Strontium burns red
copper makes blue
barium glows green
sodium yellow
calcium salt orange
incandesence of iron (with carbon), chacoal, or lamplack gold
magnesium, aluminum and titanium were found to give off white sparkles, silver
Hopes this help you.
24 hours 37 minutes are represented by 0.1 martian sol
Hey mate
SORTING METHOD can easily be used to separate a mixture of steel ball bearing and marbles. This separation method is suitable because the two substances that are mixed together have big sizes, so it is easy to separate the two by hand picking the particles. Sorting method is usually used as a separation technique when the size of the mixture is big and the mixed substances are in the same state.
Hope it help ya
Answer:
Explanation:
Volume of cylinder = πr²h where r is radius of cylinder, h is height of cylinder
r = d/2 = 21/2 = 10.5 cm; h = 25.2 cm
volume of cylinder = (22 * 10.5 cm * 10.5 cm * 25.2 cm) / 7
volume = 8731.8 cm³ = 8.7318 L
Using the ideal gas equation, PV = nRT
P = 4.00 MPa = 4.0 * 10³ kPa, V = 8.7318 L, R = 8.314 L.kPa/mol.K,
n = mass / molar mass
where mass = 0.474 kg or 474 g, molar mass of BF₃= 68 g/mol
n = 474 g / 68 g/mol = 6.9706 moles
making T subject of formula in the ideal gas equation;
T = PV/nR
T = (4.0 * 10³ kPa * 8.7318 L)/(6.9706 mol * 8.314 L.kPa/mol.K)
T = 602.675 K
T in °C = K - 273.15
T = 602.675 -273.15 = 329.5 °C
T = 330 °C