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Which of the following would increase the rate of a chemical reaction between hydrochloric acid (HCl) and solid zinc metal (Zn)? A. Decreasing the concentration of HCl B. Pulverizing the zinc metal into
answered
May 28, 2020
Chemistry
high-school
3
votes
205k
views
The difference of three times a number and 4 is negative 19
answered
Dec 14, 2019
Mathematics
middle-school
4
votes
3.3k
views
Once sperm cells are mature and capable of fertilizing an egg they are stored for delivery in this part of the male reproductive system:
answered
Oct 17, 2019
Biology
high-school
3
votes
202k
views
A polynomial function has a root of –4 with multiplicity 4, a root of –1 with multiplicity 3, and a root of 5 with multiplicity 6. If the function has a positive leading coefficient and is of odd degree,
answered
Sep 16, 2019
Mathematics
middle-school
6
votes
69.1k
views
Ln a roller coaster, energy is constantly transferred from what to what?
answered
Sep 3, 2019
Biology
high-school
0
votes
130k
views
You should warm up for about before being physically active
answered
May 29, 2019
Health
high-school
5
votes
57.9k
views
What is the name for the process of recycling materials that make up the earths crust and mantle
answered
May 19, 2019
Chemistry
college
4
votes
57.1k
views
Sue and Cath have $20 left for a cab fare home. The cab fare is $3 per mile plus a $2 fixed charge. What is the maximum number of miles they will be able to travel in the cab?
answered
Mar 7, 2019
Mathematics
middle-school
0
votes
138k
views
Emma buys and sells truck parts. she bought two tires for 35.00 each and later sold them for 65.00 each. She bought three rims for 75.00 each and later sold them for 136.00 each. She bought five headlight
answered
Jan 19, 2019
Mathematics
high-school
4
votes
102k
views
The heat from the bonfire is transferred to the students hands through the process of??? Conduction Convection Radiation Reflection
answered
Nov 25, 2018
Physics
college
6
votes
13.2k
views
Can you draw a really good pic. of the back of someone shooting a free throw? It's for an English project!!!
answered
Aug 16, 2018
Arts
high-school
7
votes
108k
views
A dictionary entry generally contains all of the following except A. pronunciation B. part of speech C. definition D. bibliography
answered
Mar 26, 2018
English
high-school
3
votes
85.8k
views
Each diagram is made of smaller identical pieces tell how many pieces you would shade to model given percent
answered
Feb 8, 2018
Mathematics
middle-school
1
vote
153k
views
At what stages of policy making must lobbyists be involved
answered
Oct 3, 2017
History
high-school
4
votes
129k
views
Which BEST describes the Vedas? a. they are books written by the priests of Mohenjo-daro adn harappa b. they are the teachings of the person who began the Hindu religion c. they are a uniform code of laws
answered
Jul 12, 2017
History
high-school
6
votes
1.2k
views
In a frequency distribution, the mid-value of a class is 12 and its width is 6. The lower limit of the class is: (A) 6 (B) 9 (C) 12 (D) 18
answered
Jan 7, 2017
Mathematics
high-school
7
votes
4.5k
views
Why does English use so many words from so many languages? English is several languages blended together. The rules of English grammar are often inconsistent. English borrowed words from other languages.
answered
Feb 27, 2016
English
high-school
4
votes
216k
views
The sum of a number times 6 and 19 is at least -29
answered
Jun 2, 2015
Mathematics
high-school
3
votes
57.2k
views
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