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A student working in the laboratory produces 6.81 grams of calcium oxide, CaO, from 20.7 grams of calcium carbonate, CaCO3, according to the reaction CaCO3 → CaO + CO2. Calculate the theoretical yield
answered
Feb 15, 2022
Chemistry
college
7
votes
39.0k
views
The Punnett square below represents a dihybrid cross of two rose bushes. In this species, red petals (R) are dominant to pink petals (r), and tall bushes (T) are dominant to short bushes (t). Complete
answered
Sep 16, 2021
Biology
middle-school
3
votes
214k
views
Identify the person who made the correct statement. Mike said petrified fossils are hard and heavy like rock. Bobby said that petrified fossils have the same appearance as when they were alive. Neither
answered
Sep 12, 2021
Chemistry
college
4
votes
235k
views
Activities: Punnett Squares of Birds 1) A black BB (codominant) bird mates with a red RR (codominant) bird. What will the offspring be? Complete the Punnett square. [][][] [][][] [][][] a. What is the
answered
Aug 12, 2021
Biology
high-school
2
votes
40.8k
views
How did Vietnamization' allow the US to cut the number of US troops fighting in the war?
answered
Jul 15, 2021
History
high-school
1
vote
107k
views
A microwave can reheat 1 cup of coffee in 30 seconds. It takes a coffee maker 10 minutes to brew 12 cups of coffee. If the coffee maker requires 900 watts of power and the microwave requires 1200 watts
answered
Jul 14, 2021
Biology
high-school
6
votes
49.9k
views
What is the missing reason in the proof? Given: ∠ABC is a right angle, ∠DBC is a straight angle Prove: ∠ABC ≅ ∠ABD A horizontal line has points D, B, C. A line extends vertically from point B to point
answered
Jul 1, 2021
Mathematics
high-school
1
vote
134k
views
The label on Lulu’s new roll of tape shows that the roll has 7 meters of tape. Lulu uses 3,000 millimeters of tape. How many meters does Lulu have left? (1,000 mm = 1 m) __ m
answered
Jun 22, 2021
Mathematics
middle-school
0
votes
79.8k
views
Which media effects theory looks at why people choose certain media and not others?
answered
Jun 10, 2021
Social Studies
college
3
votes
778
views
The supply of ice cream in town has decreased. Which of the following circumstances most likely caused the reduction? a. A new vendor opened in a neighboring town. b. The costs of milk and sugar decreased.
answered
Mar 21, 2021
Business
high-school
2
votes
105k
views
The Kelton’s are going on vacation 987 miles away. They drive 460 miles day one and 340 miles day two. How many miles left until they reach their final destination?
answered
Feb 22, 2021
Mathematics
high-school
3
votes
4.9k
views
1 guy 2 guy 3 guy 4, how many guys r in my store
answered
Jan 4, 2021
Physics
high-school
5
votes
171k
views
The school principal formal or informal
answered
Sep 27, 2020
History
middle-school
7
votes
147k
views
Mi hermana ___ (buscar) in’s oficina de turismo cerca de us hotel.
answered
Sep 17, 2020
Spanish
middle-school
4
votes
166k
views
The major objectives of any budget system are to: (CIA adapted) A) define responsibility centers, provide a framework for performance evaluation, and promote communication and coordination among organization
answered
Jul 31, 2020
Business
high-school
6
votes
205k
views
Salad (lettuce,tomato,and onion) a pure substance or a mixture ?
answered
Jun 9, 2020
Chemistry
high-school
4
votes
64.6k
views
Select all explanations that prove triangle ABC is congruent to triangle ABC Rotation around A ans then reflect over AB Translate ABC to the right and reflect over a horizontal line Dilate by a scale factor
answered
Apr 25, 2020
Mathematics
middle-school
7
votes
144k
views
Ronaldo scored 4 goals in his first soccer game. He then scored the same amount of goals in his next 3 games. If Ronaldo has 10 goals total. how many did he score in each game?
answered
Nov 23, 2019
Mathematics
middle-school
2
votes
70.8k
views
1. 100 students who are in 9th or 10th grade were asked if they participated in at least one extracurricular activity (sports, music, or drama). 40 of the students are in 10th grade, but only 18 of these
answered
May 12, 2019
Mathematics
middle-school
5
votes
216k
views
What is parasitism in biology
answered
Nov 30, 2018
Biology
high-school
0
votes
190k
views
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