleThe molar mass of the compounds is:
Cl₂: 70.9 g/moleKBr: 119 g/moleKCI: 74.55 g/moleBr₂: 159.8 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
Cl₂: 1 mole ×70.9 g/mole= 70.9 gramsKBr: 2 moles ×119 g/mole= 238 gramsKCI: 2 moles ×74.55 g/mole= 149.1 gramsBr₂: 1 mole ×159.8 g/mole= 159.8 gramsMoles of potassium chloride producedThe following rule of three can be applied: if by reaction stoichiometry 238 grams of KBr form 2 moles of KCl, 119 grams of KBr form how many moles of KCl?
[tex]moles of KCl=\frac{119 grams of KBrx2 moles of KCl}{238 grams of KBr}[/tex]
moles of KCl= 1 mole
Then, 1 mol of KCl is formed from 119 grams of KBr.
Learn more about the reaction stoichiometry:
brainly.com/question/24741074
brainly.com/question/24653699
why do magnets move objects in different ways
Answer:
Each magnet has a north and south end. Only opposite ends can attract, But if the ends are the same, they push away from each other. Magnets in some engines make it spin in a certain direction.
Solid Silicon can be reacted with Nitrogen gas at a high temperature to form silicon nitride (Si3N4).
1.20 moles of Silicon are added to 1.00 moles of Nitrogen gas.
(5 Points) Balance the equation and indicate the phases.
Si (___) + N2 (___) → Si3N4 (___)
(5 Points) What is the limiting reactant? You must show your work.
Which image shows a foliated metamorphic rock?
light colored rock with fine grains and metallic luster.
Smooth green rock.
dark color rock with coarse grains in parallel layers.
Answer:
C
Explanation:
The answer is in the image.
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Walk in faith and trust in God!
if 2g of potassium are added to 50g of water, what mass of h2 is produced
Answer:
1950 grams
Explanation: The mass of potassium that must react with water to produce 50.0 grams of H2 is 1950 grams
one studrnt rubs a balloon against his hair several times. Another student passes a comb through her hair several times. The students place the comb near the balloon and observe that the comb repels the balloon. Which is the most likely reason the comb is able to repel the balloon?
What’s the difference between a learned behavior in an inherited behavior? Give one example of each
Answer:
short answers:
A learned behavior is a behavior that develops during an animal’s lifetime.
Examples of learned behaviors include tying one’s shoes or solving a math problem.
An inherited behavior is a behavior that an animal is born with.
An example of an inherited behavior is a bird building a nest.
Explanation:
Learned behaviors are those which are gradually developing in us through learning at different ages and it takes time. Inherited behaviour is innate to us which are incorporated with us by birth.
What is learned behaviour?An organism develops a learned behavior as a result of experience. In contrast to learned actions, inherent behaviors are genetically preprogrammed and can be carried out without any prior knowledge or instruction.
Certain behaviors have features that are both acquired and innate. Zebra finches, for instance, have a genetic predisposition to learn a song, but the song they sing is influenced by what they hear from their dads.
Inherited behaviors are inherited from parents to their offsprings. Such as similar nature in sound, angriness, some diseases etc. They are not gathered from any experience and are accompanied by birth.
To find more on learned behaviours, refer here,
https://brainly.com/question/28579889
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Balance all the equations
1)Ferric chloride + Ammonium hydroxide Ferric hydroxide + Ammonium chloride
2) Aluminum + Hydrochloric acid Aluminium chloride + Hydrogen gas
Answer:
Balancing Chemical Equations
Balance the equations below:
1) __1__ N2 + __3__ H2 > _2__ NH3
2) __2__ KClO3 >⮴ __2__ KCl + __3__ O2
3) __2__ NaCl + __1__ F2 ⮴ __2__ NaF + __1__ Cl2
4) __2__ H2 + __1__ O2 ⮴ __2__ H2O
5) __1__ Pb(OH)2 + __2__ HCl ⮴ __2__ H2O + __1__ PbCl2
6)__2__ AlBr3 + __3__ K2SO4 ⮴ __6__ KBr + __1__ Al2(SO4)3
7) __1__ CH4 + __2__ O2 ⮴ __1__ CO2 + __2__ H2O
8) _1___ C3H8 + _5___ O2 ⮴ __3__ CO2 + __4__ H2O
9) __2__ C8H18 + __25__ O2 ⮴ __16__ CO2 + __18__ H2O
10) __1__ FeCl3 + __3__ NaOH ⮴ __1__ Fe(OH)3 + __3__NaCl
11) __4__ P + __5__O2 ⮴ __2__P2O5
12) __2__ Na + __2__ H2O ⮴ __2__ NaOH + __1__H2
13) __2__ Ag2O ⮴ __4__ Ag + __1__O2
14) __1__ S8 + __12__O2 ⮴ __8__ SO3
15) _6___ CO2 + _6___ H2O ⮴ __1__ C6H12O6 + __6__O2
16) ___1_ K + __1__ MgBr ⮴ __1__ KBr + __1__ Mg
17) __2__ HCl + __1__ CaCO3 ⮴ __1__ CaCl2 + __1__H2O + __1__ CO2
18) __1__ HNO3 + __1__ NaHCO3 ⮴ __1__ NaNO3 + __1__ H2O + _1___ CO2
19) _2___ H2O + __1__ O2 ⮴ __2__ H2O2
20) __2__ NaBr + __1__ CaF2 ⮴ __2__ NaF + __1__ CaBr2
Explanation:
which is an expression of molality
Answer:The formula for molality is m = moles of solute / kilograms of solvent.
Explanation:
ASAP pleaseee and Thankyou
options:
genotype
phenotype
Answer:
phenotype then genotype
Explanation:
phenotype is observable traits, genotype is heritable genes that can be passed down
Which statement best explains why protons are used
to identify an element?
Answer:
Every atom of an element will have the same number of protons
Explanation:
Protons are used to identify an element because every atom of an element will have the same number of protons.
Protons are the positively charged particles found in an atom. They are called the atomic numberEvery atom of an element has the same number of protons. An element can have different atom in form of isotopes. These isotopes are only identifiable by the number of protons they have.Juan lays an object on a table in a well-lighted room. The object absorbs all visible light waves. What color object does Juan see?
A. white
B. black
C. violet
D. red
I need the answer for science asap
Answer:
Black
Explanation:
White color reflects visible light while Black absorbs all light, and gives heat, so the answer is Black!
Name two elements whose outer energy levels are complete with two electrons
Answer:
ppsuck
Explanation:
f;lhfadlkahglkaga
The OH-ion concentration of a blood sample is
2.5 x 10-7M. What is the pH of the blood?
a. 6.60
b.0.99
c.740
d.1
Answer:
She okeyy
Explanation:
Example 740 are the think free ofıce pH of the blood 740 blood sample iş takipte kal ❣️
Which of the following best describes a metallic bond?
Answer:the attraction between positive metal ions and interlocking electrons
Explanation: because I got it right
60 POINTS! PLEASE ANSWER!
What letter represents the trough? :) PLEASE FAST!
1) A
2) B
3) C
4) D
Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Port Antonio
Answer:
33km due south
Explanation:
Morant Bay is 33km south of Port Antonio;
Problem: displacement of Morant bay from Port Antonio;
Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.
So, it has magnitude and must be specified with a direction.
Therefore, the displacement of Morant Bay from Port Antonio is 33km due south.What is the compound name of phosphate ?
Answer:
Phosphate, any of numerous chemical compounds related to phosphoric acid (H3PO4).
According to Newton's Second Law of Motion, if the force acting on ar
object stays the same, but the mass of an object increases, then
acceleration will...
A. increase
B. decrease
C. remain the same
D. completely stop
Answer:
B
Explanation:
Because the mass of an object increases, then the acceleration will decrease
What is the charge of phosphate in AlPO4?
The charge of phosphate : 3-
Further explanationOxidation is an increase in oxidation number, while reduction is a reduction in oxidation number.
The formula for determining Oxidation Numbers in general:
1. Single element atomic oxidation number = 0.
Group IA (Li, Na, K, Rb, Cs, and Fr): +1
Group IIA (Be, Mg, Ca, Sr and Ba): +2
Group IIIA(Al, B) : +3
H in compound = +1, except metal hydride compounds (Hydrogen which binds to groups IA or IIA) oxidation number H = -1, for example, LiH, MgH₂, etc.
2. Oxidation number O in compound = -2, except OF2 = + 2 and in peroxide (Na₂O₂, BaO₂) = -1 and superoxide, for example KO₂ = -1/2.
3 The oxidation number in an uncharged compound = 0,
Total oxidation number in ion = ion charge, Example NO₃⁻ = -1
Compound AlPO₄ :
The oxidation number in an uncharged compound = 0
Since the charge of Al as group 3A (or group 13) is +3, while the AlPO₄ compound is a polyatomic compound (consisting of polyatomic ions PO₄ and Al), the PO₄ charge:
charge Al + charge PO₄ = 0
+ 3 + charge PO₄ = 0
charge PO₄ = -3
In which direction will the electrons be pulled in the bond between hydrogen and chlorine?
toward the chlorine atom
toward both atoms equally
sometimes toward chlorine and sometimes toward hydrogen
toward the hydrogen atom
Answer:
toward the hydrogen atom
Explanation:
Answer:
toward the chlorine atom.
Explanation:
took the quiz and got it correct :)
the first plants to grow after a fire are called?
Answer:
Ephemerals
Explanation:
The first plants to move into the new bare ground after a wildfire are wildflowers or “weeds.” These fast-germinating, leafy herbaceous plants are also known as “forbs” or “ephemerals.” They quickly germinate, grow and produce a new crop of seeds.
Answer:
ephemeral
Explanation:
(20 POINTS) I NEED IT TODAY!
Base your answer on the information below and on your knowledge of chemistry.
Two very stable compounds, Freon-12 and Freon-14, are used as liquid refrigerants. A Freon-12 molecule consists of one carbon atom, two chlorine atoms, and two fluorine atoms. A Freon-14 molecule consists of one carbon atom and four fluorine atoms.
To which class of organic compounds do Freon-12 and Freon-14 belong?
Lets say a giant radioactive monster is attacking
Phoenix. This monster is so radioactive and big the air in
Feels easily over 120°. Is this an endothermic or
exothermic reaction?
Answer: exothermic reaction
The monster is releasing heat energy to the environment surrounding it. The term "exo" means "outside".
In contrast, an endothermic reaction is one where energy is absorbed from the environment to cool down the surrounding air.