A 0.42-kilogram objects would take 10 to make 4.2-kilogram object. Why?
The question is simply asking 4.2 divided by 0.42- which is exactly ten. OR, you could simply count how many decimal places- which is one to the left- multiplying. (Right=divide, left= multiply) So each decimal place is TEN, to that would make sense as well. I hope this helped.
-6th grader
To calculate the number of moles in 42 grams of CO2, we first need to find the molar mass of CO2, which is approximately 44 grams per mole. Then, divide the given mass by the molar mass to find the number of moles. In this case, 42 grams of CO2 is equivalent to 42/44 = 0.955 moles.
Kg (kilogram) is the standard - although it is not a standard of weight, but of mass. The kilogram is used world-wide as the standard of mass. It is part of the SI (the International System of units).
It is 19.051 kg (approx.). Kilogram is the SI unit of mass and pound is an imperial unit of mass. To convert from pound to kg, multiply the pound unit by 0.453592.
The table that weighs 42 pounds has alot of mass
It is equal to 92.59 pounds approximately. Kilogram is the metric unit and pound is the imperial unit for mass. 1 Kilogram is 2.204 pounds. So we multiply kg by 2.204 to get the equivalent pounds.
The mass number is the sum of protons and neutrons in an atom. If the mass number is 75 and the number of neutrons is 42, then the number of protons would be 75 - 42 = 33. Since atoms are electrically neutral, the number of electrons in the atom would also be 33.
To find the number of neutrons, subtract the atomic number (number of protons) from the mass number. For this atom with an atomic number of 42 and a mass number of 96, the number of neutrons would be 96 - 42 = 54 neutrons.
Kilograms are a measure of mass, and since mass never changes, you would be 42 kg on every planet.
The mass of an object does not depend on gravitational pull. Their mass would still be 42 g on the moon. (By the way, that's one small person, with the mass of about 3 empty soda cans...)
Molybdenum's atomic number is 42 and its atomic weight is 95.94
The average man typically has around 42-45 of their body weight as muscle mass.
To calculate the number of moles in 42 grams of CO2, we first need to find the molar mass of CO2, which is approximately 44 grams per mole. Then, divide the given mass by the molar mass to find the number of moles. In this case, 42 grams of CO2 is equivalent to 42/44 = 0.955 moles.
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
7 and 6
To find the number of moles in 42 g of NaCl, divide the given mass by the molar mass of NaCl. The molar mass of NaCl is approximately 58.5 g/mol (sodium's atomic weight is 23 and chlorine's is 35.5). So, 42 g / 58.5 g/mol ≈ 0.72 moles of NaCl.
They are: 13+14+15 = 42
Density = (mass) / (volume) = 42/28 =1.5 gm/cm3