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3 years ago

Lithium is a metal,chlorine is a non metal,so LiCl would be a ______bond

1 answer:

ivann1987 [24]3 years ago

4 0

Ionic is the answer. This is because lithium has a positive charge, while chlorine has a negative charge, meaning the compound doesn’t necessarily have an overall charge.

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How much water must be added to 516 mL of 0.191 M HCl to produce a 0.133 M solution? (Assume that the volumes are additive)

Alisiya [41]

Answer:

225 mL of water must be added.

Explanation:

First we <u>calculate how many HCl moles are there in 516 mL of a 0.191 M solution</u>:

516 mL * 0.191 M = 98.556 mmol HCl

Now we use that number of moles (that remain constant during the <em>dilution process</em>) to <u>calculate the final volume of the 0.133 M solution</u>:

98.556 mmol / 0.133 M = 741 mL

We can <u>calculate the volume of water required</u> from the volume difference:

741 mL - 516 mL = 225 mL

5 0

3 years ago

Which of the following elements has the largest atomic radius? (2 points) Silicon Aluminum Sulfur Phosphorous

amm1812

as you move in the periodic table from left to right he atomic radius decreases...

this is how they are avenged in periodic table, now you can answer which is having smaller radius and also which has larger radius

Al Si P S

6 0

3 years ago

Read 2 more answers

Monosodium glutamate (NaC5H8NO4) is used extensively as a flavor enhancer what is its percent composition

tensa zangetsu [6.8K]

Answer:

% sodium= 13.6 % sodium

% carbon= 35.5 % carbon

% hydrogen= 4.7% hydrogen

% nitrogen = 8.3% nitrogen

% oxygen = 37.8 % oxygen

Explanation:

To find its percent composition means that we are to find to find the percentage of each of the constituents of the compound present.

The molar mass of monosodium glutamate is 169.11 gmol-1

Hence;

Percent of sodium= 23 gmol-1/169.11 gmol-1 × 100 = 13.6 % sodium

Percent of Carbon= 60 gmol-1/169.11 gmol-1 ×100 = 35.5 % carbon

Percent of hydrogen= 8/169.11 gmol-1 ×100 = 4.7% hydrogen

Percent nitrogen = 14/169.11 gmol-1 × 100 = 8.3% nitrogen

Percent oxygen = 64/169.11 gmol-1 ×100 = 37.8 % oxygen

3 0

3 years ago

How many moles of hydrogen are there, if there are 4 molecules of hydrogen?

Scorpion4ik [409]

Answer:

Explanation:

In this case, according to the Periodic table

there is 1g of hydrogen per mole. As we know that dihydrogen (H2) has two hydrogen atoms per molecule. So,there will be 2*1g hydrogen per mole=2g dihydrogen per mole.

If there is 2g dihydrogen per mole,and we have 4g,then we know that there is 2 mole dihydrogen in 4g.And for hydrogen there is 4 moles in 4g of hydrogen

5 0

3 years ago

5. A shiny, gold-colored bar of metal weighing 57.3 g has a volume of 4.7 cm 3 . Is the bar of metal pure

agasfer [191]

1. The bar of metal is not pure gold.

2. The volume of 50.0 g of air is 42,016 mL.

3. The mass of the pure aluminum is 135 g.

4. The light beam's wavelength in meters is 475 x $10^{-9$ m.

<h3>What is density?</h3>

The density of a substance is the ratio of the mass of the substance and its volume.

Density = mass/volume.

For the first problem: mass = 57.3 g, volume = 4.7 cm3

Density of the metal = 57.3/4.7

= 12.19 g/cm3

The density of gold is 19.3 g/cm3. Thus, the bar of metal is not pure gold.

For the second problem: density = 1.19 x $10^{-3$ g/ml, mass = 50.0 g

Volume = mass/density

= 50/1.19 x $10^{-3$

= 42,016 ml

The volume of 50.0 g of air is 42,016 mL.

For the third problem: density = 2.70 g/ml, volume = 50.0 ml.

Mass = density x volume

= 2.70 x 50

= 135 g

The mass of the pure aluminum is 135 g.

Lastly:

nano = $10^{-9$

475 nm = 475 x $10^{-9$ m

The light beam's wavelength in meters is 475 x $10^{-9$ m.

More on density can be found here: brainly.com/question/15164682

#SPJ1

6 0

1 year ago