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3 years ago

The periodic table organizes elements according to INCREASING

Chemistry

2 answers:

MAVERICK [17]3 years ago

8 0

Answer:

atomic number

Explanation:

atomic number is also the number of protons an atom has and this number will never change unlike number of neutrons or electrons.

mrs_skeptik [129]3 years ago

4 0

The answer should be c

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Why do you need good toothpaste?

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3 years ago

When taking a measurement with a pH meter, keep the instrument in the _______storage solution or water until it is needed. Rinse

Ksju [112]

Answer:

storage solution , deionized water, stabilizes

Explanation:

A pH meter is a scientific device or instrument that is used to measure the pH of a given aqueous solution thereby determining the nature of the solution whether it is acidic or basic or neutral.

While using the pH meter or taking the measurement using the pH meter --

it should be kept in a storage solution for effective working.
Before using the device, it is rinsed with a deionized water and pat dry.
Record the measurements when the pH meter stabilizes.

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3 years ago

Bismuth has a density of 9.80 g/cm^ 3 . What is the of 3.74 cm ^ 3 of Bi?

Ierofanga [76]

Explanation:

density = mass/ volume

mass= density × volume

mass= 9.80× 3.74

mass= 36.652 g

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3 years ago

A pool is 60.0 m long and 35.0 m wide. How many mL of water are needed to fill the pool to an average depth of 6.35 ft? Enter yo

ra1l [238]

Answer:

4.07 × 10⁹ mL

Explanation:

Step 1: Given data

Length of the pool (L): 60.0 m

Width of the pool (W): 35.0 m

Depth of water in the pool (D): 6.35 ft

Step 2: Convert "D" to m

We will use the relationship 1 m = 3.28 ft

$6.35ft \times \frac{1m}{3.28ft} = 1.94m$

Step 3: Calculate the volume of water (V)

We will use the following expression.

$V = L \times W \times D = 60.0m \times 35.0m \times 1.94 m = 4.07 \times 10^{3} m^{3}$

Step 4: Convert "V" to mL

We will use the relationship 1 m³ = 10⁶ mL.

$4.07 \times 10^{3} m^{3} \times \frac{10^{6}mL }{1m^{3} } = 4.07 \times 10^{9} mL$

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3 years ago

Determine the element symbol, number of protons, and number of electrons for an ion that has a mass number of 56, 30 neutrons, a

9966 [12]

Answer:

Explanation:

Protons = mass number - neutrons 56-30 =26 closest is Al 27

Also in group 13 which loses 3 electrons to be +3

8 0

3 years ago

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