What is the meant by gross reading

Chemistry

2 answers:

kirza4 [7]3 years ago

7 0

Answer:

<em>You use gross to describe something unacceptable or unpleasant to a very great amount, degree, or intensity.</em>

saw5 [17]3 years ago

3 0

Answer:

When something is gross, it's disgusting. The noun, a gross, is the complete amount (before expenses), and the verb "to gross" is to bring in money. Two things will tell you which meaning is the right one with a word like gross: the part of speech and the context. ... earn before taxes, expenses, etc.

Explanation:

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Is washing your hands with soap a physical or chemical change.

SVETLANKA909090 [29]

Answer:

I think that's a physical change since nothing is getting it's properties changed.

Explanation:

a chemical change usually changes the properties and cannot be changed back, this is simply washing your hands so I would guess that a physical change. think of like putting water on paper, the properties aren't changed you just have a paper with water on it now and can be easily dried.

4 0

3 years ago

A 150-lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ?

Alex17521 [72]

The question above is simply asking us to convert the value from calories into kilojoules. Therefore, we need some factor to multiply to be able to convert it to such units. For calories to kJ, the factor would be 4.184.

2700 cal ( 4.184 kJ/cal) = 11296.8 kJ

5 0

3 years ago

Read 2 more answers

Ethers are almost always used as solvents for Grignard reactions, all of the reasons why they work so well are not fully underst

vfiekz [6]

Answer:

Ether is used as a solvent because it is aprotic and can solvate the magnesium ion.

Explanation:

Solubility in Water

Because ethers are polar, they are more soluble in water than alkanes of a similar molecular weight. The slight solubility of ethers in water results from hydrogen bonds between the hydrogen atoms of water molecules and the lone pair electrons of the oxygen atom of ether molecules.

Ethers as Solvents

Ethers such as diethyl ether dissolve a wide range of polar and nonpolar organic compounds. Nonpolar compounds are generally more soluble in diethyl ether than alcohols because ethers do not have a hydrogen bonding network that must be broken up to dissolve the solute. Because diethyl ether has a moderate dipole moment, polar substances dissolve readily in it.

Ethers are aprotic. Thus, basic substances, such as Grignard reagents, can be prepared in diethyl ether or tetrahydrofuran. These ethers solvate the magnesium ion, which is coordinated to the lone pair electrons of diethyl ether or THF. Figure attached, shows the solvation of a Grignard reagent with dietheyl ether.

The lone pair electrons of an ether also stabilize electron deficient species such as BF3 and borane (BH3). For example, the borane-THF complex is used in the hydroboration of alkenes (Section 1

5 0

4 years ago

Can someone tell me the answer ?

ludmilkaskok [199]

The Aufbau principle states that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels (e.g., 1s before 2s). In this way, the electrons of an atom, molecule, or ion harmonize into the most stable electron configuration possible.

7 0

4 years ago

Plz Help Me

Rasek [7]

Answer:- The wavelength is $1.36*10^1^2m$ and the right option is D.