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Sliva [168]
3 years ago
9

WILL GIVE BRAINLEST! --

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
7 0

Answer:

D

Explanation:

help me on my work please

Paladinen [302]3 years ago
5 0

Answer:

d

Explanation:

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Why is a quantitative observation more useful than a non-quantitative one? Which of the following are quantitative?
Strike441 [17]

Explanation:

An observation that can be counted is known as quantitative observation. On the other hand, an observation that does not contain any numerical data is known as non-quantitative observation.

Therefore, given observations are classified as follows.

(a)  The Sun rises in the east - It is a non-quantitative observation as it cannot be measured.

(b)  A person weighs one-sixth as much on the Moon as on Earth - It is a quantitative observation as it can be measured because we know the mass of moon. Hence, we can find out the weight of person.

(c) Ice floats on water - It is a non-quantitative observation as it cannot be measured.

(d)  A hand pump cannot draw water from a well more than 34 ft deep _ It is a quantitative observation because it is measure that more than 34 ft deep water cannot be drawn by the pump.

7 0
3 years ago
(b) what is the major product of the reaction at very low temperatures?
svlad2 [7]
The reaction is low b/c of  the tempature. that's why.
8 0
3 years ago
Which of the following molecules is polar?
Colt1911 [192]

Answer:

CH3F

Explanation:

because if drawn out its is asymmetric

4 0
3 years ago
The rate of disappearance of hbr in the gas phase reaction 2hbr(g)?h2(g)+br2(g) is 0.160 m s-1 at 150°c. the rate of appearance
luda_lava [24]
The reaction rates of the substances whether disappearance of a reactant or the appearance of a product are related to each other by the chemical reaction. The reaction rates are related as follows:

rate = rHBr / 2 = rBr2 = rH2

rH2 = 0.160 / 2 = 0.08 M/s
8 0
3 years ago
Give the formulas for all of the elements that exist as diatomic molecules under normal conditions. See if you can do this witho
GenaCL600 [577]

Answer:

They are:

H2, N2, O2, F2, Cl2, Br2, and I2.

Note: whether the element At molecule is monoatomic or diatomic is incredibly arguable. While some say it exists as diatomic because it is a halogen like bromine, iodine etc, At is in fact extremely unstable and no one has ever really studied the molecules on it, so, when others say it is monoatomic, this is also based on calculations. But the other 7 elements listen above is for sure diatomic.

4 0
3 years ago
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