All categories

4 years ago

2. In our bodies, carbon dioxode

Chemistry

1 answer:

ANEK [815]4 years ago

8 0

I’m not 100% sure but I’m thinking B or C

You might be interested in

When hydronium and hydroxide neutralize each other as they react in equal amounts, what is true of their molarities? A. Their mo

Fed [463]

A. Their molarities are equal.

H₃O⁺ + OH⁻ → 2H₂O

1:1

8 0

3 years ago

Read 2 more answers

After a recrystallization, a pure substance will ideally appear as a network of __________. If this is not the case, it may be w

Stells [14]

Answer:

Large crystals

Slowly

Explanation:

Recrystallization is a procedure used to purify an impure compound in a solvent. The concept used here is that the solubility of most of the solids increases with increase in temperature.

Recrystallization is also called as method of fractional crystallization.

After a recrystallization, a pure substance will ideally appear as a network of large crystals. If this is not the case, it may be worthwhile to reheat the flask and allow the contents to cool more slowly.

4 0

3 years ago

an engineering team is conducting a trial launch of a few rocket . which part is the engineering process is the team in ?

brilliants [131]

Answer:

Evaluate the result (Apex)

Explanation:

7 0

3 years ago

An acid is hydrogen and one or more nonmetals. Select one: True False

dlinn [17]

Answer:

true

Explanation:

hope this helps!

brainliest please

have a great day

please fully rate

please no reporting. (it makes me sad)

6 0

2 years ago

In a lab in New York, Thomas and Nikola collected data over several trials. Thomas recorded his measurements as 10.0 A, 11 A, an

Anna11 [10]

Nikola's reading has a lower range and it is logical to conclude that his reading is more precise.

Explanation:

Precision is the ability to reproduce the same set of result from a measurement. The more repeatability a measurement is, the more precise it is.

From the given pool of data, it is easy to determine which set of data is more precise over the other.

Thomas measurements: 10.0 A, 11 A, and 8 A

Nikola measurements: 9.0 A, 9.2 A, 8.8 A

Using the range method, it is possible to find the precision in this pool of data.

Method and Solution:

Find the range of the sample:

Range = highest value - lowest value

Thomas measurement; Range = (11-8)A = 3.0A

Nikola measurement; Range = (9.2-8.8)A = 0.4A

Find the mean of the samples:

Mean of Thomas measurement = $\frac{10 + 11+ 8}{3}$ = $\frac{29}{3}$ = 9.7A

Mean of Nikola measurement = $\frac{9+ 9.2+ 8.8}{3}$ = $\frac{27}{3}$ = 9A

Now let us quote the range of value of the mean of each measurement:

Thomas 9.7±3.0A

Nikola 9.0± 0.4A

Nikola's reading has a lower range and it is logical to conclude that his reading is more precise.

Learn more:

mean calculation brainly.com/question/12068498

#learnwithBrainly

5 0

3 years ago