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Questions (18)
Max spent $53 and now has no money left. How much does he have before purchase?
6 answers
2,016 views
you reacted magnesium with a hydrochloric acid aqueous solution and hydrogen gas was produced. Let's say that you collected the
1 answer
829 views
Could somebody tell me dose my answer for this question right or wrong for this question.My answer is reverse
2SO2(g) + O2(g) ↔
1 answer
612 views
Which of the following statements is false ?
a) S is negative when water condenses at 100oC b) Ssurroundings is positive
0 answers
704 views
Calculate ∆S universe for the process H2O (s) → H2O (l) given that
∆Hfusion = 6.02 kJ/mol and ∆S system = 22.1 J/K mol .
0 answers
529 views
A large governmental survey of dental care among children 2 to 17 years old found the following distribution of times since last
0 answers
1,163 views
A school survey found that 9 out of 10 students like pizza. If three students are chosen at random with replacement, what is the
2 answers
4,467 views
Mr.Roy needs two students to help him with a science demonstration for his class of 18 girls and 12 boys. He randomly chooses
3 answers
2,775 views
A single card is drawn at random from an ordinary deck of cards. Find the probability that is either an ace or a black card.
4 answers
6,636 views
Geography
Helen made 6 pizzas and cut each of them into eighths. If she severed 3 1/4 pizzas, how many slices of pizza did Helen
3 answers
769 views
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the
1 answer
972 views
x: 0, 1, 2, 3
y: 3, 2, 1, 0 I don't know what the pattern is in this x and y line graph. Please help me.
3 answers
447 views
Characteristics of a large,fast growing population
Please help me and I did search,but I couldn't find the answer.
1 answer
457 views
A substance that has a mass of 20g and volume of 10cm3.
How much mass does one cm3 of this substance have? A substance with a
1 answer
1,533 views
This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think
1 answer
512 views
one-third of a ===>1/3 x a
one-eighth of r ====> 1/8 x r Is this answers correct or wrong?
1 answer
402 views
*Is the statement below true of false?
The expression (14x + 7y) + 5x + 9(33y + 11) is the sum of three terms. I think this
3 answers
1,060 views
*Is identifying factors in the expression 6(x+5) an algebraic expression?
*Is the statement below true of false? The expression
0 answers
560 views
Answers (5)
10+18 20+6
Thank you so much !
Thanks !
its a coordinate graph/line graph. Okay, so the x axis is the horizontal line and the y axis is the vertical line. I don't know if it's that pattern, but the pattern is like this. y = ?
#1 70%=0.7 (because70%/100%=0.7) The half-life 1/2=0.5 Equation: 0.7=0.5^(t/5730) t=5730log0.7/log0.5=2949(years)