Answer:
MOUTHWASH lol lol lol lol. im just kidding heres the answer Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.
Answer:
Sexual Reproduction has to include 2 parents and it can cause different genetic variety. While asexual reproduction is the parent (1) making copies of itself which has no genetic variety (mainly single celled organisms like protists and such)
Explanation:
My explanation is your answer
A student is given an antacid tablet that weighs 5.4630 g. The tablet is crushed and 4.3620 g of the antacid is added to 200. mL of simulated stomach acid. It is allowed to react and then filtered. It is found that 25.00 mL of this partially neutralized stomach acid required 13.6 mL of a NaOH solution to titrate it to a methyl red end point. It takes 27.7 mL of this NaOH solution to neutralize 25.00 mL of the original stomach acid. How much of the stomach acid (in mL) has been neutralized in the 25.00 mL sample that was titrated
Solution :
It is given that :
Weight of the antacid tablet = 5.4630 g
4.3620 gram of antacid is crushed and is added to the stomach acid of 200 mL and is reacted.
25 mL of the stomach acid that is partially neutralized required 13.6 mL of NaOH to be titrated for a red end point.
27.7 mL of [tex]$NaOH$[/tex] solution is equivalent to [tex]$25 \ mL$[/tex] of the original stomach acid. Therefore, 13.6 mL of NaOH will take x [tex]$\frac{25\text{ mL of original stomach acid}}{\text{27.7 mL of NaOH}}$[/tex]
= 12.27 ml of the original stomach acid.
John pushes a 10 pound box 5 feet. How much work is done?
500 ft-lb
1,000 ft-lb
5 ft-lbs
50 ft-lbs
Answer:
50 I think not 100% sure
Explanation:
Because you just do 10*5 which equals 50.
What is the meaning of ground state energy?
hope it helps you ❣❣
Mark me as brainliest
How many grams does 5.29 x 10^25 molecules of AgNO3 weigh?
14900 g AgNO₃
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableMolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 5.29 × 10²⁵ molecules AgNO₃
[Solve] grams AgNO₃
Step 2: Identify Conversions
Avogadro's Number
[PT] Molar Mass of Ag - 107.87 g/mol
[PT] Molar Mass of N - 14.01 g/mol
[PT] Molar Mass of O - 16.00 g/mol
Molar Mass of AgNO₃ - 107.87 + 14.01 + 3(16.00) = 169.88 g/mol
Step 3: Convert
[DA] Set up: [tex]\displaystyle 5.29 \cdot 10^{25} \ molecules \ AgNO_3(\frac{1 \ mol \ AgNO_3}{6.022 \cdot 10^{23} \ molecules \ AgNO_3})(\frac{169.88 \ g \ AgNO_3}{1 \ mol \ AgNO_3})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 14923 \ g \ AgNO_3[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
14923 g AgNO₃ ≈ 14900 g AgNO₃
how many grams of P3O9 contain 9.67x10^23 atoms of oxygen?
Answer:
49.1 g
Explanation:
First we convert 9.67x10²³ atoms of oxygen into moles, using Avogadro's number:
9.67x10²³ atoms ÷ 6.023x10²³ atoms/mol = 1.60 mol OThen we calculate how many P₃O₉ moles there would be with 1.60 O moles:
1.60 mol O * [tex]\frac{1molP_3O_9}{9molO}[/tex] = 0.18 mol P₃O₉Finally we convert 0.18 P₃O₉ moles into grams, using its molar mass:
0.18 mol P₃O₉ * 237 g/mol = 49.1 gA balloon is filled with 30.0 L of helium in the morning when the temperature is 25.00 ℃. By noon the temperature has risen to 55.00 ℃. Determine the new volume of the balloon. *
Answer:
33.0 L
Explanation:
Step 1: Given data
Initial volume of the balloon (V₁): 30.0 LInitial temperature (T₁): 25.00 °CFinal volume of the balloon (V₂): ?Final temperature (T₂): 55.00 °CStep 2: Convert the temperatures to the Kelvin scale
We will use the following expression.
K = °C + 273.15
T₁: K = 25.00°C + 273.15 = 298.15 K
T₂: K = 55.00°C + 273.15 = 328.15 K
Step 3: Calculate the final volume of the balloon
If we assume ideal behavior, we can calculate the final volume of the balloon using Charles' law.
V₁/T₁ = V₂/T₂
V₂ = V₁ × T₂/T₁
V₂ = 30.0 L × 328.15 K/298.15 K = 33.0 L
Which of the following pairs of elements would most likely form a molecular covalent bond?
Answer:
Oxygen and chlorine
Explanation:
oxygen and chlorine are most likely to form covalent compounds
1. When 0.629 grams of Na3PO4.12H2O and 0.527 g BaCl2.2H2O are mixed with water , how many grams of Ba3(PO4)2 are produced?
The number of grams of Ba₃(PO₄)₂ that is produced is : 0.4328 gram
Given data
mass of Na₃PO₄.12H₂O = 0.629 grams
mass of BaCl₂.2H₂O = 0.527 grams
molar mass of Na₃PO₄.12H₂O = 380.12 g/mol
molar mass of BaCl₂.2H₂O = 244.26 g/mol
Determine the number of grams of Ba₃(PO₄)₂ produced
mole of Na₃PO₄.12H₂O = mass / molar mass
= 0.629 / 380.12 = 0.001654 mol
molar mass of BaCl₂.2H₂O = 0.527 / 244.26 = 0.002157 mol
After mixture : Determine the limiting reactant by lower mole ratio
mole ratio of BaCl₂.2H₂O = 0.002157 / 3
= 0.0007191
mole ratio of Na₃PO₄.12H₂O = 0.001654 / 2
= 0.000827
therefore the limiting reactant is : BaCl₂.2H₂O
Final step : Determine the mass of BaCl₂.2H₂O
molar mass of BaCl₂.2H₂O = 601.93 g/mol
Therefore :
mass of BaCl₂.2H₂O = moles * molar mass
= 0.0007191 * 601.93
= 0.4328 gram
Hence we can conclude that The number of grams of Ba₃(PO₄)₂ that is produced is : 0.4328 gram
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If 95.0 g Zn is added to an excess of H2SO4, how many
liters of hydrogen gas will be produced at STP?
Write and balance the equation. Then, calculate the
liters of hydrogen produced.
Please help
Answer:
32.7 L of H₂
Explanation:
We'll begin by calculating the number of mole in 95 g of Zn. This can be obtained as follow:
Mass of Zn = 95 g
Molar mass of Zn = 65 g/mol
Mole of Zn =?
Mole = mass /Molar mass
Mole of Zn = 95/65
Mole of Zn = 1.46 mole
Next, we shall determine the number of mole of H₂ produced by the reaction of 95 g (i.e 1.46 mole) of Zn. This can be obtained as illustrated below:
Zn + H₂SO₄ —> ZnSO₄ + H₂
From the balanced equation above,
1 mole of Zn reacted to produce 1 mole of H₂.
Therefore, 1.46 mole of Zn will also react to produce 1.46 mole of H₂.
Finally, we shall determine the volume of H₂ obtained at STP. This can be obtained as follow:
1 mole of H₂ = 22.4 L at STP.
Therefore,
1.46 mole of H₂ = 1.46 × 22.4
1.46 mole of H₂ = 32.7 L at STP
Thus, 32.7 L of H₂ were obtained from the reaction.
1 = 2 Amps, R = 3 Ohms, V = ? Volts
Answer:
6 volts
Explanation:
Use Ohm's Law:
V = IR
V = (2 amps)(3 ohms) = 6 volts
HELPPP PLZz nowww!!!
A. C
B. B
C. A
D. D
Answer:
b
Explanation:
Answer:
answer b I think so I'm.not clear about it ,I think its CRT ans plz follow me
two compounds of iron a and b contains 1.278 and 1.904 g of chlorine respectively for each gram of iron show that these amount are in the ratio of 2:3
Answer:
Ratio = 2 : 3 (Approx.)
Explanation:
Given:
Compound A = 1.278 g
Compound B = 1.904
Find:
Ratio
Computation:
Ratio = Compound A / Compound B
Ratio = 1.278 / 1.904
Ratio = 2 : 3 (Approx.)
Aside from direct harm, what secondary issue do invasive species present?
They may be able to eat all kinds of native organisms.
They might introduce other organisms like viruses and bacteria.
They might damage the habitat that other organisms rely on.
They may not have any predators.
Answer:
B
Explanation:
The volume of 350. mL of gas at 25°C is decreased to 250. mL at
constant pressure. What is the final temperature of the gas?
V1/T1 = V2/T2
V1 = 350. mL
T1 = 25 + 273 = 298 K
V2 = 250. mL
T2 = ?
Solve the equation for T2: T2 = V2T1/V1 = (250. mL)(298 K)/(350. mL) = 213 K = -60°C
What type of cloud produces severe weather like thunderstorms, thunder
and lighting, occasional hail, and possibly tornadoes?
Answer:
The cumulonimbus cloud
Explanation:
The cumulonimbus cloud, or thunderstorm, is a convective cloud or cloud system that produces rainfall and lightning. It often produces large hail, severe wind gusts, tornadoes, and heavy rainfall.
pls mark brainliest
Answer:
cumulonimbus clouds
Explanation:
that's the answer.
Why does concentration increase when the solvent evaporates?
Answer:
The concentration increases because the solution becomes more pure because the solvent leaves the solution.
Explanation:
define saturated and unsaturated fats
Answer:
i don't no the
answer
i am sorry
Answer:
Saturated fats: Saturated fats are a type of fat-containing a high proportion of fatty acid molecules without double bonds, considered to be less healthy in the diet than unsaturated fat.
Unsaturated fats: Unsaturated fats are a type of fat-containing a high proportion of fatty acid molecules with at least one double bond, considered to be healthier in the diet than saturated fat.
At point a the object has 30 joules of energy. how much energy does the object have at point b?
Answer:
It’s 10
Explanation:
I looked it up
To solve this we must be knowing each and every concept related to energy and its calculations. Therefore, at point b, 10joule of energy is present.
What is energy?Energy is defined in physics as the ability to accomplish work or heat items. It's a scalar measurement with magnitude but no direction. Energy is maintained, which implies it can change forms but is not generated or destroyed. potential energy transforms into kinetic energy.
One type of energy can be transferred into another without breaking a thermodynamic rule. Not all of these energy sources are equally beneficial in practical applications. At point a the object has 30 joules of energy. At point b, 10joule of energy is present.
Therefore, at point b, 10joule of energy is present.
To learn more about energy, here:
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HELP I DON'T HAVE TIME LEFT
Answer:
mass
Explanation:
Answer:
C Mass
Explanation:
mass wont change when a force is put upon it.
Which is the name of the kind of solid substance
formed in this figure?
How many grams of MgCl2 would be needed to make 5.3 liters of a 0.25 molar solution? Round your answer to the nearest 0.01,
Answer: 126.1 grams of are needed to make 5.3 L of 0.25 M solution
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
To calculate the mass of solute for given molarity, we use the equation:
[tex]\text{Molarity of the solution}=\frac{\text{given mass of solute}}{\text {Molar mass of solute}\times \text{Volume of solution in L}}[/tex]
[tex]0.25M=\frac{x}{95.2g/mol\times 5.3L}[/tex]
[tex]x=126.1g[/tex]
Thus 126.1 grams of are needed to make 5.3 L of 0.25 M solution
People can hear ultrasound easily.
A. True
B. False
What is the pH of this solution?
Answer:
pH = 11.216.
Explanation:
Hello there!
In this case, according to the ionization of ammonia in aqueous solution:
[tex]NH_3+H_2O\rightleftharpoons NH_4^++OH^-[/tex]
We can set up its equilibrium expression in terms of x as the reaction extent equal to the concentration of each product at equilibrium:
[tex]Kb=\frac{[NH_4^+][OH^-]}{[NH_3]} \\\\1.80x10^{-5}=\frac{x*x}{0.150-x}[/tex]
However, since Kb<<<1 we can neglect the x on bottom and easily compute it via:
[tex]1.80x10^{-5}=\frac{x*x}{0.150}\\\\x=\sqrt{1.80x10^{-5}*0.150}=1.643x10^{-3}M[/tex]
Which is also:
[tex][OH^-]=1.643x10^{-3}M[/tex]
Thereafter we can compute the pOH first:
[tex]pOH=-log(1.643x10^{-3}M)\\\\pOH=2.784[/tex]
Finally, the pH turns out:
[tex]pH=14-2.784\\\\pH=11.216[/tex]
Regards!
Usually, when the temperature is increased, what will happen to the rate of dissolving?
05))
A)
It will stop.
B)
It will increase.
e
It will decrease
D)
It will remain the same.
Answer:
B) It will increase.
Explanation:
Solubility tends to increase with an increase in temperature
How many particles does 2 moles of H2O have?
Hello,
QUESTION)Whatever the chemical entity, one mole of an entity contains 6.02 x 10²³ entities, this is the Avogadro constant (Na).
N = 2 x Na
N = 2 x 6.02 x 10²³ N = 1.204 x 10²⁴There are therefore 1.204 x 10²⁴ molecules of water in 2 moles of water.
Small particles that settle out of wind and water are called.
sound travels 1,500 m/s through water at 25 degrees celciesunder these conditions how long would it take to travel 300m
Answer:
[tex]v = s \div t[/tex]
[tex]t = s \div v[/tex]
[tex]t = 300 \div 1500 = 0.2s[/tex]
Type the CONVERSION factor (fraction) to calculate the moles in 15.0 g
of potassium sulfide, K2S. *
10 points
Explanation:
5g C7H8 / 92g/mole = 0.054moles
total moles = 0.232moles
mole fraction C6H12 = 0.178moles / 0.232moles = 0.767
mole fraction C7H8 = 0.233
what is the total pressure in a 10.0L flask which contains 0.200mol of H2 and 0.215mol of N2
Answer:
0.998 atm.
Explanation:
NOTE: The temperature is missing in the above question and the value is 20 °C
From the question given above, the following data were obtained:
Volume (V) = 10.0 L
Number of mole of H₂ = 0.2 mole
Number of mole N₂ = 0.215 mole
Temperature (T) = 20 °C
Total pressure (P) =?
Next, we shall determine the total number of mole in flask. This can be obtained as follow:
Number of mole of H₂ = 0.2 mole
Number of mole of N₂ = 0.215 mole
Total number of mole (n) =?
n = mole of H₂ + mole of N₂
n = 0.2 + 0.215
n = 0.415 mole
Thus, the total number of mole in the flask is 0.415 mole
Next, we shall convert 20 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
Temperature (T) = 20 °C + 273
Temperature (T) = 293 K
Finally, we shall determine the total pressure in the flask. This can be obtained as follow:
Volume (V) = 10.0 L
Total number of mole (n) = 0.415 mole
Temperature (T) = 293 K
Gas constant (R) = 0.0821 atm.L/Kmol
Total pressure (P) =?
PV = nRT
P × 10 = 0.415 × 0.0821 × 293
Divide both side by 10
P = (0.415 × 0.0821 × 293) / 10
P = 0.998 atm.
Therefore, the total pressure in the flask is 0.998 atm.
Which of the following has the highest pH?
A. 1 M HCl
B. 0.01 M HCl
C. 0.1 M HCl
D. 0.001 M HCl
Answer: D
Explanation: pH = - log( c). If c= 1.0 M. PH = 0, if c=0.001 M. PH = 3
Answer:b
Explanation:
ik
