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Elena L [17]
3 years ago
15

Stuck at this. Can anyone help me pls? ​

Chemistry
1 answer:
OLEGan [10]3 years ago
3 0
Honestly dude just guess or asks a friend
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What two factors must be held constant for density to be a constant ratio?
Neko [114]

Answer:

Temperature and Pressure

Explanation:

Temperature and pressure cause change in volume.

So any change in volume will alter the ratio of density as given by equation of density.

Density = mass/ volume

Change in volume will alter the ratio.

Kindly mark it branliest if the answer is little bit satisfying.

7 0
3 years ago
Why do the copper square, penny, and the statue of Liberty all soluble in water?
Romashka-Z-Leto [24]

Answer:

<em>It’s because of the green substance on the copper square, pennies and the Statue of Liberty giving those objects the ability to all be soluble in water. </em>

5 0
2 years ago
In an experiment, a solution required 30. 05 g of nacl, 50. 0 g of , and 0. 4006 g of mgso4. Using the correct number of signifi
Radda [10]

When the use of significant figures and rounding up is applied correctly the mass of the mixture will be 80.5 g.

In cases of addition or subtraction, only the last significant figure of every number is taken into account.

In 30.05, this is 5, in the hundredths. When we look at 50.0, the last significant figure is 0, and it is in the tenths. And in 0.4006, the last significant figure is 6, in the ten thousandths. Of these three, the 0 from 50.0 is in the leftmost position, which means that the last significant figure of the result needs to be in the same position (in the tenths).

Moving onto the actual algebraic operation:

30.05 g + 50.0 g + 0.4006 = 80.4506 g

As we established, the last significant figure should be in the tenths, and we will have to round up 4 to 5 (trailing numbers are greater than 0), which means that the resulting mass will be 80.5 g.

You can learn more about significant figures here:

brainly.com/question/14804345

#SPJ4

7 0
2 years ago
What element has 3 valance electrons and 4 energy levels
Vanyuwa [196]

Answer:

gallium

Explanation:

7 0
4 years ago
Which layer of soil often contains litter?
Lunna [17]
The O Layer. I believe. Or the A horizon
3 0
3 years ago
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