1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MariettaO [177]
3 years ago
6

3. Which of the following is the correct notation for an isotope with 3 protons and 5 neutrons?

Chemistry
1 answer:
DENIUS [597]3 years ago
4 0

Answer:

option c

Explanation:

neutros equal to mass num - atomic num

You might be interested in
How many moles of Mg(OH)2(aq) would be required to neutralize 6.0 mol HCl(aq)?
jekas [21]

Answer:

3.0molMg(OH)_2

Explanation:

Hello there!

In this case, for these types of acid-base neutralizations, it is crucial to firstly set up the chemical reaction taking place between the acid and the base; in this case HCl and Mg(OH)2 respectively, whose products are obtained by switching around the anions and cations as shown below:

HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+H_2O(l)

Which must be balanced to accurately predict the mole ratio on the reactants side:

2HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+2H_2O(l)

Whereas we can see a 2:1 mole ratio of the acid to the base; thus, the moles of Mg(OH) required for the neutralization of 6.0 moles of HCl turn out to be:

6.0molHCl*\frac{1molMg(OH)_2}{2molHCl} \\\\=3.0molMg(OH)_2

Best regards!

5 0
3 years ago
I need help with these 4
storchak [24]

Rift Valley Examples

  • East African
  • Rhine Rift Valley (Germany)
  • Baikal Rift Valley (Russia)

Rift Valley Facts/Characteristics

  • Bordered by fault zones and separating land masses
  • A portion of land that drops, forming a valley.
  • Formed as tectonic plates move.

Fossils - Examples

  • Bones
  • Shells
  • Exoskeletons
  • Stone imprints of animals.

Non Examples of Fossils

  • Stones
  • rocks
  • Some bones (If they are fossils they will be a lot heavier than other bones.

Hope this helps.

5 0
3 years ago
Given the balanced equation representing a reaction:
Vilka [71]
(2) a base because they accept H+ ions. NH3 is the conjugate base of NH4+.
5 0
3 years ago
In a hospital laboratory, a 10.0 mL sample of gastric juice (predominantly HCl), obtained several hours after a meal, was titrat
LiRa [457]

Answer: 1.14

Explanation:

HCl+NaOH\rightarrow NaCl+H_2O

To calculate the molarity of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=1\\M_1=?\\V_1=10.0mL\\n_2=1\\M_2=0.1M\\V_2=7.2mL

Putting values in above equation, we get:

1\times M_1\times 10.0=1\times 0.1\times 7.2\\\\M_1=0.072M

To calculate pH of gastric juice:

molarity of H^+ = 0.072

pH=-log[H^+]

pH=-log(0.072)=1.14

Thus the pH of the gastric juice is 1.14

3 0
3 years ago
PLS ANSWER ASAP
Kazeer [188]
The answer is c this is the answer
7 0
3 years ago
Read 2 more answers
Other questions:
  • If a sample of NH3 gas at 689,1 mmHg has a volume of 607 2 mL and the presure is
    8·1 answer
  • What Is Solubility and saturated solution?
    14·1 answer
  • In a reaction to produce sulfuric acid, the theoretical yield is 300.g. What is the percent yield if the actual yield is 280.g?
    8·1 answer
  • What is the purpose of neutron radiation?
    11·1 answer
  • PLEASE HELP ASAP!!!
    12·2 answers
  • What is the definition for domain bacteria?
    14·1 answer
  • Help me plis y need help with this problem !!
    10·1 answer
  • What is the method use to separate sand and water​
    6·1 answer
  • Match the number of neutrons to the correct isotope by studying the atomic number and mass number of each isotope. Drag the item
    9·1 answer
  • . If 30.0 grams of copper (II) chloride reacts with 40.0 grams of sodium nitrate, what is the limiting reactant?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!