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3 years ago

Describe the conditions that are necessary for snow to fall

2 answers:

4 0

The temperature had to be cold both up in the clouds where snowflakes form and down at ground level. If air near ground level is too warm the snow will melt on way down changing to rain or freezing rain also Moisture is needed to form clouds and precipitation.

WINSTONCH [101]3 years ago

3 0

Temperature has to be at least below 34° for snow to fall and it has to be a day where rain would fall

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if the following is one strand of DNA what would be the corresponding strand of mRNA that is sequenced from it

Dmitrij [34]

Answer:

U A G C C A U C G G A U C C G A U

Explanation:

In DNA, A=T, C=G, and vice versa. RNA has U instead of T. So dna to rna: adenine = uracil, thymine = adenine, cytosine = guanine, and guanine = cytosine.

7 0

2 years ago

The molar mass of water (H2O) is 18.0 g/mol. A sample of water has a mass of 18.0 g. How many moles of water are contained in th

Ludmilka [50]

The sample contains 1.00 mol H₂O.

Moles of water = 18.0 g H₂O × 1 mol H₂O/18.0 g H₂O = 1.00 mol H₂O

3 0

3 years ago

In a hexagonal-close-pack (hcp) unit cell, the ratio of lattice points to octahedral holes to tetrahedral holes is 1:1:2. What i

Alex777 [14]

Explanation:

In a hexagonal-close-pack (HCP) unit cell, the ratio of lattice points to octahedral holes to tetrahedral holes = 1 : 1 : 2

let the :

Number of lattice point = 1x.

Number of octahedral points = 1x

Number of tetrahedral points = 2x

If anions occupy the HCP lattice points and cations occupy half of the tetrahedral holes.

Number of anions occupying the HCP lattice points, A= 1x

Number of cations occupying the tetrahedral points, B = $\frac{2x}{2}=x$

The formula of the compound will be = $A_{1x}B_{1x}=AB$

If anions occupy the HCP lattice points and cations occupy all of the tetrahedral holes.

Number of anions occupying the HCP lattice points, A= 1x

Number of cations occupying the tetrahedral points, B = 2x

The formula of the compound will be = $A_{1x}B_{2x}=AB_2$

6 0

3 years ago

What is the difference between hydrogen bonds and covalent bond in relation to water structure

nadya68 [22]

Answer:

Covalent bonds are intramolecular bonds whereas hydrogen bonds are intermolecular bonds.

<u>hope this helps and good luck :)</u>

5 0

2 years ago

A reversible reaction is a reaction that takes place in the ___________________

Sunny_sXe [5.5K]

Answer:

A reversible Reaction is a reaction that takes place in the (Reactants)

If the reaction Were to (Equal), the rate of the forward reaction would equal that of the reverse reaction

Explanation:

6 0

2 years ago