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Anit [1.1K]
3 years ago
12

What is the majority of the atom composed of *TWO WORD ANSWER* ANSWER ASAP WILL AWARD BRAINLIEST! SCAM ANSWERS WILL BE REPORTED

Chemistry
1 answer:
Olin [163]3 years ago
6 0

Answer:

Most of the atom is empty space. The rest consists of a positively charged nucleus of protons and neutrons surrounded by a cloud of negatively charged electrons. The nucleus is small and dense compared with the electrons, which are the lightest charged particles in nature..

Explanation:

Hope it helps you..

Y-your welcome in advance..

(;ŏ﹏ŏ)(ㆁωㆁ)

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How many moles of CuO are needed to react with 5.9 moles of CO2
Likurg_2 [28]

Answer:

If 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.

Explanation:

The balanced reaction is:

CuO + CO₂ → CuCO₃

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

  • CuO: 1 mole
  • CO₂: 1 mole
  • CuCO₃: 1 mole

You can see that the stoichiometric relationship between CuO and CO₂ is 1: 1. In other words, for each mole of CuO that reacts, one mole of CO₂ will also react.

So <u><em>if 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.</em></u>

8 0
3 years ago
write a chemical equation that represents baking soda (NaHCO3) reacts with hydrochloric acid (HCI) to produce sodium chloride, w
swat32

Answer:

NaHCO3 + HCl = NaCl + H2O + CO2

Explanation:

The total number of atoms of each element on either side of the equation must be equal.

7 0
3 years ago
This is for my Science assignment: A molecule is made up of at least (blank) different atoms. Fill in the blank, please. Best an
Ierofanga [76]

Answer:

2 differet atoms.

Explanation:

Molecule: group of two or more atoms held together by chemical bonds. So, minimum 2 atoms are required to form a molecule.

3 0
3 years ago
A 0.435 g sample of a metal, M, reacts completely with sulfuric acid according to M ( s ) + H 2 SO 4 ( aq ) ⟶ MSO 4 ( aq ) + H 2
Tresset [83]

<u>Answer:</u> The molar mass of metal is 52.4 g/mol

<u>Explanation:</u>

To calculate the moles of hydrogen gas collected, we use the equation given by ideal gas which follows:

PV=nRT

where,

P = pressure of the hydrogen gas = Total pressure - vapor pressure of water = (756.0 - 23.8 ) torr = 732.2 torr  

V = Volume of the gas = 201 mL = 0.201 L    (Conversion factor:  1 L = 1000 mL)

T = Temperature of the gas = 25^oC=[25+273]K=298K

R = Gas constant = 62.364\text{ L.mmHg }mol^{-1}K^{-1}

n = number of moles of hydrogen gas = ?

Putting values in above equation, we get:

732.2torr\times 0.210L=n\times 62.364\text{ L. torr }mol^{-1}K^{-1}\times 298K\\\\n=\frac{732.2\times 0.210}{62.364\times 298}=0.0083mol

The given chemical equation follows:

M(s)+H_ 2SO_4(aq.)\rightarrow MSO_4(aq.)+H_2(g)

By Stoichiometry of the reaction:

1 mole of hydrogen gas is formed by 1 mole of metal

So, 0.0083 moles of hydrogen gas will be formed by = \frac{1}{1}\times 0.0083=0.0083mol of metal

To calculate the molar mass of metal from given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of metal = 0.0083 moles

Given mass of metal = 0.435 g

Putting values in above equation, we get:

0.0083mol=\frac{0.435g}{\text{Molar mass of metal}}\\\\\text{Molar mass of metal}=\frac{0.435g}{0.0083mol}=52.4g/mol

Hence, the molar mass of metal is 52.4 g/mol

7 0
3 years ago
What does a Primary Consumer eat?
icang [17]
Plants or algae, they are herbivores
3 0
3 years ago
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