White blood cells (WBCs), also called leukocytes, are the front lines of defense when it comes to our bodies fighting off germs or infection. When we are sick, the immune system snaps into response mode by sending white blood cells to fight off the foreign infection—by either producing protective antibodies or by devouring the bacteria.
A semiconductor conducts electricity at high temperatures, but not at low temperatures. At high temperatures, metalloids act like metals and conduct electricity.
Explanation:
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Answer:
d = 4.5 g/cm³
Metal cube is made up off titanium.
Explanation:
Given data:
Edge length of cube = a = 11.4 mm
Mass of metal cube = 6.67 g
Density and identity of metal = ?
Solution:
First of all we will calculate the volume of cube.
V = a³
V = (11.4mm)³
V = 1481.54 mm³
mm³ to cm³:
1481.54 mm³× 1 cm³/ 1000 mm³
1.482 cm³
Density:
d = m/v
d = 6.67 g/ 1.482 cm³
d = 4.5 g/cm³
Metal cube is made up off titanium because density of titanium is 4.5 g/cm³.
The spoon will get warmer as it takes in the heat of the water
Answer:
2CaO + 2CO2 → 2CaCO2 + O2 is right