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2 years ago

5

Which change will most likely increase the rate of a chemical reaction? lowering the temperature of the reactants adding an inhi

bitor to the reactants increasing the concentration of one of the reactants

1 answer:

Schach [20]2 years ago

7 0

Answer:

By increasing the concentration of One of the reactants.

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A female spinach plant with flat (Ff) leaves is crossed with (pollination and fertilization occur) a male spinach plant with cri

Vedmedyk [2.9K]

Answer:

Question

A female spinach plant with flat (Ff) leaves is crossed with (pollination and fertilization occur) a male spinach plant with crinkly (ff) leaves. Explain wha

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3 years ago

What is the pressure inside a cylinder when the volume changes from 12.49 dm3 to 47.32 dm3 with an initial pressure of 7.257 x 1

zvonat [6]

Answer:

<u>The pressure inside becomes : 202.646 KPa</u>

Explanation:

Given ,

<em>The temperature inside the cylinder is constant</em>
<em>The number of moles of the gas inside the cylinder will also be constant because it's a closed one.</em>

<em>Now according Boyle's law , </em>

<em>The pressure of a gas of fixed mass is inversely proportional to its volume at a constant temperature.</em>

Thus ,

$P_1V_1=P_2V_2\\$

$P_1$ is the initial pressure $7.257*102*10^3 Pa$
$P_2$ is what we need to find
$V_1 = 12.49dm^3$ - initial volume
$V_2 = 47.32dm^3$ - final volume

∴

$7.527*102*10^3*12.49=P_2*47.32\\P_2=2.02646*10^5Pa$

The pressure inside becomes : 202.646 KPa

4 0

3 years ago

What is the molarity if 6664 grams of boron iodide is dissolved in 5.25 liters of water?

Virty [35]

Answer:

3.24 mol/L

Explanation:

Given that:

mass of Boron triiodide = 6664 grams

molar mass of BI_3 = 391.52 g/mol

Recall that:

number of moles = mass/molar mass

∴

number of moles = 6664 g /391.52 g/mol

number of moles = 17.02 mol

Also;

Molarity = moles for solute/liter for solution

= 17.02 mol/5.25 L

= 3.24 mol/L

4 0

3 years ago

A) What volume of concentrated nitric acid (15.8 M) is needed to prepare 4.0 L of a 2.0 M solution?

azamat

Answer:

A.0.51L

B 1.67L

Explanation:

using the formula ;C1V1 =C2V2

15.8×V1=2×4

15.8V1=8

V1=8/15.8

V1=0.51L

apply the same method for B

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2 years ago

A horizontal row on the periodic table is known as a _____. group family period list

Mekhanik [1.2K]

Period. Groups/families are the vertical columns on the periodic table.

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3 years ago

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