. The Visible universe is estimated to contain 1022 stars. How many moles of stars arc present in the visible universe

Related questions

Lead nitrate on decomposition gives

---

Zinc sulphate forms a colourless solution in water

---

In the double displacement reaction between aqueous potassium iodide and aqueous lead

---

Which metal is stored in kerosene oil

---

BaCl2(aq) Na2SO4(aq) BaSO4(s) 2NaCl (aq) Above reaction involves which type of reaction

---

Magnesium ribbon on burning in air produces

---

Give reasons a Platinum gold and silver are used to make jewellery

---

Buckminsterfullerene is an allotropic form of

---

Zinc + Hydrochloric acid

---

The characteristic processes observed in anaerobic respiration are

---

Sodium metal can be stored under

---

Why is sodium kept immersed in kerosene oil

---

What is the decomposition reaction Explain it with suitable examples

---

Compare and contrast the arrangement of elements in Mendeleev periodic table and the Modem periodic table

---

In the modem periodic table, calcium (atomic number 20) is surrounded by elements with atomic

---

How does the electronic configuration of an element relate to its position in the modem periodic table

---

How does the electronic configuration of an element relate to its position in the modem periodic table

---

Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the periodic table

---

The positions of three elements A, B and C in the periodic table are shown below:

---

An atom has electronic configuration 2, 8, 7.

---