Pedro

This page lists questions and answers that were posted by visitors named Pedro.

Questions

The following questions were asked by visitors named Pedro.

Which element results if 2 protons and 2 neutrons are ejected from a radium nucleus with atomic number 88 and mass number 226 - show workings? What is actually ejected is an alpha particle (helium nucleus). The new atomic number is 88-2 = 86 and the new a...

Reactants O ll CH2 = CH - CH - OH + CH3 - CH - CH2 - C l l l CH3 CH3 OH compound 1 compound 2 Products? identify any functional groups in compounds 1&2, circle them and name them clearly? complete the equation for reation 1 by drawing the abbreviated stru...

state noble gas whose electron configuration is attained in a lewis structure for hydrogen cyanide and noble gas attained in lewis structure for cyanogen? I have answered this several times but at times it really wasn't an answer. I am not familiar with d...

use the properties of sodium cyanide described above to deduce the type of bonding that holds this compound together, explaining in 1 or 2 short sentences how you arrived at your conclusions. Write a balanced chemical equation for the reaction that occurs...

. Leng Xiong is unable to reconcile the bank balance at January 31. Leng’s reconciliation is shown here. Cash balance per bank $3,660.20 Add: NSF check 370.00 Less: Bank service charge 25.00 Adjusted balance per bank $4,005.20 Cash balance per books $3,97...

//program that puts two lists in order in one single list with all the numbers in order import java.util.Scanner; public class listOrder { public static void main (String [] args){ int [] list1; int [] list2; int [] list3; int temp; list1 = new int [10];...

plane ascends at a 40° angle. When it reaches an altitude of one hundred feet, how much ground distance has it covered? To solve, use the trigonometric chart. Round the answer to the nearest tenth.

Which of the following best describes the econmic trends of the 1920s?

At a flea market held each weekend, an artist sells handmade earrings. The table below shows the average number of pairs of earrings sold for several prices. Given the pattern in the table, how much should the artist charge to maximize revenue? Table: pri...

What kind of reaction is it when the reactants produce carbon dioxide and water

using synthetic subsititution to evaluate the polynomial functuion for the given value of x. h(x)= -8x^3+14x-35; x=4

Write the word equations below as chemical equations and balance. copper + sulfuric acid yield copper(II) sulfate+ water + sulfur dioxide

Predict the products of the chemical reaction aluminum + iron(III) oxide

The two largest diner chains in Kansas compete for weekday breakfast consumers. The two chains, Golden Inn and Village Diner, each offer weekday breakfast customer a â��breakfast clubâ�� membership that entitles customers to a breakfast buffet between 6:0...

For a model rocket, the altitude h in meters, as a function of time t, in seconds, is given by h=68t-8t^2. after how many seconds will it hit the ground?

y^2 fifth root of 64x^6 - 6 fifth root of 2x^6y^10

If mixing baking soda, (NaHCO3) with vinegar (CH3COOH) to generate carbonic acid (H2CO3), which breaks up into water and carbon dioxide gas) and sodium acetate (NaCH3COO), would the equation be: NaHCO3 + CH3COOH yields H2CO3 + NaCH3COO

For the sequence, describe the pattern, write the next term, and write a rule for the nth term. 2/3,4/4,6/5,8/6,...

Lisa is planning to put a border around the edge of a circular table. She needs to know how long the border needs to be so that she can buy the material. Which measurement does Lisa need?

Can you write3+5+6=14 as a multiplicacion sentence? Explain.

Mr.Jacobs budgeted $1,200 for tiles.His sketch of the floor requires him to use 38 white tiles.Each white tile costs $12.Write and solve an inequality to find the maximum amount he can spend on brown tiles.

Sentence for describe a situation that can be modeled with the ratio 8 to 3

7.6×10^6 in standard. Form

Determine the number of combinations on a bicycle lock that has a 3-digit number combination with only 3 numbers where the numbers can be repeated to open the lock

What is the total number of mole of atoms in 1 mole of Al2(CO3)3?

which digit makes 345 blank divisible by 2

what number is a prime 4 13 26 15

Can anyone help me?? Suppose Ann’s bread recipe calls for 900 g of flour, 0.68 kg of sugar, 145 mg of salt, and 185 mg of baking powder. Her scale measures grams only. How can she convert each of the ingredients to equivalent measures in grams? Dont give...

The position of a particle moving along the x axis varies in time according to the expression x=4t^2+2 where x is in meters and t is in seconds. Evaluate it's position at the following times a) Find the displacement from 0s to 3s b) Find the average veloc...

Is it possible to have very little power but use a lot of energy? How?

Two carts with the same mass are pushed together with a compressed spring between them. When the carts are let go, both move apart, from the spring force. Which will move with a higher speed? What will be the total momentum of the system be? Two cars, one...

The system absorb 100 J of heat while the system does 100 J of work?

A mirror 2cm long and 1cm wide is mounted on a wall of 6cm long and 3cm high. How many mirror is needed to cover the wall?

Find the values of the 30th and 90th percentiles of the data 129, 113, 200, 100, 105, 132, 100, 176, 146, 152

Why might a Hindu offer food or flowers to a god such as Shiva?

How important is India’s Geography to the beliefs of Hinduism?

If degree measures of the angles of △ABC are represented by 2x, x+10, and 2x−30, then ΔABC must be — A.obtuse. b.right. c.isosceles d.scalene.

Who is NOT most protected by herd immunity? A) People who choose not to get vaccinations for religious reasons B) Health college students C) People with HIV D) Elderly people

Alex is planning to get fit before spring break of next year, so he is joining L.A Fitness. They have an enrolling special for $29.99 plus a monthly fee of $35 per month. Write the equation.

Answers

The following answers were posted by visitors named Pedro.

is it a double replacement?

The gravitational energy decreases. because P.E.= m*g*h

mass: 2.04 molar mass of MgSO4: 24.3+32.1+16*4=120.4 moles= 2.04/120.4 = 0.0169mol

Zinc + Hydrochloric acid --> Znic Chloride + Hydrogen Sodium hydroxide + sulfuric acid --> sodium sulfate +water Sodium + Hydrogen --> sodium hydride 2CH3COOH + Cu --> (CH3COOH)2Cu + H2

a= F/m =16/0.5 =32m/s v²=2*32*5 v =17.9 But I get 17.9m/s..... acceleration is equal to net force over mass or just force over mass? Anything wrong with my steps? Can I minus 17.9 by 5N which is the friction?

Can't answer without knowing the 2020 market price.

N(373,67) means the distribution is a normal distribution with mean = 373 and the variance = 67 (standard deviation = square root of 67).

If there are 1 billion six hundred and forty thousand shares in circulation, and my mate says he owns 0.042% of the shares, how many shares does he hold?

Describe a situation that can be modeled with the ratio 8 to 3

(4*n-6)/(n*(n-1))

P(A) = 4/9 P(B) = 0.9375 P(A∩B)= 4/9 P(C) = 0 P(D) = 3/4 P (A∩D) = 11/36

With f the probability of fail a) First branch: f1=(1/3)*(1/3) Second branch: f2=1/3 Thus: The probability of success of the system is:(1-(1/3)*(1/3))*2/3 =2/3*(1-1/9)=(2*8)/(3*9) b) First branch: f1= 1-(2/3)*(2/3)=5/9 second branch f2=1/3 Thus: The proba...

a)diagrams -p1 -(p2)- end -(p3)- end b)-(p1)-(p2)- end -(p3)----- end

c= 1/128 P(Y<X)= 83/128 P(Y=X)= 1/32 P(X=1)= 10/64 P(X=2)= 17/64 P(X=3)= 0 P(X=4)= 37/64 E[X]= 3 E[XY]= 227/32 VAR(X)= 3/2

vaquero argentino

I am a 6th i can speak spanish

A D D Corner kick Goal kick B A B Goalie A

Doesn’t anyone have the full test answers

An object with an initial speed of 4.0 meters per second accelerates uniformly at 2.5 meters per second² in the direction of its motion for an allotted time of 7.8 seconds. What is the final speed of the object?

I dont know i need help