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3 years ago

Read the paragraph from the section "Thick Tissue

Chemistry

1 answer:

almond37 [142]3 years ago

4 0

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Florida has mild winters due to which system?

Lerok [7]

Answer: Predominant tropical easterly winds sweep across the central and southern portions of the state, keeping the temperatures mild

Explanation:

5 0

2 years ago

what is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g

LekaFEV [45]

Answer:

K8S4O16 or K8(SO4)4 depending on if the SO4 is supposed to represent sulfate or not

Explanation:

Find the molar mass of K2SO4 first:

2K + S + 4O ≈ 174 g/mol

Divide the goal molar mass of 696 by the molar mass of the empirical formula:

696 / 174 = 4

This means you need to multiply everything in the empirical formula by 4:

K2SO4 --> K8S4O16 or K8(SO4)4 depending on if the SO4 is for sulfate or not

4 0

3 years ago

To soften cloths in the wash it is recommended to use 2.0 g of sodium borate per liter of water. If a filled washing machine hol

Evgesh-ka [11]

% m/v of the solution = 0.2%m/v

<h3>Further explanation</h3>

$\tt Percent~m/v=\dfrac{mass~solute(g)}{volume~solution(ml)}\times 100\%$

% m/v = g solute / 100 ml solution

Concentration : 2 g sodium borate / L water

For 10 L⇒20 g Sodium borate

$\tt \%m/v=\dfrac{20~g}{10,000~ml}\times 100\%\\\\\%m/v=0.2\%$

4 0

3 years ago

What information does the rate constant give from the rate law? A. It tells how much the rate of the reaction is affected by vol

Levart [38]

From the rate law, the information that is given by the rate constant is: C. It tells how much the reaction rate is affected by activation energy.

Rate law is also referred to as rate equation and it can be defined as a chemical equation that is typically used to relate the initial (forward) chemical reaction rate with respect to the concentrations or pressures of the chemical reactants and constant parameters.

Mathematically, the rate law is given by this formula:

$R = k[A]^x[B]^y$

<u>Where:</u>

k is the rate constant.

A is the concentration of reactant A.

B is the concentration of reactant B.

In Chemistry, the rate constant is typically used to tell the reaction rate or rate of a chemical reaction that is affected by activation energy.

Read more on rate constant here: brainly.com/question/24749252

7 0

2 years ago

In at least three sentences, explain three disadvantages associated with hydrogen fuel use.

Dmitry_Shevchenko [17]

Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.

Hope this helps

7 0

4 years ago