What is the voltage of a battery circuit with resistance of 3 ohms and current of 5 amps? Answer: The correct answer is-15 Volts. What happens to the current as the resistance increases? Ohm’s law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to […]

What is the meaning of the word waxing? noun. the act or process of applying wax, as in polishing or filling. the act or technique of applying a depilatory wax to the body for removing hair. What does waxed mean? waxed; waxing; waxes. Definition of wax (Entry 3 of 5) intransitive verb. 1a : to […]

How hot is too hot for humans outside? The human body can’t handle excessive heat. That’s generally between about 36° and 37° Celsius (96.8° to 98.6° Fahrenheit), depending on the person. What temperature should I set my combi boiler for hot water? Combi boilers have controls on the unit which allow you to set the […]

What causes the partial negative charge in water? Polarity of water molecules A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent. This gives the oxygen end of the water molecule a partial negative charge, while the hydrogen end has a partial positive charge. What causes […]

Which group of elements is most likely to form two or more ions? group 16 Which of the following metals form more than one ion? Metals that form more than one cation. Cation Systematic Name Common Name Mn 3+ manganese(III) manganic* Fe 2+ iron(II) ferrous Fe 3+ iron(III) ferric Co 2+ cobalt(II) cobaltous* Which elements […]

Is the energy required for a chemical reaction to take place and is the energy associated with every substance? – The energy required for a chemical reaction to take place is known as the activation energy. – If the energy is less than the activation energy, the reaction will not take place. – Chemical Energy […]

What element contains 34 protons? Selenium What is the charge of an ion that has 34 protons and 36 electrons? While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall 2− charge. We represent […]

What is the biogeochemical cycle that describes the movement of oxygen within and between its three main reservoirs? So the cycle which demonstrate the movement of oxygen will be called as oxygen cycle. What are the 3 main biogeochemical cycles? Some of the major biogeochemical cycles are as follows: (1) Water Cycle or Hydrologic Cycle […]

What is the ion product expression for calcium phosphate? Which pair of substances cannot form a buffered aqueous solution? Write the ion product expression for calcium phosphate, Ca3(PO4)2. What is the life expectancy of a tomato plant? 6 months How many years will a tomato plant live? ANSWER: A tomato plant will only last a […]

What is the water cycle powered by and aided by? The complex, constant movement of water on Earth—from the oceans to the air, across the landscape, and through plants and animals—is called the water cycle. It is powered by solar energy, and aided by gravity. What type of energy controls the water cycle? The sun […]