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just olya [345]
3 years ago
15

Which information in the periodic table indicates the number of protons in an atom?      A. the position of the element in its c

olumn              B. the element’s chemical symbol C.the element’s atomic mass D. the element’s atomic number
Chemistry
2 answers:
daser333 [38]3 years ago
5 0
HEYA!!!

The answer to your question is D.

Because atomic no. refers to no. of protons.

I hope it works out..

:)
Leni [432]3 years ago
3 0
Hi there!


D is true

the number of protons is same as atomic number in an atom


good luck!
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A student wants to collect data during an experiment about the transfer of kinetic energy in a sample of water and ice. Which to
erastova [34]

Given what we know, the tool in question that will help the student collect data regarding the transfer of kinetic energy between water and ice would be a thermometer.

<h3>How does the thermometer measure kinetic energy?</h3>

It does not do so directly. However, kinetic energy in water molecules is reflected in the temperature of the water. When water molecules increase their kinetic energy and move more, they become hotter. Increased or decreased heat is an indirect way to measure the transfer of kinetic energy in water.

Therefore, given that the temperature of the water is a reflection of the transfer of kinetic energy happening, we can confirm that the tool that will help the student collect the data needed is a thermometer.

To learn more about kinetic energy visit:

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3 0
2 years ago
Drag each label to the correct location. An element’s position in the periodic table provides information about its atomic struc
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4 0
3 years ago
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How many moles of oxygen gas react to yield 0.200 mole water? . . C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g)
Harlamova29_29 [7]
C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g) 
molar ratio of H2O to O = 6:8 
<span>we have 0.200 moles of H2O so we need 0.200 * 8/6 moles of O2 = 0.267 moles of O2 

Therefore, there will be 0.267 moles of O2 gas required to yield 0.2 moles of H20.


I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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4 0
3 years ago
An atom has four electrons in its valence shell. What types of covalent bonds is it capable of forming?
Ierofanga [76]

Answer:

The answer to your question is below

Explanation:

An atom with four electrons in its valence shell is capable of forming:

single bonds and atom with the described characteristics, can form 4 single bonds or a combination of single bonds and double or triple bonds. Ex alkanes

double bonds this atom can form one double bond and two single bonds or two double bonds. Ex alkenes

triple bonds this atom can form one triple bond and one single bond, Ex alkynes.

6 0
3 years ago
Iron is found in Earth's crust as several iron compounds. Calculate the mass in kilograms of the amount of each of the following
myrzilka [38]

2074.74 kg is the mass of siderite in which 1x10^3 kg of iron is present.

Explanation:

Mass of iron is given as 1x10^3 Kg

mass of iron in siderite FeCO3 can be known

number of moles in 1x10^3 Kg  iron is calculated by the formula.

number of moles = \frac{mass}{atomic mass of one mole}

atomic weight of iron is 55.84

number of moles = \frac{1000.1000}{55.84}

 n= 17908.309 moles of iron in 1000 kg

1 mole of FeCO3 has 1 mole of Fe

x moles of FeCO3 will have \frac{x}{17908.309} moles

\frac{1}{1} = \frac{x}{17908.309}

x = 17908.309 moles of FeCO3 is there.

so mass can be calculated as number of moles x molar mass of one mole of the substance.    (molar mass of siderite is 115.854 grams/mole)

17908.309 x 115.854

= 2074749.230 grams of siderite

(the molar mass is converted to kg/mole as the mass of iron is given by kg.

0.1158 kg is the molar mass of siderite)

2074749.230 grams of siderite is converted to kilogram

2074.74 kg is the mass of siderite in which 1x10^3 kg of iron is present.

4 0
3 years ago
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