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7nadin3 [17]
3 years ago
7

GIVING BRAINLIEST 5 STARS AND HEART!

Chemistry
2 answers:
pashok25 [27]3 years ago
7 0

Answer:

There is somehting in the water or the soil

Explanation:

andrew11 [14]3 years ago
6 0

Generally speaking, acidic soil, with a pH lower than 6.0, yields blue or lavender-blue hydrangea blooms. Alkaline soil, with a pH above 7.0, promotes pinks and reds. With a pH between 6 and 7, the blooms turn purple or bluish-pink. To lower your pH, add garden sulfur or aluminum sulfate to your soil.

The secret's in the soil

Let’s look at why pH is so important.

Most major plant nutrients are more accessible at a pH of 6 to 6.5. A pH that is too high or too low can keep plants from absorbing nutrients from the soil. The nutrients are unavailable — or not absorbable — to the plant because of soil's chemistry. This problem can manifest itself in a variety of ways, but in the case of hydrangeas, the bloom color changes.

Color variation in hydrangeas is due to the presence or absence of aluminum compounds in the flowers. If aluminum is present, the color is blue. If it is present in small quantities, the color is variable between pink and blue. If aluminum is absent, the flowers are pink.

You might be interested in
(a) Consider the reaction of hydrogen sulfide with methane, given below:
Burka [1]

Answer:

a. H2S(g)/t = 1.48 mol/s

CS2(g)/t = 0.740mol/s

H2(g)/t = 2.96mol/s

b. Ptot /t = 981torr/min

Explanation:

a. Based on the reaction:

CH4(g) + 2 H2S(g) → CS2(g) + 4 H2(g)

<em>1 mole of CH4 reacts with 2 moles of H2S producing 1 mole of CS2 and 4 moles of 4H2</em>

<em />

If CH4 decreases at the rate of 0.740mol/s, H2S decreases twice faster, that is 0.740mol/s = 1.48 mol/s

CS2 is produced with the same rate of CH4 because 1 mole of CH4 produce 1 mole of CS2 = 0.740mol/s

The H2 is produced four times faster than CH4 is decreased, that is:

0.740mol/s * 4 = 2.96mol/s

b. With the reaction:

2 NH3(g) → N2(g) + 3 H2(g)

2 moles of ammonia are consumed whereas 1 mole of N2 and 3 moles of H2 are produced.

That means 2 moles of gas are consumed and 4 moles of gas are produced.

If the NH3 decreases at a rate of 327torr/min, the gases are produced in a rate twice faster. That is 327torr/min*2 =

654torr/min

The rate of change of the total pressure is rate of reactants + rate of products:

654torr/min + 327torr/min =

981torr/min

6 0
4 years ago
I really just want to know your opinion... so is there a difference between right and left twix? Or is it all the same...
Andrei [34K]

Answer:

I think it's the same

Explanation:

5 0
3 years ago
Read 2 more answers
Which is the only thermal energy that can be transferred through space?
fgiga [73]

Answer:

radiation

Explanation:

radiation is the transfer of heat energy through space by electromagnetic radiation

8 0
3 years ago
A solution of 0.170 mol/l ion strength is prepared using NaNO3 (solid) and Na2SO4 (solid). Calculate the mass of each salt that
just olya [345]

Answer:

1,06 g of NaNO₃ and 1,42 g of Na₂SO₄

Explanation:

In water, NaNO₃ and Na₂SO₄ dissociates as:

NaNO₃ → Na⁺ + NO₃⁻

Na₂SO₄ → 2 Na⁺ SO₄²⁻

The ionic strength is difined as:

∑ \frac{C_{i} Z_{i}^2}{2} Where Ci and Zi are concentration and charge of each ion in solution. Thus:

\frac{C_{Na+}+C_{NO3-}+4C_{SO4-}}{2} = 0,170 mol/L

Knowing C_{Na^+} = 0,130 mol/L you can obtain:

0,210 mol/L = C_{NO_{3}^-}+4C_{SO_{4}^{2-}} <em>(1)</em>

The 0,130 mol/L of Na⁺ comes from  C_{NaNO_{3}}+2C_{Na_{2}SO_{4}}, thus:

0,130 mol/L = C_{NO_{3}^-}+2C_{SO_{4}^{2-}} <em>(2)</em>

Replacing (2) in (1)

C_{NO_{3}^-} = 0,050 M

And:

C_{SO_{4}^{2-}} = 0,040 M

The 0,050 M of NO₃⁻ comes from:

0,050M×0,250L×\frac{84,99 g}{1molNaNO_{3}} = <em>1,06 g of NaNO₃</em>

The 0,040 M of SO₄⁻ comes from:

0,040M×0,250L×\frac{142,04 g}{1molNa_{2}SO_{4}} = <em>1,42 g of Na₂SO₄</em>

<em></em>

I hope it helps!

5 0
4 years ago
2. Calculate the mass of Kool-Aid needed to make 0.1 L solutions at the following concentrations: a. 0.1 M b. 0.2 M c. 0.3 M d.
murzikaleks [220]
477889654 that the mass
4 0
3 years ago
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