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3 years ago

Which option explains how purple pigments make some flower petals purple?

1 answer:

3 0

Many of the actual chemicals in flower petals that give them their different colors are called anthocyanins. These are water-soluble compounds that belong to a bigger class of chemicals known as flavonoids. Anthocyanins are responsible for creating the colors blue, red, pink, and purple in flowers.

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Suppose your bedroom is 21 ft long, 17 ft wide, and the distance from floor to ceiling is 7 ft, 6 in. You need to know the volum

umka21 [38]

Answer:

1. 75.82 m^3 (cubic meters)

2. 75820 L (Liters)

Explanation:

Given data

L = 21 FT

W = 17 ft

h = 7 ft 6 in

Calculation

Formula to calculate volume is:

V= L×W×h

put the values in formula

V = 21 ft × 17 ft × 7 ft 6 in

V = 2677.5 ft

Now we will convert Cubic ft to cubic meters, as we know that 1 cubic meter is equal to 35.3147 cubic feet

V (m^3) = 2677.5 ÷ 35.3147

V (m^3) = 75.82 m^3

Now we will calculate liters

as we know that 1 cubic meter is equal to 1000 liters

so multiply the ans. with 1000

L = 75.82 × 1000

L = 75820 l

4 0

4 years ago

Measure that affects the thermal energy of matter but not it's temperature.

jenyasd209 [6]

Answer: mass

Explanation:

6 0

3 years ago

If you start with 6 moles of N2 and 6 moles of H2 (meaning you won't have enough of 1 of the ingredients), how many moles of NH3

Ivahew [28]

Answer:

$4molNH_3$

Explanation:

Hello there!

In this case, according to the given information it will be firstly necessary to set up the chemical equation taking place:

$N_2+3H_3\rightarrow 2NH_3$

We infer we need to calculate the moles of NH3 by using both of the moles of N2 and H2 at the beginning, in order to identify the limiting reactant:

$n_{NH_3}=6molN_2*\frac{2molNH_3}{1molN_2}=12molNH_3\\\\ n_{NH_3}=6molH_2*\frac{2molNH_3}{3molH_2}=4molNH_3\\$

Thus, since hydrogen yields the fewest moles of ammonia, we conclude that we are just able to yield 4 moles of NH3.

Regards!

8 0

3 years ago

The following chemical reaction takes place in aqueous solution: AgF (aq)+ NH4Cl (aq) →AgCl(s)+ NH4F(aq) Write the net ionic equ

Nadusha1986 [10]

Answer:

The net ionic equation is: Ag⁺ (aq) + Cl ⁻ (aq) → AgCl (s)

Explanation:

1) Start by writing the total ionic equation:

The total ionic equation shows each aqueous substance in its ionized form, while the solid or liquid substances are shown with their chemical formula.

These are the ionic species: