Answer:
The answer is in fact semi-arid deserts. This just serves as a confirmation cause sometimes the answers be wrong.
Semiarid deserts is the region that receive up to 20 inches of rainfall per year.
What is Rainfall?
This is defined as the amount of precipitation in the form of water droplets that falls onto the surface of Earth from the clouds due to gravity influence.
Semi-arid desert receive more precipitation which is around 20 inches of rainfall than most deserts.
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When mechanical energy is transformed,
A.
potential energy remains unchanged.
B.
heat is given off.
C.
kinetic energy remains unchanged.
D.
friction is encountered.
Answer:
kinetic energy remains unchanged
Which question is a scientist who studies the genetic engineering of crops most likely attempting to answer?
A. How can a more stable supply of crops be created?
В. How can natural selection create better crops?
С. How can crops be grown without a need for light?
D. How can the genetic variation of crops be increased?
Answer:
i think that it is A
Explanation:
the other ones did not make as much sense
A scientist who studies the genetic engineering of crops most likely attempting how more stable supply of crops be created. so, option A is correct.
What is genetic engineering ?Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in labs. This could entail altering a single base pair (A-T or C-G), erasing a section of DNA, or incorporating a new DNA sequence.
In order to fix genetic flaws and hence prevent or treat hereditary illnesses, gene therapy aims to change specific genes.
The goal of genetic engineering is to alter the genes to increase the organism's capabilities beyond what is typical.
The term "genetic engineering" originally applied to a number of methods for modifying or altering living things through their heredity and reproductive processes.
Thus, option A is correct.
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Complete the missing information in the reactions. Then, label the reaction one of the following:
Alpha Decay
Electron Capture
Beta Decay
Positron Emission
.
14
N +
0
Type:
238
92
234
90
Th +
Type:
15
0
15
N +
7
Type:
8
0
32
15
Type:
105
Ag +
47
105
Pd
46
Type:
40
Type:
20
I
244
94 Pu -
Type: :
Pick one answer do not put any links please
Calculate the concentration of hydrochloric acid if 50.0 mL of hydrochloric acid is neutralized by 25.0 mL of 2.0 M sodium hydroxide. The neutralization reaction is shown below HCl + NaOH > H2O + NaCl
Answer:
1.0M HCl is the concentration of the acid
Explanation:
Based on the reaction, 1 mole of NaOH reacts per mole of HCl. That means the moles added of NaOH in the neutralization = Moles of HCl in the solution. With the moles and the volume in Liters we can find the molar concentration of HCl
Moles NaOH = Moles HCl:
25.0mL = 0.025L * (2.0moles / L) = 0.050moles HCl
Molarity:
0.050moles HCl / 0.0500L =
1.0M HCl is the concentration of the acidHow can water affect the rock cycle?
Water can cause rocks to break into sediments through mechanical weathering.
Water can cause rocks to be buried deep underground.
Water can cause rocks to melt.
Water can causer rocks to break into sediments through chemical weathering.
Answer:
b
Explanation:
b because it's a physical change
Convert 16.8 L of nitrogen monoxide gas at STP to grams .
1.What is the coefficient of the scientific notation answer ?
2.What is the exponent of the scientific notation answer ? 3.How many significant figures are there in the answer?
4.What is the right most significant figure in the answer ?
Convert 12.5 grams of fluorine gas at STP to L.
1.What is the coefficient of the scientific notation answer? 2.What is the exponent of the scientific notation answer? 3.How many significant figures are there in the answer ?
4.What is the right most significant figure in the answer?
Answer:
See explanation
Explanation:
1 mole of a gas occupies 22.4 L
x moles occupies 16.8 L
x = 1 mole * 16.8 L/22.4 L
x = 0.75 moles
number of moles = mass/molar mass
mass = number of moles * molar mass
mass = 0.75 moles * 30.01 g/mol = 22.5075 g = 2.25 * 10^1 g
the coefficient of the scientific notation answer = 2.25
the exponent of the scientific notation answer = 1
significant figures are there in the answer = 6
the right most significant figure in the answer = 3
2.
number of moles = 12.5g/38g/mol = 0.3289 moles
1 mole occupies 22.4 L
0.3289 moles occupies 0.3289 moles * 22.4 L/1 mole
= 7.36736 L = 7.36736 * 10^0 L= 7.37 * 10^0 L
the coefficient of the scientific notation answer =7.37
the exponent of the scientific notation answer = 0
significant figures are there in the answer = 6
the right most significant figure in the answer= 3
Identify one factor represented in the diagram that is used to classify the ten types of clouds
how many moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen
Answer:
10 moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen.
Explanation:
The balanced reaction is:
N₂ + 3 H₂ → 2 NH₃
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:
N₂: 1 moleH₂: 3 molesNH₃: 2 molesThen you can apply the following rule of three: if by reaction stoichiometry 1 mole of nitrogen produces 2 moles of ammonia, 5 moles of nitrogen produces how many moles of ammonia?
[tex]moles of ammonia=\frac{5 moles of nitrogen*2 moles of ammonia}{1 mole of nitrogen}[/tex]
moles of ammonia= 10
10 moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen.
How many atoms are there in 8.80 moles magnesium chloride? (write your answer in scientific notation).
Answer:
There are 5.30*10²⁴ atoms in 8.80 moles magnesium chloride.
Explanation:
Avogadro's Number is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension. Avogadro's number applies to any substance.
Then you can apply the following rule of three: if 1 mole of magnesium chloride contains 6.023*10²³ atoms, 8.80 moles of magnesium chloride contain how many moles of atoms?
[tex]amount of atoms=\frac{8.80 moles* 6.023*10^{23} atoms }{1 mole}[/tex]
amount of atoms= 5.30*10²⁴
There are 5.30*10²⁴ atoms in 8.80 moles magnesium chloride.
do weight loss Subliminals work?
Answer:
Some early research suggests that subliminal messages may influence food- and diet-related thoughts and behaviors. However, other research has found that subliminal messages with weight loss cues have no effect.
Explanation:
Fluorine gas a 300 K occupies a volume of 500 mL. To what temperature should it be lowered to bring the volume to 300 mL?
The temperature should be lowered to 300K to bring the volume to 300mL.
What is temperature?Temperature is the degree of hotness or coldness of a place or a body. The SI unit of temperature is Kelvin.
What is volume?Volume is the amount of space occupied by matter. The SI unit of volume is cubic metre.
Using Charles law,
V1/V2 = T1/T2
Where, V1 and T1 are the initial volume and temperature
Similarly, V₂ and T₂ are the final volume and temperature.
Given:
V1 = 500mL
T1 = 300K
V2 = 300mL
T2 = ?
V1T2/V1 = V2T1/V1
T2 = V2T1/V1
= 300mL x 300K/500mL
T2 = 180K
Hence, the temperature should be lowered to 300K to bring the volume to 300mL.
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Which of the following is true of all stars? A) they produce energy and radiation B) they have about the same temperature c) they are generally the same size and color D) they produce energy for the same length of time
Answer:
A)
Explanation:
All stars produce some type of energy and radiation. But stars vary in temperature, size, color, and the length of energy they produce.
What type of organism is the common house cat?
F
parasite
G
saprophyte
H
autotroph
J
heterotroph
Answer:
F
parasite
Explanation:
The behavior of an organism is influenced A. only by the organism's life experiences. B. only by the organism's evolutionary history. C. by both the organism's evolutionary history and its life experiences. D. by neither the organism's evolutionary history nor its life experiences.
How does Gibbs free energy predict spontaneity?
O A. If AG > 0, the reactigais spontaneous.
B. If AG = 0, the reaction is spontaneous.
C. If AG < 0, the reaction is spontaneous.
O D. If AG = TAS, the reaction is spontaneous.
Answer:
C
Explanation:
plz mark brainliest
Gibbs free energy predict spontaneity if G < 0, the reaction is spontaneous and the correct statement is option C.
What is Gibbs Free Energy?Gibbs free energy is a quantity that is used to measure the maximum amount of work done in a thermodynamic system when the temperature and pressure are kept constant.
Gibbs free energy is denoted by the symbol ‘G’. Its value is usually expressed in Joules or Kilojoules.
Gibbs free energy can be defined as the maximum amount of work that can be extracted from a closed system.
Gibbs free energy to determine the spontaneity of a process.
Therefore, Gibbs free energy predict spontaneity if G < 0, the reaction is spontaneous and the correct statement is option C.
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Is heat a from of kinetic or potential energy?
Answer:
its made up of both but I would probably say kinetic
Explanation:
The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the most? (3 points)
a
Silver, 0.239 J/(g °C)
b
Aluminum, 0.921 J/(g °C)
c
Lithium, 3.56 J/(g °C)
d
Water, 4.184 J/(g °C)
Answer:
the answer is B
Explanation:
You are given three liquids. You know that one of them is a suspension, one is a solution with nonelectrolytes, and the other is a solution with electrolytes. Describe the process by which you would differentiate between the three.
Answer:
decant/ filter then decompose the electrolytes by electrolysis
Explanation:
Differentiation of suspension solution is done by filtering and differentiation of electrolyte and non-electrolyte solution is done by electrolysis process.
What is electrolysis process?Electrolysis process is used to decompose the any electrolyte present in any solution into their constitute ions towards the cathodes and anodes under the electric flow of current.
Process which is required to differentiate suspension solution is filtering, because in this solution suspended insoluble particles are present which get filtered. Now to differentiate between non electrolyte and electrolyte solution we will use the electrolysis process, as non electrolyte solution do not show any behavior in this.
Hence, we use filtering and electrolysis process for the differentiation.
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How many moles of ammonia are produced due to the reaction with two moles of nitrogen?
Answer:
17.03052 mutiple by 2
34.06104grams
2. What percentage of the offspring
will have the red flowers?
Answer:
1/4 of the offspeing will have the red flowers
What theoretical yield of NaCl would result from reacting 3.00 moles of Na2CO3 with excess HCl (aqueous)?
Answer:
350.7 g of NaCl
Explanation:
For this reactions our reactants are:
HCl and Na₂CO₃.
Then, the reaction is:
2HCl + Na₂CO₃ → 2NaCl + H₂CO₃
2 moles of hydrochloric acid react to 1 mol of sodium carbonate in order to produce 2 moles of salt and 1 mol of carbonic acid.
Ratio is 1:2. 1 mol of sodium carbonate can produce 2 moles of NaCl
Then, 3 moles of carbonate may produce (3 . 2) /1 = 6
We convert the moles to mass to determine the theoretical yield
6 mol . 58.45g /mol = 350.7 g
The theoretical yield of NaCl produced is 350.7 g.
What is NaCl?NaCl is a salt, and it is an ionic compound.
The reaction is
[tex]\rm 2HCl + Na_2CO_3 \rightarrow 2NaCl + H_2CO_3[/tex]
2 mol of HCl reacts with 1 mol of [tex]Na_2CO_3[/tex] and produces 2 mol of NaCl and 1 mol of [tex]H_2CO_3[/tex].
The ratio will be [tex]Na_2CO_3[/tex] : NaCl
1 : 2
Then, for 3 mol of [tex]Na_2CO_3[/tex]
[tex]\dfrac{3 \times 2}{1} = 6[/tex]
Now, convert the moles to mass
[tex]6\; mol \times 58.45g /mol = 350.7 g[/tex]
Thus, the theoretical yield produced is 350.7 g.
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Need help on science ASAP
Answer:
3
Explanation:
The plates are moving away from each other
Overflow during a heavy rainstorm from a wastewater treatment plant would result in
A. polluted runoff into nearby ponds.
B. flooding in the local aquifer.
C. weakened housing foundations.
D. over-treated drinking water.
Answer: a.polluted runoff into nearby ponds
Explanation:
Answer:
Aa
Explanation:
Read the temp what is it?
___ SeCl6 + ___ O2 --> ___ SeO2 + ___ Cl2
What is the balanced equation for these reactions?
I give Brainliest! Please no links
Answer:
SeCl₆ + O₂ → SeO₂ + 3Cl₂
Explanation:
Unbalanced:
SeCl₆ + O₂ → SeO₂ + Cl₂
Count the atoms.
On the left side, we have 1 Se atom, 6 Cl atoms, and 2 O atoms.
On the right side, we have 1 Se atom, 2 O atoms, and 2 Cl atoms.
So everything is balanced except for Cl. To balance, we put a 3 coefficient in front of Cl₂.
SeCl₆ + O₂ → SeO₂ + 3Cl₂
c:
1. Determine the pH of the following solutions:
a. 1 x 10-3 M HCI
please refer to the attachment
Hope This Helps You ❤️
Answer:
HCI is a strong acid : HCI -> h^+ + CI^- [ H^+ ] = 1.0 x 10 ^-3 -> pH = -log[ H^+ ] = -log 10 ^-3 = 3
Explanation:
What will happen to the Sun in approximately 5.5 billion years?
Answer:
This lifespan began roughly 4.6 billion years ago, and will continue for about another 4.5 – 5.5 billion years, when it will deplete its supply of hydrogen, helium, and collapse into a white dwarf.
Explanation:
Got this from the internet lol
A gas at a temperature of 300 K occupies a 5 L flexible container at a pressure of 150 kPa. What volume will it occupy at STP?
6.73 L
This one requires the combined gas law.
P1V1/T1 = P2V2/T2
P1 = 150 kPa = 1.48 atm
V1 = 5 L
T1 = 300 K
P2 = 1 atm
V2 = This is what we’re solving for.
T2 = 273 K
P2 and T2 are based on the conditions of STP. I also changed P1 to atm to keep the units consistent.
Solve the equation for V2:
V2 = P1V1T2 / T1P2
V2 = (1.48 atm)(5 L)(273 K) / (300 K)(1 atm) = 6.73 L
can someone help with this???
Answer:
2Mg(s) +O₂(g) → 2MgO(s)
Explanation:
Mg(s) +O₂(g) → MgO(s)
When a chemical equation is balanced, the number of atoms of each element is equal on both sides of the arrow. We usually balance O and H last.
In this case, the number of Mg atoms is equal on both sides. Thus, let's move on to balance the O atoms. On the left side, there are 2 O atoms, while there is only 1 O atom on the left side. Thus, write a '2' in front of MgO.
Mg(s) +O₂(g) → 2MgO(s)
Now, the number of Mg atoms is not equal. Write a '2' in front of Mg to balance it.
2Mg(s) +O₂(g) → 2MgO(s)
The equation is now balanced with 2 Mg atoms and 2 O atoms on each side.