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storchak [24]
3 years ago
7

What is variable????​

Chemistry
2 answers:
emmasim [6.3K]3 years ago
7 0

Answer:

<h3>Variable are all the quantities that could change in an experiment.</h3>

Misha Larkins [42]3 years ago
4 0

Answer:

Basically, a variable is any factor that can be controlled, changed, or measured in an experiment. It's anything that can be changed in the experiment.

Explanation:

Scientific experiments have several types of variables. The independent and dependent variables are the ones usually plotted on a chart or graph, but there are other types of variables you may encounter. The presence/absence of the chemical is the independent variable. The health of the (ex:)rat (whether it lives and can reproduce) is the dependent variable.

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Why are large differences in temperature between the wet bulb and dry bulb thermometers are possible only at higher temperatures
photoshop1234 [79]

Answer:

At constant vapor pressure, the relative humidity decreases as the temperature increases, therefore, at higher temperature the relative humidity is low and water readily evaporates from the wet bulb thermometer that results in the cooling of the bulb such that at a given ambient temperature the very low relative humidity results in very large differences between the temperatures of the wet bulb thermometer and that of the dry bulb thermometer and the wet bulb is observed to be the colder thermometer of the two

Explanation:

8 0
3 years ago
URGENT:<br> Do you switch charges for ionic or covalent bonds when naming them?
bekas [8.4K]

Answer:

ionic

Explanation:

7 0
3 years ago
Express the following in liters at STP:<br><br><br><br> 6.62 x 10-3 moles HF
serious [3.7K]

Answer:

The volume of 6.62×10⁻³moles of HF at STP is 148.38×10⁻³ L

Explanation:

Given data:

Number of moles of HF =  6.62×10⁻³ mol

Volume of HF in litter at STP = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Standard temperature = 273 K

Standard pressure = 1 atm

Now we will put the values in formula.

1 atm × V = 6.62×10⁻³mol ×0.0821 atm.L/ mol.K   × 273 K

V = 6.62×10⁻³mol ×0.0821 atm.L/ mol.K   × 273 K  / 1 atm

V = 148.38×10⁻³ L

Thus, the volume of 6.62×10⁻³moles of HF at STP is 148.38×10⁻³ L.

8 0
3 years ago
What is the concentration of a salt water solution with 15 grams of salt in 100 mL of water?
DanielleElmas [232]
It’s 5% because without the 5% you wouldn’t make it to 100 equally
8 0
3 years ago
Read 2 more answers
In a nonpolar covalent bond, electrons are
castortr0y [4]

Answer: c. Shared equally between two atoms

Electrons are shared equally because the atoms have the same electronegativity.

7 0
2 years ago
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