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Which elements do hydrogen fuel cells combine to produce electricity? hydrogen and oxygen hydrogen and carbon hydrogen, oxygen, and nitrogen hydrogen, carbon, and nitrogen What’s the awnser
answered
Jul 31, 2020
Physics
middle-school
1
vote
156k
views
Write the equation of the line that has an x-intercept of -3 and passes through the point (-3,7) A.x=-3 B.y=-3 C.y=7
answered
Jun 13, 2020
Mathematics
middle-school
4
votes
179k
views
What is the molar mass of the following calcium fluoride molecule? CaF2 20 Ca 40.08 Calcium 9 F 19.00 Fluorine
answered
Sep 15, 2019
Chemistry
high-school
2
votes
80.3k
views
How does friction act as an unbalanced force for objects in motion?
answered
Jun 8, 2019
Physics
middle-school
4
votes
150k
views
The positions of two divers from the water’s surface after a dive are shown: Kris: −17 feet Graham: −22 feet Which inequality explains why Graham is deeper in the water than Kris? Answer : Because −22
answered
May 7, 2019
Mathematics
college
3
votes
199k
views
Levi and Clara are trying to move a very heavy box. Levi is pushing the box with a force of 30 N, and Clara is pulling the box with a force of 50 N. The box exerts a frictional force of 65 N. Which best
answered
Mar 25, 2019
Physics
college
6
votes
111k
views
25% in phase 1 and 75% in phase 2, is this overmatching or undermatchin
answered
Nov 18, 2018
Biology
high-school
7
votes
77.5k
views
Once a civilization had a surplus of food, it could support which of the following?
answered
Sep 22, 2018
Business
middle-school
6
votes
128k
views
Which type of hull rides on top of the water rather than pushing the water aside?
answered
Jun 24, 2018
History
high-school
2
votes
118k
views
What is probably the most important thing children learn from peer interactions?
answered
Apr 1, 2018
Social Studies
high-school
5
votes
158k
views
Which of these instruments are most closely related with regard to their appearance and how they are played?
answered
Mar 7, 2018
Geography
high-school
6
votes
59.4k
views
Which type of drugs kill pain by blocking impulses at specific receptor sites of the brain and spinal cord
answered
Dec 10, 2017
Health
high-school
3
votes
83.1k
views
What domain is an onion
answered
Jun 23, 2017
Chemistry
middle-school
6
votes
135k
views
Instructions:Select the correct answer. Which description most clearly defines mood in literature? thoughts formed by a reader while reading a literary work emotion evoked in the reader by a literary work
answered
Feb 4, 2017
English
high-school
0
votes
56.3k
views
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