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Blizzard [7]
3 years ago
5

HELP ASAP PLEASE

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
6 0
Randomly pick 50 students from each grade level. 1:1 ratio of boys to girls. Randomly section 1/2 of the 50 students from each grade level into groups A and B. Have group A drink Starbucks. Have group B drink nothing. Hand the same academic test of mixed subjects to each student. Record the data.
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7 on the pH scale represents what?
Nitella [24]

Answer:

seven on the ph scale is the neutral point

Explanation:

The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

3 0
2 years ago
Multiple Choice 1. Protons are located in the nucleus of the atom. A proton has a) No charge b) A negative charge C A positive c
Ber [7]

Answer:

C.proton has positive charge

Explanation:

4 0
3 years ago
Read 2 more answers
What's the break up of rock caused by mechanical or chemical processes
Vlad1618 [11]
It depends if your talking about science or math but It could be both if it says something about weathering which is what causes a rock to break it might be chemical ill comment and tell you the correct answer
4 0
3 years ago
What will be the volume of a gas sample at 337 K if its volume at 237 K is 12.0 L? Round your answer to 1 digit after the decima
oksano4ka [1.4K]

Answer:

17.1 L

Explanation:

V1/T1=V2/T2

V2=(V1*T2)/T1

V2= (12.0L * 337K)/237K

V2=17.1L

7 0
4 years ago
The following is an example of which type of chemical reaction?AgNO3 (aq) + NaCl (aq) --> AgCl (s) + NaNO3 (aq)
OLEGan [10]
Notice that the metals trade places.  That means it is a double replacement RXN or C
4 0
3 years ago
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